Seminars

PMMH’s weekly seminar is held every Friday at 11 am (map)

Antonin Eddi (University of Twente)

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Seminar archive  (465)

• 2025

  • Séminaire PMMH - Christophe Denoual, CEA
    Vendredi 14 février de 11h00 à 12h00 - Salle réunion PMMH 1
    A path to model complex displacive transitions
    C. Denoual1,2, N. Bruzy1,2 1-CEA, DAM, DIF, F-91297 Arpajon, France 2-Université Paris-Saclay, LMCE, F-91680 Bruyères-le-Châtel, France Under shock loading, crystalline metals can accommodate stresses through very rapid microstructural transitions such as deformation twinning or martensitic phase transitions. (…)
  • Séminaire PMMH - Chandan Bose (Univ. Birmingham)
    Vendredi 7 février de 11h00 à 12h00 - Salle réunion PMMH 1
    From Nature to Simulation : Vortex-Dominated Flows and Bioinspired Fluid-Structure Interaction Systems
    In this presentation, I will provide an overview of the ongoing research in my group at the University of Birmingham on the computational modelling of biomimetic engineering systems. These systems leverage advanced numerical methods to simulate and analyze vortex-dominated fluid flows inspired by biological (…)
  • Séminaire PMMH - Elisabeth Lemaire (INPHYNI, Nice)
    Vendredi 31 janvier de 11h00 à 12h00 - Salle réunion PMMH 1
    
  • Séminaire PMMH - Elisabeth Lemaire (INPHYNI, Nice)
    Vendredi 31 janvier de 11h00 à 12h00 - Salle réunion PMMH 1
    Origins of shear-thinning in non-Brownian suspensions
    The rheology of concentrated non-Brownian suspensions has undergone a small revolution in the last 15 years when the importance of the role played by solid contacts between particles was realized. Considering these contacts has allowed to explain the continuous or discontinuous shear-thickening in dense suspensions (…)
  • Séminaire PMMH - Ludovic Berthier, Gulliver
    Vendredi 24 janvier de 11h00 à 12h00 - Salle réunion PMMH 1
    Emerging active turbulence and chaotic advection in dense active matter
    I will show that active mesoscale flows, a.k.a. active turbulence, leading to chaotic advection generically emerge in simple models of active particles leading to streams and vortices reminiscent of multiscale flow patterns in turbulence. The characteristics of these flows do not depend on the specific details of (…)
  • Séminaire PMMH - Ludovic Berthier, Gulliver
    Vendredi 24 janvier de 11h00 à 12h00 - Salle réunion PMMH 1
    Emerging active turbulence and chaotic advection in dense active matter
    I will show that active mesoscale flows, a.k.a. active turbulence, leading to chaotic advection generically emerge in simple models of active particles leading to streams and vortices reminiscent of multiscale flow patterns in turbulence. The characteristics of these flows do not depend on the specific details of (…)
  • Séminaire PMMH - Janniina Salonen (SIMM, ESPCI)
    Vendredi 17 janvier de 11h00 à 12h00 - Salle réunion PMMH 1
    Viscoelastic coarsening of a quasi-2D foam
    Many soft matter materials evolve through surface tension driven phase separation. During this process the growth of domains can occur via material transfer through the continuous phase. A particular example is foams, which coarsen as gas diffuses between bubbles due to differences in Laplace pressure. In aqueous (…)

• 2024

  • Séminaire PMMH – Joseph Ackerman (Lab. Jean Perrin, Sorbonne Université)
    Vendredi 20 décembre 2024 de 11h00 à 12h00 - Salle réunion PMMH 1
    
  • Séminaire PMMH - Hughes Chaté (CEA Saclay)
    Vendredi 13 décembre 2024 de 11h00 à 12h00 - Salle réunion PMMH 1
    Modeling suspensions of swarming bacteria with wet Vicsek models
    Hugues Chaté SPEC, CEA - Saclay & Beijing CSRC, China After a brief introduction to active matter and some remarks about the development of the field, I will first focus on aligning dry active matter, and in particular on Vicsek-style models, the emblematic models in this class. In a second part, I will (…)
  • Séminaire PMMH - Hughes Chaté (CEA Saclay)
    Vendredi 13 décembre 2024 de 11h00 à 12h00 - Salle réunion PMMH 1
    Modeling suspensions of swarming bacteria with wet Vicsek models
    Hugues Chaté SPEC, CEA - Saclay & Beijing CSRC, China After a brief introduction to active matter and some remarks about the development of the field, I will first focus on aligning dry active matter, and in particular on Vicsek-style models, the emblematic models in this class. In a second part, I will (…)
  • Séminaire PMMH - Xanthippi Markenscoff (University of California San Diego)
    Vendredi 6 décembre de 11h00 à 12h00 - Salle réunion PMMH 1
    Instabilities of nucleation and growth of a phase change defect
    Department of Mechanical and Aerospace Engineering University of California San Diego La Jolla, CA 92093-0411 Abstract A defect of phase change in density and moduli modeled as a self-similarly expanding Eshelby ellipsoidal inclusion can nucleate and grow under a critical loading. The ellipsoid possesses the (…)
  • Séminaire PMMH - Xanthippi Markenscoff (University of California San Diego)
    Vendredi 6 décembre 2024 de 11h00 à 12h00 - Salle réunion PMMH 1
    Instabilities of nucleation and growth of a phase change defect
    Department of Mechanical and Aerospace Engineering University of California San Diego La Jolla, CA 92093-0411 Abstract A defect of phase change in density and moduli modeled as a self-similarly expanding Eshelby ellipsoidal inclusion can nucleate and grow under a critical loading. The ellipsoid possesses the (…)
  • Séminaire PMMH - Denis Dumont (IUSTI Marseille)
    Vendredi 29 novembre 2024 de 11h00 à 12h00 - Salle réunion PMMH 1
    Rheology of sticky grains
    In many powder technology processes, coating is applied to fine particles to control their properties or functionalize them. We investigated the role of a polymer coating made of PBS on silica beads. This material has been originally designed as a model cohesive granular material, whose cohesion can be finely (…)
  • Séminaire PMMH – Scott Waitukaitis (IST Austria)
    Vendredi 22 novembre de 11h00 à 12h00 - Salle réunion PMMH 1
    
  • Séminaire PMMH – Scott Waitukaitis (IST Austria)
    Vendredi 22 novembre 2024 de 11h00 à 12h00 - Salle réunion PMMH 1
    
  • Séminaire PMMH - Hannah Allen (LSCE, CEA Saclay)
    Vendredi 15 novembre 2024 de 11h00 à 12h00 - Salle réunion PMMH 1
    Monitoring atmospheric fossil fuel emissions using radiocarbon and global atmospheric simulations with a transport and inverse modeling system
    Independent monitoring and apportioning of CO2 emissions is crucial for the verification of greenhouse gas reductions targeted by international agreements designed for climate change mitigation and adaptation. Radiocarbon (14C), found as a fractional isotope of CO2, can be used as a key tracer for fossil-derived (…)
  • Séminaire PMMH – Claude Delangle (Conservatoire National Supérieur de Musique et de Danse de Paris)
    Vendredi 18 octobre de 11h00 à 12h00 - Salle réunion PMMH 1
    L'instrument de musique : partenaire ou adversaire ? La recherche de la phase.
    Près de quarante années de participation à la R&D chez le fabricant de saxophones Henri Selmer Paris m'ont aidé à développer le concept de « culture du son ». Mon enseignement au CNSMDP s'est progressivement détaché d'une obsession de l'esthétique pour se recentrer sur la notion de phase, c'est à dire de la (…)
  • Séminaire PMMH – Claude Delangle (Conservatoire National Supérieur de Musique et de Danse de Paris)
    Vendredi 18 octobre 2024 de 11h00 à 12h00 - Salle réunion PMMH 1
    L'instrument de musique : partenaire ou adversaire ? La recherche de la phase.
    Près de quarante années de participation à la R&D chez le fabricant de saxophones Henri Selmer Paris m'ont aidé à développer le concept de « culture du son ». Mon enseignement au CNSMDP s'est progressivement détaché d'une obsession de l'esthétique pour se recentrer sur la notion de phase, c'est à dire de la (…)
  • Séminaire PMMH – Martin Brandenbourger (IRPHÉ, Marseille)
    Vendredi 11 octobre de 11h00 à 12h00 - Salle réunion PMMH 1
    Towards models of fluid transport in active vascular networks
    Liquid flows in vascular networks are among the most effective ways to transport matter and information for life. From animals to fungi, the most adaptable organisms utilize vascular networks with vessels that actively contract upon local sensing of stimuli instead of central pumping mechanisms. These (…)
  • Séminaire PMMH – Martin Brandenbourger (IRPHÉ, Marseille)
    Vendredi 11 octobre 2024 de 11h00 à 12h00 - Salle réunion PMMH 1
    Towards models of fluid transport in active vascular networks
    Liquid flows in vascular networks are among the most effective ways to transport matter and information for life. From animals to fungi, the most adaptable organisms utilize vascular networks with vessels that actively contract upon local sensing of stimuli instead of central pumping mechanisms. These (…)
  • Séminaire PMMH – Céline Gabillet (École Navale de Brest)
    Vendredi 4 octobre de 11h00 à 12h00 - Salle réunion PMMH 1
    
  • Séminaire PMMH – Céline Gabillet (École Navale de Brest)
    Vendredi 4 octobre 2024 de 11h00 à 12h00 - Salle réunion PMMH 1
    
  • Séminaire PMMH - Souhayl Sadik from (Aarhus University)
    Vendredi 27 septembre de 11h00 à 12h00 - Salle réunion PMMH 1
    Nonlinear Anisotropic Viscoelasticity
    In this work, we revisit the mathematical foundations of nonlinear viscoelasticity. We study the un- derlying geometry of viscoelastic deformations, and in particular, the intermediate configuration. Starting from the direct multiplicative decomposition of the deformation gradient F = FeFv, into elastic and (…)
  • Séminaire PMMH - Souhayl Sadik from (Aarhus University)
    Vendredi 27 septembre 2024 de 11h00 à 12h00 - Salle réunion PMMH 1
    Nonlinear Anisotropic Viscoelasticity
    In this work, we revisit the mathematical foundations of nonlinear viscoelasticity. We study the un- derlying geometry of viscoelastic deformations, and in particular, the intermediate configuration. Starting from the direct multiplicative decomposition of the deformation gradient F = FeFv, into elastic and (…)
  • Séminaire PMMH - Avin Babataheri (Ladhyx)
    Vendredi 20 septembre de 11h00 à 12h00 - Salle réunion PMMH 1
    1D confinement controls cell shape and migration
    Pericytes are mural cells of the microvasculature, they wrap around small vessels, support the vessels mechanically and participate in blood flow regulation. Pericytes are distinguished by two main characteristics ; first their distinct morphology, which has been likened to a “bump on a log”, as they present long (…)
  • Séminaire PMMH - Avin Babataheri (Ladhyx)
    Vendredi 20 septembre 2024 de 11h00 à 12h00 - Salle réunion PMMH 1
    1D confinement controls cell shape and migration
    Pericytes are mural cells of the microvasculature, they wrap around small vessels, support the vessels mechanically and participate in blood flow regulation. Pericytes are distinguished by two main characteristics ; first their distinct morphology, which has been likened to a “bump on a log”, as they present long (…)
  • Séminaire PMMH - François Graner (Laboratoire MSC & Université Paris-Cité))
    Vendredi 13 septembre 2024 de 11h00 à 12h00 - Salle réunion PMMH 1
    Should we forbid scientific research ?
    Economic growth is not sustainable. Research, which is one of the pillars of economic growth, contributes to current environmental disasters and social inequalities. Conversely, research is often presented as part of the solution : many institutions and actors call for more funding
    of research to fuel so-called (…)
  • Séminaire PMMH - Nino Araújo (Universidade de Lisboa, Portugal)
    Vendredi 5 juillet de 11h00 à 12h00 - Salle réunion PMMH 1
    Self-folding kirigami at the microscale
    Three-dimensional shells can be obtained from the spontaneous self-folding of two-dimensional templates of interconnected panels, called nets. To design self-folding, one first needs to identify what are the nets that fold into the desired structure. In principle, different nets can fold into the same (…)
  • Séminaire PMMH - Nino Araújo (Universidade de Lisboa, Portugal)
    Vendredi 5 juillet 2024 de 11h00 à 12h00 - Salle réunion PMMH 1
    Self-folding kirigami at the microscale
    Three-dimensional shells can be obtained from the spontaneous self-folding of two-dimensional templates of interconnected panels, called nets. To design self-folding, one first needs to identify what are the nets that fold into the desired structure. In principle, different nets can fold into the same (…)
  • Séminaire PMMH - Alexis Mérigaud - IFPEN
    Vendredi 28 juin 2024 de 11h00 à 12h00 - Salle réunion PMMH 1
    Predicting ocean waves in real-time
    Ocean waves are usually predicted in a meteorological sense, from hourly to weekly time scales. In this talk, we cover the much lesser-known topic of real-time ocean wave forecasting, which consists in predicting accurately the second-by-second motion of the sea surface, a ship or another floating structure, up to (…)
  • Séminaire PMMH - Ko Okumura (Ochanomizu University, Tokyo)
    Vendredi 14 juin de 11h00 à 12h00 - Salle réunion PMMH 1
    A hydrodynamic analog of critical phenomena : an uncountably infinite number of universality classes
    When a solid object starts falling into a viscous fluid from air-liquid interface, air is entrained into the liquid and eventually detaches from the solid. Such detachment could occur with or without topological change. Recently, it was found that the former case (i.e., breakup, a form of singular transitions) is (…)
  • Séminaire PMMH - Ko Okumura (Ochanomizu University, Tokyo)
    Vendredi 14 juin 2024 de 11h00 à 12h00 - Salle réunion PMMH 1
    A hydrodynamic analog of critical phenomena : an uncountably infinite number of universality classes
    When a solid object starts falling into a viscous fluid from air-liquid interface, air is entrained into the liquid and eventually detaches from the solid. Such detachment could occur with or without topological change. Recently, it was found that the former case (i.e., breakup, a form of singular transitions) is (…)
  • Séminaire PMMH - Frederic Dias - University College Dublin
    Vendredi 7 juin 2024 de 11h00 à 12h00 - Salle réunion PMMH 1
    Le projet HIGHWAVE sur le déferlement des vagues et sa station de mesure et d'observation en Irlande
    Situé aux frontières de l'ingénierie côtière et océanique, de la science du systeme Terre, des statistiques et de la mécanique des fluides, le projet HIGHWAVE propose une approche interdisciplinaire pour mieux comprendre le déferlement des vagues. Le but ultime du projet est de fournir un nouveau modèle de vagues (…)
  • Séminaire PMMH - François Petrelis (ENS)
    Vendredi 31 mai 2024 de 11h00 à 12h00 - Salle réunion PMMH 1
    Earthquake statistical properties : an explanation for the distribution of magnitude and for the existence of aftershocks
    Earthquakes in nature follow several statistical properties. In particular, the distribution of energy released by an earthquake (Gutenberg-Richter's law) and the frequency of aftershocks after a large event (Omori's law) are both power-laws. By studying several earthquake models, we have shown that the (…)
  • Séminaire PMMH - Etienne Jambon-Puillet, LadhyX
    Vendredi 24 mai 2024 de 11h00 à 12h00 - Salle réunion PMMH 1
    Pendant drops on the underside of wet surfaces : growth, motion and solidification
    Pendant drops spontaneously appear on the underside of wet surfaces through the Rayleigh-Taylor instability. Due to their detrimental effect on coatings and their tendency to drip, several strategies have been developed to avoid their formation and rationalized with linear stability analysis. I will first briefly (…)
  • Séminaire PMMH - Louis-Alexandre Couston (ENS Lyon)
    Vendredi 17 mai de 11h00 à 12h00 - Salle réunion PMMH 1
    What we know and don't know about the ocean circulation and ice melting around Antarctica
    The Antarctic ice sheet is losing mass increasingly rapidly and could contribute several tens of centimetres of sea-level rise by 2100. In this presentation I will review our understanding of the southern ocean circulation, which (we know) is controlling ice melting around Antarctica and driving the retreat of (…)
  • Séminaire PMMH - Louis-Alexandre Couston (ENS Lyon)
    Vendredi 17 mai 2024 de 11h00 à 12h00 - Salle réunion PMMH 1
    What we know and don't know about the ocean circulation and ice melting around Antarctica
    The Antarctic ice sheet is losing mass increasingly rapidly and could contribute several tens of centimetres of sea-level rise by 2100. In this presentation I will review our understanding of the southern ocean circulation, which (we know) is controlling ice melting around Antarctica and driving the retreat of (…)
  • Séminaire PMMH - Karen Mulleners (EPFL)
    Vendredi 3 mai de 11h00 à 12h00 - Salle réunion PMMH 1
    Getting smarter overnight : how automated experiments help unwind unsteady vortex-dominated flows
    Abstract : Typical unsteady vortex-dominated flows like those involved in bio-inspired propulsion, unsteady airfoil separation, and vortex-induced vibrations can be prohibitively expensive to simulate and impossible to measure comprehensively. They are inherently non-linear, often involve moving boundaries, (…)
  • Séminaire PMMH - Karen Mulleners (EPFL)
    Vendredi 3 mai 2024 de 11h00 à 12h00 - Salle réunion PMMH 1
    Getting smarter overnight : how automated experiments help unwind unsteady vortex-dominated flows
    Abstract : Typical unsteady vortex-dominated flows like those involved in bio-inspired propulsion, unsteady airfoil separation, and vortex-induced vibrations can be prohibitively expensive to simulate and impossible to measure comprehensively. They are inherently non-linear, often involve moving boundaries, (…)
  • Séminaire PMMH - Sara Puijalon (LEHNA – CNRS, Université Claude Bernard Lyon 1)
    Vendredi 26 avril de 11h00 à 12h00 - Salle réunion PMMH 1
    Interactions between submerged aquatic vegetation and flow : applications of ecohydraulics and biomechanics to ecological questions
    Interactions between submerged aquatic vegetation and flow in rivers and streams are complex. Flowing water induces hydrodynamic stress on aquatic plants colonizing these habitats, which can, in some cases, cause mechanical failures such as breakage and uprooting. Additionally, aquatic plant beds have a significant (…)
  • Séminaire PMMH - Sara Puijalon (LEHNA – CNRS, Université Claude Bernard Lyon 1)
    Vendredi 26 avril 2024 de 11h00 à 12h00 - Salle réunion PMMH 1
    Interactions between submerged aquatic vegetation and flow : applications of ecohydraulics and biomechanics to ecological questions
    Interactions between submerged aquatic vegetation and flow in rivers and streams are complex. Flowing water induces hydrodynamic stress on aquatic plants colonizing these habitats, which can, in some cases, cause mechanical failures such as breakage and uprooting. Additionally, aquatic plant beds have a significant (…)
  • Séminaire PMMH - Benjamin Guiselin - ENS Lyon
    Vendredi 12 avril 2024 de 11h00 à 12h00 - Salle réunion PMMH 1
    Emergence of spontaneous collective oscillations in dense Human crowds
    Massive crowd gatherings form some of the most dangerous and unpredictable environments [1]. However, we lack quantitative characterizations of their dynamics and the heuristic principles used to explain and predict their motion remain elusive. In this talk, I will present our analysis of the dynamics of thousands (…)
  • Séminaire PMMH - Benjamin Guiselin - ENS Lyon
    Vendredi 12 avril de 11h00 à 12h00 - Salle réunion PMMH 1
    Emergence of spontaneous collective oscillations in dense Human crowds
    Massive crowd gatherings form some of the most dangerous and unpredictable environments [1]. However, we lack quantitative characterizations of their dynamics and the heuristic principles used to explain and predict their motion remain elusive. In this talk, I will present our analysis of the dynamics of thousands (…)
  • Séminaire PMMH - Olivier Plé (LOCIE-CNRS)
    Vendredi 5 avril de 11h00 à 12h00 - Salle réunion PMMH 1
    Rammed earth : A complex medium
    Rammed earth is a complex material which is attractive nowadays in construction because of its small environmental footprint. However, this material has specific characteristics, especially : its sensitivity to water, its low mechanical static capacity but a fairly good seismic performance, its high thermal (…)
  • Séminaire PMMH - Olivier Plé (LOCIE-CNRS)
    Vendredi 5 avril 2024 de 11h00 à 12h00 - Salle réunion PMMH 1
    Rammed earth : A complex medium
    Rammed earth is a complex material which is attractive nowadays in construction because of its small environmental footprint. However, this material has specific characteristics, especially : its sensitivity to water, its low mechanical static capacity but a fairly good seismic performance, its high thermal (…)
  • Séminaire PMMH - Alex Hansen (NTNU Norvège)
    Vendredi 29 mars de 11h00 à 12h00 - Salle réunion PMMH 1
    Séminaire d'Alex Hansen (NTNU, Trondheim, Norvège)
    The co-moving velocity, a new concept in immiscible two-phase flow in porous media Alex Hansen PoreLab, Department of Physics, NTNU, Trondheim, Norway Since 1936, relative permeability theory has been the leading description of immiscible two-phase flow in porous media at scales much larger than the pore (…)
  • Séminaire PMMH - Alex Hansen (NTNU Norvège)
    Vendredi 29 mars 2024 de 11h00 à 12h00 - Salle réunion PMMH 1
    Séminaire d'Alex Hansen (NTNU, Trondheim, Norvège)
    The co-moving velocity, a new concept in immiscible two-phase flow in porous media Alex Hansen PoreLab, Department of Physics, NTNU, Trondheim, Norway Since 1936, relative permeability theory has been the leading description of immiscible two-phase flow in porous media at scales much larger than the pore (…)
  • Séminaire PMMH - Dominic Vella (University of Oxford)
    Vendredi 22 mars de 11h00 à 12h00 - Salle réunion PMMH 1
    Drops with deformable boundaries : Flat tops, Locomotion and Ageing
    A liquid droplet placed on a rigid, planar surface has a captivating simplicity : its surface is a spherical cap and remains in equilibrium. In this talk, I'll show that the addition of a deformable boundary leads to a range of new phenomena : evaporating droplets with an elastic skin may develop flat tops, while (…)
  • Séminaire PMMH - Dominic Vella (University of Oxford)
    Vendredi 22 mars 2024 de 11h00 à 12h00 - Salle réunion PMMH 1
    Drops with deformable boundaries : Flat tops, Locomotion and Ageing
    A liquid droplet placed on a rigid, planar surface has a captivating simplicity : its surface is a spherical cap and remains in equilibrium. In this talk, I'll show that the addition of a deformable boundary leads to a range of new phenomena : evaporating droplets with an elastic skin may develop flat tops, while (…)
  • Séminaire PMMH - Jacques Fattaccioli (PASTEUR, ENS)
    Vendredi 15 mars de 11h00 à 12h00 - Salle réunion PMMH 1
    Bacteria on high fat diets cooperate to stay fit
    During the consumption of alkanes, Alcanivorax borkumensis, a bacteria commonly found in oil spill areas, form a biofilm around oil droplets to consume them. The role this plays during degradation remains unclear. Using in-situ microfluidic tracking, we identify a shift in biofilm morphology that depends on (…)
  • Séminaire PMMH - Jacques Fattaccioli (PASTEUR, ENS)
    Vendredi 15 mars 2024 de 11h00 à 12h00 - Salle réunion PMMH 1
    Bacteria on high fat diets cooperate to stay fit
    During the consumption of alkanes, Alcanivorax borkumensis, a bacteria commonly found in oil spill areas, form a biofilm around oil droplets to consume them. The role this plays during degradation remains unclear. Using in-situ microfluidic tracking, we identify a shift in biofilm morphology that depends on (…)
  • Séminaire PMMH - Min-Hui LI (Chimie ParisTech )
    Vendredi 8 mars de 11h00 à 12h00 - Salle réunion PMMH 1
    Electroactive Bi-functional Liquid Crystal Elastomer Actuators
    Liquid crystal elastomers (LCEs) show promising potentials as smart actuators, for example, those contracting/expanding linearly like mammalian muscles.[1] Direct heating and light illumination are the most used activation mode in LCE actuators because LCEs are based on thermotropic or phototropic liquid (…)
  • Séminaire PMMH - Min-Hui LI (Chimie ParisTech )
    Vendredi 8 mars 2024 de 11h00 à 12h00 - Salle réunion PMMH 1
    Electroactive Bi-functional Liquid Crystal Elastomer Actuators
    Liquid crystal elastomers (LCEs) show promising potentials as smart actuators, for example, those contracting/expanding linearly like mammalian muscles.[1] Direct heating and light illumination are the most used activation mode in LCE actuators because LCEs are based on thermotropic or phototropic liquid (…)
  • Séminaire PMMH - Bérengère Abou (MSC, Univ. Paris Cité)
    Vendredi 1er mars de 11h00 à 12h00 - Salle réunion PMMH 1
    Intracellular rheology of red blood cells
    The characterisation of erythrocyte stiffness and its heterogeneity in a blood sample is a key parameter for the description of erythrocyte pathologies. I will present a method for investigating the intracellular rheology of red blood cells and the heterogeneity of the population using molecular rotors. These are (…)
  • Séminaire PMMH - Bérengère Abou (MSC, Univ. Paris Cité)
    Vendredi 1er mars 2024 de 11h00 à 12h00 - Salle réunion PMMH 1
    Intracellular rheology of red blood cells
    The characterisation of erythrocyte stiffness and its heterogeneity in a blood sample is a key parameter for the description of erythrocyte pathologies. I will present a method for investigating the intracellular rheology of red blood cells and the heterogeneity of the population using molecular rotors. These are (…)
  • Séminaire PMMH - Jon Otto Fossum (Dept of Physics , NTNU, Trondheim, Norway)
    Vendredi 16 février de 11h00 à 12h00 - Salle réunion PMMH 1
    Clay minerals as 2D natural nanomaterials for sustainable applications
    Clay minerals are among the most abundant and sustainable on earth, and due to this and their low-cost they are found in many traditional applications that exploit their physical and chemical properties, including their mechanical stability, their non-toxicity and in effect their underlying 2D nanoscale character. (…)
  • Séminaire PMMH - Jon Otto Fossum (Dept of Physics , NTNU, Trondheim, Norway)
    Vendredi 16 février 2024 de 11h00 à 12h00 - Salle réunion PMMH 1
    Clay minerals as 2D natural nanomaterials for sustainable applications
    Clay minerals are among the most abundant and sustainable on earth, and due to this and their low-cost they are found in many traditional applications that exploit their physical and chemical properties, including their mechanical stability, their non-toxicity and in effect their underlying 2D nanoscale character. (…)
  • Séminaire PMMH - Thomas Salez (LOMA, Bordeaux)
    Vendredi 9 février 2024 de 11h00 à 12h00 - Salle réunion PMMH 1
    Brownian motion in confinement
    Brownian motion near interfaces is a canonical situation, encountered from fundamental biophysics to nanoscale engineering. Using a combination of experimental, theoretical and numerical methods, we study the thermally-induced random tridimensional trajectories of individual microparticles, within salty aqueous (…)
  • Séminaire PMMH - Sophie Marbach (Phenix, Sorbonne Université)
    Vendredi 2 février 2024 de 11h00 à 12h00 - Salle réunion PMMH 1
    The Countoscope : Measuring Dynamics by Counting Particles in Boxes
    Any imaging technique is limited by its field of view. As objects or particles move in and out of the observation field, tracking their motion, especially over long periods, becomes challenging. In addition, available analysis techniques face challenges reconstructing trajectories in dense and heterogeneous systems (…)
  • Séminaire PMMH - Sylvain Lefebvre (INRIA Nancy)
    Vendredi 26 janvier 2024 de 11h00 à 12h00 - Salle réunion PMMH 1
    Controlling the appearance and deformation of 3D printed objects.
    This seminar will focus on how to design shapes and plates that exhibit specific behaviors thanks to a precise control of their fabrication process. Specifically, by orienting the deposition trajectories of a fused filament 3D printer, we introduce anisotropies that impact the observed properties of the final (…)
  • Séminaire PMMH, Joshua Dijksman (UVA)
    Vendredi 19 janvier de 11h00 à 12h00 - Salle réunion PMMH 1
    Covalent adaptable polymer networks provide mechanical tunability via molecular and mesoscopic lengthscales
    Polymeric materials are ubiquitous in society but also present a large source of waste. There is an ongoing search for polymeric materials that can be better tuned and recycled. One class of polymers that came into the spotlight for this purpose are so-called covalent adaptable polymer networks. Such polymer (…)
  • Séminaire PMMH, Joshua Dijksman (UVA)
    Vendredi 19 janvier 2024 de 11h00 à 12h00 - Salle réunion PMMH 1
    Covalent adaptable polymer networks provide mechanical tunability via molecular and mesoscopic lengthscales
    Polymeric materials are ubiquitous in society but also present a large source of waste. There is an ongoing search for polymeric materials that can be better tuned and recycled. One class of polymers that came into the spotlight for this purpose are so-called covalent adaptable polymer networks. Such polymer (…)
  • Séminaire PMMH - Santiago Benevides (Universidad Politécnica de Madrid)
    Vendredi 12 janvier 2024 de 11h00 à 12h00 - Salle réunion PMMH 1
    Uncovering complex behavior in turbulence and sediment transport through simplified models
    Although the dynamics of a turbulent fluid and of grains being transported downriver might not have much in common, it's the qualities they share that make them challenging subjects to study. Both contain many interacting components and nonlinearities, producing a chaotic, multi-scale, out-of-equilibrium system (…)

• 2023

  • Séminaire PMMH - M. Mungan (Institute of Biological Physics, University of Cologne)
    Vendredi 22 décembre 2023 de 11h00 à 12h00 - Salle réunion PMMH 1
    Memory Formation in Driven Disordered Systems - Dead or Alive
    Memory formation and ageing are abundant in many soft matter systems. The disorder underlying these systems gives rise to a rich energy landscape, consisting of a large number of metastable states. These landscapes are accompanied by a plethora of pathways, along which such systems can evolve when exposed to a (…)
  • Séminaire PMMH - M. Mungan (Institute of Biological Physics, University of Cologne)
    Vendredi 22 décembre 2023 de 11h00 à 12h00 - Salle réunion PMMH 1
    Memory Formation in Driven Disordered Systems - Dead or Alive
    Memory formation and ageing are abundant in many soft matter systems. The disorder underlying these systems gives rise to a rich energy landscape, consisting of a large number of metastable states. These landscapes are accompanied by a plethora of pathways, along which such systems can evolve when exposed to a (…)
  • Séminaire PMMH - Arthur Alexandre (EPFL)
    Vendredi 15 décembre 2023 de 11h00 à 12h00 - Salle réunion PMMH 1
    Dispersion in heterogeneous media : how boundaries shape transport properties
    Identifying transport properties of tracer particles in heterogeneous media at large time and length scales has applications in wide range of physical systems including microfluidics, hydrology, chemical engineering or soft matter. The effective diffusivity is a crucial input for problems of mixing, sorting, (…)
  • Séminaire PMMH - Mathilde Reyssat, Gulliver (ESPCI)
    Vendredi 8 décembre 2023 de 11h00 à 12h00 - Salle réunion PMMH 1
    Swimming droplets under confinement
    Artificial micro-swimmers have recently become a central field of research in soft-matter. A very promising and original type of swimmer developed in our team, consists in pure water droplet swimming in an oil phase containing micelles of surfactant. The droplet's activity comes from the formation of swollen (…)
  • Séminaire PMMH - Emanuela Del Gado (Georgetown University)
    Vendredi 1er décembre 2023 de 11h00 à 12h00 - Salle réunion PMMH 1
    Memory of shear flow in soft jammed materials
    Cessation of flow in simple yield stress fluids results in a complex stress relaxation process that depends on the preceding flow conditions and leads to finite residual stresses. By complementing experiments with numerical simulations we gain new insight into the microscopic origin of these phenomena for jammed (…)
  • Séminaire PMMH - François Peaudecerf, ETH Zürich
    Vendredi 24 novembre 2023 de 11h00 à 12h00 - Salle réunion PMMH 1
    Wall entrapment enhances bacterial chemotactic response to deposited aerosols in the microlayer
    The sea surface microlayer is the thin layer of water separating the atmosphere from marine waters below. This typically half-millimeter-deep laminar layer mediates all gas exchange and receives all material deposited from the atmosphere, such as aerosol particles, before any transfer to deeper water can occur. The (…)
  • Séminaire PMMH - Ruben Zakine (LadHyX, Ecole Polytechnique)
    Vendredi 17 novembre 2023 de 11h00 à 12h00 - Salle réunion PMMH 1
    Socioeconomic agents as active matter and nucleation paths in active field theories
    In this seminar, we will tackle two subjects whose common thread is active matter. In a first part, I will focus on a socio-economic occupation model in the spirit of the Sakoda-Schelling model, historically introduced to shed light on segregation dynamics among human groups. For a large class of decision rules (…)
  • Séminaire PMMH - Manuel Lorite Diez (Universidad de Granada)
    Vendredi 10 novembre 2023 de 11h00 à 12h00 - Salle réunion PMMH 1
    Three-dimensional coupling between freely falling bodies and their 3D wakes
    Freely falling bodies in an initially quiescent fluid can exhibit many different path patterns depending on body geometry, size and weight. The characteristics of a given path are known to be strongly linked to the wake induced by the body. The study of path-wake interaction is relevant for many problems in (…)
  • Séminaire PMMH - Francisco Goio Castro (IPPT, Graz, Austria)
    Vendredi 20 octobre 2023 de 11h00 à 12h00 - Salle réunion PMMH 1
    A Smoothed Particle Hydrodynamics Approach to Deformable Granular Materials
    The phenomenology of granular materials results from a complex interplay between various properties of their constituent elements. Shape, friction, size distribution and softness can all significantly affect the rheology of granular materials, and disentangling the individual contributions of these properties is (…)
  • Séminaire PMMH - Jérôme Crassous (Institut de Physique de Rennes)
    Vendredi 13 octobre 2023 de 11h00 à 12h00 - Salle réunion PMMH 1
    Filer et nouer, une histoire de friction
    Les objets souples et très allongés peuvent s'assembler de multiples manières pour former des structures aussi diverses qu'un fil de laine, des tissus ou tricots, ou encore des nœuds. Nous discuterons durant ce séminaire le rôle clé que jouent les forces de friction dans la stabilité de ces objets. Dans un premier (…)
  • Séminaire PMMH - Valérie Vidal (ENS Lyon)
    Vendredi 6 octobre 2023 de 11h00 à 12h00 - Salle réunion PMMH 1
    From strange behavior to catastrophic events : A story of fluid migration in particle-laden fluids
    "Work on problems you most enjoy. Strange things can happen on the way." This sentence from Walter Munk, world-renowned oceanographer (UCSD), may apply for all fields of science. In this talk, we will see that it is definitely true when working with fluid injection and migration in particle-laden fluids. Based on (…)
  • Séminaire PMMH - Eric Herbert (UPC)
    Vendredi 29 septembre 2023 de 11h00 à 12h00 - Salle réunion PMMH 1
    
  • Séminaire PMMH - Stefano Aime (C3M, ESPCI)
    Vendredi 22 septembre 2023 de 11h00 à 12h00 - Salle réunion PMMH 1
    Everything flows… but how ? A unified state diagram for the yielding transition of soft glassy materials
    “Everything flows…” could have said the Philosopher opening the fridge for breakfast. Indeed, soft glassy materials such as foams, creams, butter and mayonnaise can flow if we shake, push or spread them, while they stay firm and retain their shape like solids when we stop applying an external force. Such (…)
  • Séminaire PMMH - Véronique Dansereau (ISTerre, Grenoble)
    Vendredi 15 septembre 2023 de 11h00 à 12h00 - Salle réunion PMMH 1
    
  • Séminaire PMMH - Gilles Montambaux (LPS, Orsay)
    Vendredi 23 juin 2023 de 11h00 à 12h00 - Salle réunion PMMH 1
    Comment l'eau est arrivée à Versailles : pièce en cinq actes
    Comment l'eau est arrivée aux fontaines du château de Versailles ? Amateur passionné par cette question, j'ai exploré les vestiges des rigoles et des aqueducs, aériens ou souterrains, presque intacts, souvent méconnus et parfois insolites. Leur conception utilisait des techniques élaborées par quelques-uns des plus (…)
  • Séminaire PMMH - Céline Gabillet, Ecole Navale Brest & ENSAM
    Vendredi 16 juin 2023 de 11h00 à 12h00 - Salle réunion PMMH 1
    Les bulles et l'hydrodynamique navale
    De nombreuses bulles sont présentes dans l'océan, en particulier dans la couche supérieure. En s'accumulant dans les zones d'écoulement de basse pression, les bulles peuvent avoir un impact sur les structures marines immergées à faible profondeur, telles que les systèmes propulsifs et les systèmes d'énergies (…)
  • Séminaire PMMH - Orencio Duran (Univ. Texas)
    Vendredi 9 juin 2023 de 11h00 à 12h00 - Salle réunion PMMH 1
    Hydrodynamic Origin of Terrestrial “Impact” Ripples
    Wind-blown sand surfaces on Earth, Mars, and other planetary bodies are covered by multiscale bedforms. The long-standing consensus has been that meter- to kilometer-scale dunes and decimeter-scale ripples on Earth emerge via two distinct physical mechanisms. Dunes evolve from a flat sand bed due to a hydrodynamic (…)
  • Séminaire PMMH - Alain Goriely, University of Oxford
    Vendredi 2 juin 2023 de 11h00 à 12h00 - Salle réunion PMMH 1
    From neurons and sunflowers to elephant trunks : the fascinating dynamics of smart active filaments.
    The world around us, both natural and man-made, is filled with structures that respond to external stimuli and adapt their internal structures to perform specific functions. For example, plants have the ability to sense changes in their environment, such as changes in gravity or light, and modify their shape (…)
  • Séminaire PMMH - Tadeusz Sliwa, Université de Bourgogne
    Vendredi 26 mai 2023 de 11h00 à 12h00 - Salle réunion PMMH 1
    Vie, œuvre et héritage de Joseph Fourier
    Nous fêterons bientôt le bicentenaire des Remarques générales sur les températures du globe terrestre et des espaces planétaires parues aux Annales de Chimie et de Physique en 1824, qui précéda le Mémoire sur la température du globe terrestre et des espaces planétaires en 1827. Joseph Fourier est inconnu du grand (…)
  • Séminaire PMMH - Florian Poydenot (ENS)
    Vendredi 12 mai 2023 de 11h00 à 12h00 - Salle réunion PMMH 1
    A gravity driven inverse cascade controls the size distribution of raindrops
    The size distribution of raindrops follows a particularly simple form, measured over the last century. It is exponential, and the average diameter of raindrops increases with the intensity of the rain. However, this relationship is still poorly explained. The dependence of the mean diameter on intensity implies (…)
  • Séminaire PMMH - Luis Gómez-Nava (Humboldt University of Berlin)
    Vendredi 21 avril 2023 de 11h00 à 12h00 - Salle réunion PMMH 1
    Collective and synchronized motion in animal groups : from sheep to fish
    In this talk I will present two studies of collective behavior observed in animal groups. In the first one, we studied the spontaneous and intermittent collective displacements observed in small groups of sheep (Ovis aries Linnaeus). We performed experiments and noticed that these animals form files while moving as (…)
  • Séminaire PMMH - Christophe Gissinger, LPENS, PSL
    Vendredi 14 avril 2023 de 11h00 à 12h00 - Salle réunion PMMH 1
    Transition sous-critique à la turbulence et transport non-diffusif en astrophysique
    Omniprésente, la turbulence est responsable d'une grande partie des processus de mélange et de transport observés dans la nature et dans les écoulements industriels. La diffusion d'éléments chimiques, le transfert de chaleur ou le transport de moment cinétique au sein d'un écoulement nécessitent donc une bonne (…)
  • Séminaire PMMH - Giuseppe Pucci, Istituto di Nanotecnologia, Calabria
    Vendredi 7 avril 2023 de 11h00 à 12h00 - Salle réunion PMMH 1
    Capillary surfers and spinners on a vibrating liquid bath
    
    /> Capillary surfers are wave-driven particles at a fluid interface that have been recently introduced by Ho et al. (arXiv:2102.11694v3, 2023) and described theoretically by Oza et al. (arXiv:2301.05767, 2023). A surfer is a hydrophobic, millimetric solid particle, the bottom surface of which is pinned to the (…)
  • Séminaire PMMH - Franck Vernerey (Boulder Univ.)
    Vendredi 31 mars 2023 de 11h00 à 12h00 - Salle réunion PMMH 1
    Active Mechanics of Cohesive Biological Aggregates : -The Case of Fire-Ant Swarms-
    A majority of soft living materials owe their complex mechanical behavior to an underlying network structure. Despite this inherent complexity, the physical structure of these materials can often be conceptualized as dynamic physical networks, where nodes and connections are governed by simple rules. An advantage (…)
  • Séminaire PMMH - Angela Limare (IPGP)
    Vendredi 24 mars 2023 de 11h00 à 12h00 - Salle réunion PMMH 1
    The Earth's mantle in a microwave oven : thermal convection driven by a heterogeneous distribution of heat sources
    Past laboratory experiments of thermo chemical convection have dealt with systems involving fluids with different intrinsic densities and viscosities in a Rayleigh-Bénard setup. Although these experiments have greatly improved our understanding of the Earth's mantle dynamics, they neglect a fundamental component of (…)
  • Séminaire PMMH Jean Cappello (ULB, Bruxelles)
    Vendredi 17 mars 2023 de 11h00 à 12h00 - Salle réunion PMMH 1
    Bioinspired shape shifting of liquid-infused ribbed sheets
    At small scales, capillary forces can deform flexible structures. The aggregation of wet hair into bundles is a daily example. With the miniaturization of technologies, these capillary forces have become important in engineering since they can lead to the catastrophic collapse of structures obtained by lithography (…)
  • Séminaire PMMH - Patrice Meunier (IRPHE)
    Vendredi 10 mars 2023 de 11h00 à 12h00 - Salle réunion PMMH 1
    Geoinspired bioreactors : from Earth's precession to stem cell production
    Inspired by the precession of the Earth, a new bladeless mixer has been designed, which consists of a tilted and rotating cylinder. I will first present fundamental studies on the transition to turbulence in such rotating flows. At specific aspect ratios, the resonance of eigen modes creates a strong overturning (…)
  • Séminaire PMMH - Agnese Seminara, University of Genoa
    Vendredi 17 février 2023 de 11h00 à 12h00 - Salle réunion PMMH 1
    A fish with legs and alternation strategies for navigating turbulence
    Sea robins are fishes with sensory appendages (“legs”) that they use to walk and to dig live prey from within the substrate. Their preadation strategy is so effective that they are often followed by other fish trying to steal their prey. I will discuss a set of behavioral experiments suggesting that these animals (…)
  • SEMINAIRE SIMM / PMMH - Cari Dutcher (University of Minnesota)
    Mardi 14 février 2023 de 14h00 à 15h00 - Charpak
    
  • Séminaire PMMH - André Estevez-Torres et Guillaume Sarfati - Laboratoire Jean Perrin, SU et CNRS, Paris
    Vendredi 10 février 2023 de 11h00 à 12h00 - Salle réunion PMMH 1
    La recherche face à l'anthropocène : retour d'expérience du bilan carbone du laboratoire Jean Perrin
    Les années se suivent et ne se ressemblent pas. Les records de température, été comme hiver, ne cessent d'être battus et les conséquences sur les écosystèmes et le vivant sont de plus en plus constatées, qualitativement par tout un chacun, et quantitativement par une science compilée dans les rapports successifs du (…)
  • Séminaire PMMH - Pascal Hersen (Institut Curie)
    Vendredi 3 février 2023 de 11h00 à 12h00 - Salle réunion PMMH 1
    Playing with cellular functions and genetic circuits in real time
    Gene expression plays a central role in the orchestration of cellular processes. In the past years, we have developed several methods to dynamically perturb, manipulate and control genetic circuit and cellular functions in yeast and bacteria using microfluidics and optogenetics. We developed an experimental method (…)
  • Séminaire PMMH - Valentin LAPLAUD (Ladhyx Polytechnique)
    Vendredi 20 janvier 2023 de 11h00 à 12h00 - Salle réunion PMMH 1
    Growth and mechanics of 'plants on a chip'
    Plant growth is a complex process depending in part on the hydraulics and mechanics of the plant cell, that has been modeled by Lockhart (1965) and Ortega (1985) using a description still used today. To study it experimentally at the cell and organism level we developed a microfluidic system to follow several (…)
  • Séminaire PMMH - Bruno Andreotti (LPENS)
    Vendredi 13 janvier 2023 de 11h00 à 12h00 - Salle réunion PMMH 1
    SARS-CoV-2 at the crossroads between epidemiology, biology and aerosol turbulence
    Five epidemic waves have occurred in 2022, with the second autumn wave (BQ.1.1) currently in decline. The 2023 waves will be made up of a soup of sub-variants showing an evolutionary convergence giving them an immune escape in the upper respiratory tract (XBB.1.5 will become the dominant strain in january). I will (…)
  • Séminaire PMMH - Serge Berthier (INSP)
    Vendredi 6 janvier 2023 de 11h00 à 12h00 - Salle réunion PMMH 1
    Natural Photonics
    Photonics, the art of manipulating light, is a relatively recent science. To manage light, to confine it, to slow it down, to orient it... you have to put yourself on its scale, that of the wavelength, that is to say, to create periodic structures (like an electromagnetic wave) who's the period is of the order of a (…)

• 2022

  • Séminaire PMMH - Antoine Gaillard, University of Amsterdam
    Vendredi 16 décembre 2022 de 11h00 à 12h00 - Salle réunion PMMH 1
    Applications and rheological characterisation of polymer solutions
    Polymer solutions, such as saliva or egg white, belong to an important category of non-Newtonian liquids called viscoelastic liquids. Such liquids are known to exhibit a strong “strain-hardening” behaviour in extensional flows, meaning that strong stresses can arise due to the stretching and progressive unravelling (…)
  • Séminaire PMMH - Emmanuèle Helfer (CINAM, Marseille)
    Vendredi 9 décembre 2022 de 11h00 à 12h00 - Salle réunion PMMH 1
    Biomimicking red blood cell filtration by the spleen
    Blood circulation in our vascular system is a physical tour de force. To distribute oxygen throughout the body, Red blood cells (RBCs) continuously travel through the microcirculation, through thin capillaries that are smaller than their size, and are thus highly deformable. Their deformability is periodically (…)
  • Séminaire PMMH - Virgile Thiévenaz INRAE, PIAF, Clermont-Ferrand
    Vendredi 2 décembre 2022 de 11h00 à 12h00 - Salle réunion PMMH 1
    Pinch-off of complex suspensions drops
    Many fluids of our everyday life, from paint to concrete, actually contain solid particles suspended in a liquid. Applications such as inkjet printing require the fragmentation of such suspensions into droplets. Depending on the scale at which one looks at it, a suspension may seem homogeneous or heterogeneous. (…)
  • Séminaire PMMH - Frédéric Moisy (FAST, Univ. Paris Saclay)
    Vendredi 25 novembre 2022 de 11h00 à 12h00 - Salle réunion PMMH 1

    Sillages, vagues et vent

    Le livre "L'impermanence du Monde - La physique de l'éphémère" invite à une promenade à travers quelques phénomènes naturels régis par la physique des fluides : Pourquoi les rivières dessinen(...)
    Sillages, vagues et vent
    Le livre "L'impermanence du Monde - La physique de l'éphémère" invite à une promenade à travers quelques phénomènes naturels régis par la physique des fluides : Pourquoi les rivières dessinent-elles des méandres ? D'où viennent les lignes lumineuses au fond des piscines ? Combien de temps faut-il pour façonner un (…)

  • Séminaire PMMH - Maylis Landeau IPGP
    Vendredi 18 novembre 2022 de 11h00 à 12h00 - Salle réunion PMMH 1
    Instability, mixing and fragmentation in planetary collisions
    The Earth formed by high-energy collisions between planetary embryos. I will present laboratory experiments on the fluid dynamics of these collisions. I will show that the impact of a liquid volume onto a liquid pool reproduces the cratering observed in numerical simulations and at the surface of planets. Unlike (…)
  • Séminaire PMMH - Sergei Nechaev (LPTMS, CNRS - Université Paris-Saclay)
    Vendredi 21 octobre 2022 de 11h00 à 12h00 - Salle réunion PMMH 1
    Anomalous scaling in stretching of a fractal polymer around a disc
    While stretching of a polymer along a flat surface is hardly different from the classical Pincus problem of pulling chain ends in free space, the role of curved geometry in conformational statistics of the stretched chain is an exciting open question. We use scaling analysis and computer simulations to examine [1] (…)
  • Séminaire PMMH - Laurent Seuront (LOG, Wimereux))
    Vendredi 14 octobre 2022 de 11h00 à 12h00 - Salle réunion PMMH 1
    The Behavioral Mandala : a new step towards the understanding of the behavioural complexity behind invertebrates and vertebrates foraging strategies
    Movement is a fundamental characteristic of life. It determines the fate of individuals through its influence on reproduction, feeding and survival, and ultimately populations, communities, and ecosystems. An important open question lies in the quantification of both the geometric and stochastic components of (…)
  • Séminaire PMMH - Lydie STARON (Institut d'Alembert)
    Vendredi 7 octobre 2022 de 11h00 à 12h00 - Salle réunion PMMH 1
    Cohesion-induced weakening ? Clues from the failure of a cohesive granular step
    The failure of 2D numerical cohesive granular steps collapsing under gravity is simulated for a large range of cohesion. Focusing on the cumulative displacement of the grains, we establish a sensible criterion for capturing the failure characteristics. We are able to locate the failure in time and to identify the (…)
  • Séminaire PMMH - (Benjamin Favier, CNRS, IRPHE, Marseille)
    Vendredi 30 septembre 2022 de 11h00 à 12h00 - Salle réunion PMMH 1
    Interactions between thermal convection and a melting front
    A pure and incompressible material is confined between two plates such that it is heated from below and cooled from above. When its melting temperature is comprised between these two imposed temperatures, an interface separating liquid and solid phases appears. Depending on the initial conditions, freezing or (…)
  • Séminaire PMMH - Blaise Delmotte, LadHyX
    Vendredi 23 septembre 2022 de 11h00 à 12h00 - Salle réunion PMMH 1
    Unexpected trapping of active particles and efficient sorting of flexible fibers with obstacles
    The motion of active or elastic particles through structured environments is ubiquitous in nature and industrial applications. Their dynamics result from the complex interplay between internal elastic stresses, activity, contact forces, thermal fluctuations and hydrodynamic interactions with the obstacles. In (…)
  • Séminaire PMMH - Leonid Berlyand, Penn State
    Vendredi 16 septembre 2022 de 11h00 à 12h00 - Salle réunion PMMH 1
    
  • Séminaire PMMH - M.C. Jullien, U. Rennes 1
    Vendredi 9 septembre 2022 de 11h00 à 12h00 - Salle réunion PMMH 1
    Phase separation of an ionic liquid mixture assisted by a temperature gradient
    Ionic liquids have remarkable properties and are commonly harnessed for green chemistry, lubrication, and energy applications. In this presentation, we report a thermoresponsive ionic liquid (IL) solution which has the property of phase separating above a critical temperature, an interesting feature for the (…)
  • Séminaire PMMH - Anshuman Pal, University of Chicago, US
    Vendredi 8 juillet 2022 de 11h00 à 12h00 - Salle réunion PMMH 1
    Faceted wrinkling at a contracted curved boundary : isometry and hysteretic wavelength selection
    Thin elastic sheets are fascinating because they can show a rich variety of patterns and multi-scale physics from the interplay of only a few basic ingredients, viz., stretching, bending, and geometry. In this talk, through the behaviour of a simple system of a circular annulus contracted at the inner boundary, we (…)
  • Séminaire PMMH - Gilles Tessier (Sorbonne Univ.)
    Vendredi 1er juillet 2022 de 11h00 à 12h00 - Salle réunion PMMH 1
    Measuring and shaping the phase of light : new tools to study materials and biological systems
    Spatially-resolved techniques to control and image the phase of light have deeply transformed microscopy. In this talk, I will briefly clarify the notion of optical phase and present two phase-sensitive techniques, both offering high sensitivity and 3D capabilities. Using holography, individual magnetic nanorods (…)
  • Séminaire PMMH - Al Crosby (U. Mass. Amherst)
    Vendredi 24 juin 2022 de 11h00 à 12h00 - Salle réunion PMMH 1
    Autonomously Moving and Assembling Soft Matter Systems
    
  • Séminaire PMMH - Maxime Hubert, FAU, Université d'Erlangen-Nürnberg, ALL
    Vendredi 17 juin 2022 de 11h00 à 12h00 - Salle réunion PMMH 1
    Mesoscale strategies of collective transport on deformable liquid interfaces
    Transport at interfaces is crucial in multiple areas of physics and biology and is observed across a wide range of length scales. In the strategies used in such dynamics, the role of hydrodynamic interactions, interface deformations, and the presence of other agents at the interface provide the means to mediate (…)
  • Séminaire PMMH - Ludovic Moreau, ISTerre Grenoble
    Vendredi 10 juin 2022 de 11h00 à 12h00 - Salle réunion PMMH 1
    Analysis of the micro-seismicity in sea ice with deep learning and Bayesian inference. Application to the monitoring of sea ice thickness, density, and mechanical properties
    In the context of global warming, monitoring the thickness and mechanical properties of sea ice is a major challenge in modern climatology. In particular, the heavy logistical constraints of polar environments, and the lack of accuracy of satellite remote monitoring methods, are obstacles to improving climate (…)
  • Séminaire PMMH - Jacques Treiner
    Vendredi 3 juin 2022 de 11h00 à 12h00 - Salle réunion PMMH 1
    Les trajectoires les plus pessimistes du GIEC ne sont pas réalistes : bonne nouvelle ?
    L'anticipation du changement climatique repose en partie sur les scénarios d'émissions de gaz à effet de serre utilisés par le Groupe d'experts intergouvernemental sur l'étude du climat (GIEC). Il apparait que les réserves de combustibles fossiles estimées par le World energy outlook et le Statistical review of (…)
  • Séminaire PMMH - Bruno Moulia (INRAE)
    Vendredi 20 mai 2022 de 11h00 à 12h00 - Salle réunion PMMH 1
    The dimensionless numbers of the shaping of plant axes and crowns through tropism and elasticity : a physicist approach of the biological regulation of plant morphogenesis.
    The shape of plant stems and/or of the whole crown of isolated trees are conspicuous traits of each species, while at the same time-varying a lot depending on the environment in which the plant grew. A major process involved in this shaping is stem tropism, i.e. oriented growth directed by external clues. In plant (…)
  • Séminaire PMMH - Olivier Devauchelle (IPGP, Paris)
    Vendredi 13 mai 2022 de 11h00 à 12h00 - Salle réunion PMMH 1
    Swimming in a wave field
    When a bath of silicon oil vibrates vertically, a droplet of the same oil can bounce indefinitely on its surface [1]. As it does so, it generates a Faraday wave around itself, which then pushes the droplet across the surface. Guided by this wave, the droplet interacts with its own trajectory, with the boundaries, (…)
  • Séminaire PMMH - Alexandre Nicolas (U. Lyon 1)
    Vendredi 22 avril 2022 de 11h00 à 12h00 - Salle réunion PMMH 1
    Physical modelling of pedestrian dynamics : Make your way through the crowd !
    Physics has constantly been pushing back its boundaries, so much so that active systems of biological interest have come under its scrutiny in the past decades. At present, among its outermost interfaces, research into the dynamics of pedestrian crowds aspires to provide physical insight into issues of major (…)
  • Séminaire PMMH - Jens Eggers, U. of Bristol, UK
    Vendredi 15 avril 2022 de 11h00 à 12h00 - Salle réunion PMMH 1
    Theory of bubble tips in strong viscous flows
    A free surface, placed in a strong viscous flow (such that viscous forces overwhelm surface tension), often develops ends with very sharp tips. For example, observe a bubble in a shampoo bottle, turned upside down. We shown that the axisymmetric shape of the ends, non-dimensionalized by the tip curvature,is (…)
  • Séminaire PMMH - Luca Cipelletti (Univ. Montpellier)
    Vendredi 8 avril 2022 de 11h00 à 12h00 - Salle réunion PMMH 1
    
  • Séminaire PMMH - Stefan Catheline (INSERM, Univ. Lyon1)
    Vendredi 1er avril 2022 de 11h00 à 12h00 - Salle réunion PMMH 1
    Wave elastography applied to soft tissues and membrane
    Elastography, sometimes referred as seismology of the human body, is an imaging modality now implemented on medical ultrasound systems, on MRI and recently in optical coherence tomography devices. It allows to measure shear wave speeds within soft tissues and gives a tomography reconstruction of the shear (…)
  • Séminaire PMMH : Raphaël Jeanneret, LPENS
    Vendredi 25 mars 2022 de 11h00 à 12h00 - Salle réunion PMMH 1
    
  • Séminaire PMMH - Arnaud Lazarus (Institut d'Alembert, Sorbonne Université)
    Vendredi 18 mars 2022 de 11h00 à 12h00 - Salle réunion PMMH 1
    New insights on the dynamic stability of time-periodic systems
    Periodically time-varying systems are a class of mathematical problems that underlie many important phenomena and applications in physics, such as parametric instabilities, acoustic tweezers, mass spectrometers and Paul traps or any Floquet engineered systems in Quantum Mechanics. Eventually, the mechanics (…)
  • Séminaire PMMH : Valentin Leroy, MSC, Université de Paris
    Vendredi 11 mars 2022 de 11h00 à 12h00 - Salle réunion PMMH 1
    
  • Séminaire PMMH, Marianne Grognot (LBE - ESPCI)
    Vendredi 11 février 2022 de 11h00 à 12h00 - Salle réunion PMMH 1
    A multiscale chemotaxis assay to unravel how motile bacteria navigate their environment(s)
    Flagellated bacteria swim by rotating one or several flagella ; motility alone results in a random walk, but the flagella's rotation can be influenced by an intracellular sensory system that enables cells to climb or descend chemical gradients, in a process called chemotaxis. Altogether, motility and chemotaxis (…)
  • Séminaire PMMH Jasna Brujic
    Vendredi 4 février 2022 de 11h00 à 12h00 - Salle réunion PMMH 1
    
  • Séminaire PMMH - Julian Talbot (LPTMC, Sorbonne Univ.)
    Vendredi 21 janvier 2022 de 11h00 à 12h00 - Salle réunion PMMH 1
    Statistics and Optimisation of Random Pan Stacking
    The stacking of objects is a familiar operation. For example, a common conundrum of daily life is how to arrange a collection of pots and pans so that the stack will fit in a kitchen cupboard. Because of the varying form and convex nature of the pans, the height will vary depending on the order in which they are (…)

• 2021

  • Séminaire PMMH - Varda Hagh (Univ. of Chicago)
    Vendredi 10 décembre 2021 de 11h00 à 12h00 - Salle réunion PMMH 1
    Free-then-freeze : transient learning degrees of freedom for introducing function in materials
    Many protocols used in material design and training have a common theme : they introduce new “learning'' degrees of freedom, often by relaxing away existing constraints, and then evolve these degrees of freedom based on a rule that leads the material to a desired state at which point these learning degrees of (…)
  • Séminaire PMMH - Edouard Ravier (Université du Mans)
    Vendredi 3 décembre 2021 de 11h00 à 12h00 - Salle réunion PMMH 1
    What can we learn from the experimental modelling of subglacial hydrology ?
    The configuration and evolution of the hydrological system under ice sheets is a key control on ice flow dynamics, erosion, sedimentation and bed deformation. Due to the inaccessibility of the subglacial environment, the understanding of subglacial meltwater drainage and its interaction with the ice and the (…)
  • Séminaire PMMH - Tom Witten (University of Chicago)
    Vendredi 26 novembre 2021 de 11h00 à 12h00 - Salle réunion PMMH 1
    Latent sculpture in a curved crease
    Thin sheets have an inherent tendency to shape themselves. When forced, they seek to deform in a way that bends without stretching. Thus a crushed sheet shapes itself into a crumpled shape made of flat facets bounded by sharp edges. These sharp features fail to avoid stretching : the deformation energy of (…)
  • Séminaire PMMH David Richard (Liphy, Grenoble)
    Vendredi 12 novembre 2021 de 11h00 à 12h00 - Salle réunion PMMH 1
    Using soft excitations to predict and understand plastic flow in disordered solids
    Imposing an external driving, amorphous solids can flow via a succession of plastic rearrangement of localized particles. Numerous numerical and experimental studies have shown that loci of plastic instability in glasses are triggered by spatially localized soft spots in direct analogy with dislocations present in (…)
  • Séminaire PMMH Rémi Carminati (Institut Langevin, ESPCI)
    Vendredi 22 octobre 2021 de 11h00 à 12h00 - Salle réunion PMMH 1
    Seeing through disordered scattering materials
    The propagation of coherent light through a scattering medium produces speckle patterns in reflection and transmission. Despite the apparent randomness of the speckle patterns, a statistical correlation between the reflected and transmitted intensities survives even in the multiple scattering regime. This mutual (…)
  • Séminaire PMMH - Marco Faustini (LCMCP, Sorbonne Univ.)
    Vendredi 15 octobre 2021 de 11h00 à 12h00 - Salle réunion PMMH 1
    Evaporation-driven processes towards photonic colloidal assemblies
    Developing patterning methods to obtain periodic and ordered colloidal films could open perspectives for their utilization in fields ranging from electronics, photonics, microfluidics or dew-harvesting (1). For instance, integrating porous nanoparticles (oxides or Metal-Organic Frameworks) in periodic structures (…)
  • Séminaire PMMH Elim Hong (IBPS, Sorbonne Université)
    Vendredi 24 septembre 2021 de 11h00 à 12h00 - Salle réunion PMMH 1
    The yin yang pathway in the aversive brain
    The habenulo-interpeduncular (Hb-IPN) pathway is an evolutionarily conserved neural pathway mediating diverse pathophysiological behaviors including locomotion, fear, anxiety and nicotine addiction. The left and right habenular nuclei consists of hundreds of neurons that send long axons to project to its target, (…)
  • Séminaire PMMH - Valentina Di Santo (Stockholm University)
    Vendredi 10 septembre 2021 de 11h00 à 12h00 - Salle réunion PMMH 1
    How fishes save energy : exploring biomechanical and physiological performance of locomotion
    Swimming ability has contributed to the evolutionary success of fishes, and its mechanics have been studied extensively across groups. Fishes exhibit an astounding diversity of locomotor behaviors, from classic swimming with their body and fins to jumping, flying, walking, and collective behaviors such as (…)
  • Séminaire PMMH - Hillel Aharoni (Weizmann Inst.)
    Vendredi 3 septembre 2021 de 11h00 à 12h00 - Salle réunion PMMH 1
    On wrinkles, and what they have to do with liquid crystals
    A thin elastic sheet attached to a soft substrate often develops wrinkle patterns when subject to an external forcing or as a result of geometric incompatibility. Such patterns appear spontaneously in a variety of natural systems, ranging from plant tissues to drying paint and from milk skin to human skin. The (…)
  • Séminaire PMMH Lucilla de Arcangelis (Univ. of Naples)
    Vendredi 9 juillet 2021 de 11h00 à 12h00 - Salle réunion PMMH 1
    Acoustic fluidization and remote earthquake triggering
    Lucilla de Arcangelis, Eugenio Lippiello, Massimo Pica Ciamarra Engineering Department University of Campania “Luigi Vanvitelli” Occasionally, a major earthquake can trigger additional events at distances up to 1000 km away. How that happens is a longstanding puzzle since the amplitude of the seismic waves (…)
  • Séminaire PMMH - Eva Adnan Kanso (Univ. of Southern California)
    Vendredi 25 juin 2021 de 11h00 à 12h00 - Salle réunion PMMH 1
    One Fish, Two Fish
    I will tell two short stories of fish hydrodynamics. First, I will argue, based on biological observations and mathematical models, that fish that actively flap their tail in concert with passive hydrodynamic forces can simultaneously improve swimming speed and efficiency. Second, I will show that passive (…)
  • Séminaire PMMH - Thomas Paehtz (Zhejiang University)
    Vendredi 11 juin 2021 de 11h00 à 12h00 - Salle réunion PMMH 1
    Unified model of sediment transport threshold and rate across subaqueous bedload, windblown sand, and windblown snow
    Loose sedimentary grains cover much of the wind-blown (i.e., aeolian) and water-worked (i.e., fluvial) sedimentary surfaces of Earth and other planetary bodies. To predict how such surfaces evolve in response to aeolian and fluvial flows, one needs to understand the rate at which sediment is transported for given (…)
  • Séminaire PMMH - Philippe Gondret (FAST, Univ. Paris-Saclay)
    Vendredi 30 avril 2021 de 11h00 à 12h00 - Salle réunion PMMH 1
    Tsunami generation by landslides : From laboratory experiments to geophysical events
    Tsunami waves can arise from significant geological events such as the collapse of a mountain flank or a volcano into a lake or an ocean. We reproduce this situation at the laboratory scale. The landslide is modeled by the sudden release of a rectangular granular column, which then impacts a still water layer and (…)
  • Séminaire PMMH - Jérôme Weiss (ISTerre, Grenoble)
    Vendredi 19 mars 2021 de 11h00 à 12h00 - Salle réunion PMMH 1
    Is mechanics driving the Arctic sea ice decline ?
    In the Arctic, sea ice is undergoing for several decades a dramatic decline both in terms of spatial extent and average thickness. As sea ice strongly affects the exchanges of energy and momentum between the ocean and the atmosphere, its decline is accompanied by a particularly strong warming in the Arctic. The (…)
  • Séminaire PMMH - Jérémy Hure (CEA Saclay)
    Vendredi 5 mars 2021 de 11h00 à 12h00 - Salle réunion PMMH 1
    Plasticity and ductile fracture in irradiated metals
    Metals used in nuclear reactors core are subjected to neutron irradiation, leading to different kind of crystallographic defects depending on irradiation conditions. The main irradiation defects include dislocation loops and nano-voids. These defects have a strong influence on plasticity mechanisms, and, in turn, (…)
  • Séminaire PMMH - Matilda Backholm (Aalto Univ., Helsinki, Finland)
    Vendredi 12 février 2021 de 11h00 à 12h00 - Salle réunion PMMH 1
    When honey moves faster than water
    The viscosity of a fluid is well known to limit its flow : the more viscous a droplet, the slower it moves [1,2]. Here, we show that this intuitive rule breaks down in a confined liquid-repellent geometry. A gravity-driven, highly viscous glycerol droplet placed in a sealed superhydrophobic capillary moves more (…)
  • Séminaire PMMH - Emmanuelle Rio (LPS-Univ. Paris Saclay)
    Vendredi 5 février 2021 de 11h00 à 12h00 - Salle réunion PMMH 1
    Rupture of Foam Films and Surface Bubbles
    Surface bubbles are of crucial interest since they favours the transport of material from the bulk to the overlying atmosphere through the production of aerosols. This is important for example in climate models, air pollution studies or in the carbonated beverage industry since the produced aerosols contain most of (…)
  • Séminaire PMMH - Joe Tavacoli (München, Germany)
    Vendredi 29 janvier 2021 de 11h00 à 12h00 - Salle réunion PMMH 1
    Programmable design and performance of modular magnetic microswimmers
    Synthetic microswimmers are promising agents for targeted in-vivo healthcare as well as important frameworks from which to advance the understanding of locomotion strategies at the microscopic scale.[1,2] Nevertheless, constructing these types of devices with flexibility of design and in large numbers remains a (…)
  • Séminaire PMMH - Baptiste Darbois-Texier (FAST)
    Vendredi 22 janvier 2021 de 11h00 à 12h00 - Salle réunion PMMH 1
    Surface instability of shear-thickening suspensions down an inclined plane
    A shear-thickening suspension, such as cornstarch particles in water, exhibits a very strange behavior : it flows as milk when gently stirred but turns rock solid under impact. Despite its notoriety, this phenomenon has been understood only recently. Based on this progress, we decided to explore the behavior of (…)

• 2020

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  • Séminaire PMMH - Lorraine Montel (UPMC)
    Vendredi 11 décembre 2020 de 11h00 à 12h00 - Salle réunion PMMH 1
    Emulsion droplets as a model biomimetic system
    Emulsion droplets recapitulate the deformability and surface fluidity of biological objects, in a simpler and tunable fashion. Thus, they can be used as a model biomimetic system to study cell-cell interactions. During this talk, I will demonstrate this use in two different systems : the study of phagocytosis, and (…)
  • Séminaire PMMH - A.M. Goryaeva (Université de Rouen)
    Vendredi 27 novembre 2020 de 11h00 à 12h00 - Salle réunion PMMH 1
    Reinforcing materials modelling by encoding the structures of defects in crystalline solids into distortion scores
    A perfect crystal is a purely theoretical concept. Real-world crystals contain imperfections, also called defects. Identification and characterization of defects provide the crucial information for interpretation of simulations and experiments that bridge the gap between atomic- and micrometer-scales. But what is (…)
  • Séminaire PMMH - Joseph d'Alessandro
    Vendredi 13 novembre 2020 de 11h00 à 12h00 - Salle réunion PMMH 1

    Eukaryotic cells as interacting living particles

    Cells move. They propel themselves using an internal machinery which endows them with the characteristics of active particles. At the same time, they interact dynamically with (...)
    Eukaryotic cells as interacting living particles
    Cells move. They propel themselves using an internal machinery which endows them with the characteristics of active particles. At the same time, they interact dynamically with their environment and with neigbouring cells, by adhering, exerting forces and exchanging biochemical signals. In this talk, we will first (…)

  • Séminaire PMMH - Costantino Creton (SIMM ESPCI)
    Vendredi 6 novembre 2020 de 11h00 à 12h00 - Salle réunion PMMH 1
    Using light to detect molecular forces, chemical bond scission and to understand fracture
    Costantino Creton Soft Matter Science and Engineering, ESPCI Paris, Université PSL, Paris, F Recent advances in chemistry have made it possible to directly optically visualize forces on chemical bonds or even bond scission by using molecules that either emit light or become fluorescent when activated by the (…)
  • Séminaire PMMH-Cécile Sykes (Institut Curie, Paris)
    Vendredi 27 mars 2020 de 11h00 à 12h00 - Salle réunion PMMH 1
    Active or passive deformation of the cell membrane supplied by actin assembly. Perpectives on nucleus deformation
    In all cell functions, a common observation is that cytoskeleton assembly correlates with membrane deformation based on active forces. The exact role, in particular, of the actin cytoskeleton in cell membrane deformation, with pushing or pulling forces, is what we address both experimentally and theoretically. We (…)
  • Séminaire PMMH - Chung-Yuen Hui (Cornell University)
    Vendredi 13 mars 2020 de 11h00 à 12h00 - Salle réunion PMMH 1
    Mechanical Properties of Fiber-Reinforced Soft Composites
    In this talk I will focus on an emerging class of fiber reinforced composites where the matrix is extremely soft and tough. For example, an upper estimate for fiber/matrix modulus ratio in traditional fiber reinforced polymer composites is at most 100. Matrices made from tough elastic gels can have modulus (…)
  • Séminaire PMMH, Arthur Lebée ENPC
    Vendredi 6 mars 2020 de 11h00 à 12h00 - Salle réunion PMMH 1
    Continuum elasticity of Miura Tessellations
    Origami tessellations are curved two-dimensional discrete shells folded out of a periodic crease pattern. Unlike solid shells, Origami tessellations can morph and access a space of configurations each characterized by the list of folding angles of all creases. Due to inextensibility constraints imposed by Origami (…)
  • Séminaire PMMH- Paulo E. Arratia (UPenn)
    Vendredi 28 février 2020 de 11h00 à 12h00 - Salle réunion PMMH 1
    A microstructural view of yielding and plasticity in 2D disordered materials
    When stressed sufficiently, amorphous materials yield and deform plastically via reorganization of microscopic constituents. Despite much effort, understanding the interdependence of yielding, plasticity, and microscopic structure in non-equilibrium states (i.e. under stress) remains a major challenge. In this (…)
  • Séminaire PMMH- Elisabeth Guazzelli (MSC)
    Vendredi 7 février 2020 de 11h00 à 12h00 - Salle réunion PMMH 1
    Particle motion in vortical flows
    In many natural phenomena or industrial applications, heavy particles are transported in complex flows. The flow structures may happen to promote the stirring and dispersion of the particles. But the opposite can also take place and the flow configuration may contribute to the focussing and accumulation of (…)
  • Séminaire PMMH- Dwight Barkley (University of Warwick)
    Vendredi 31 janvier 2020 de 11h00 à 12h00 - Salle réunion PMMH 1
    A fluid mechanic's analysis of the tea-cup singularity
    In 1926 Einstein published a short paper explaining the meandering of rivers. He famously began the paper by discussing the secondary flow generated in a stirred tea cup — the flow now widely known to be responsible for the collection of tea leaves at the center of a stirred cup of tea. In 2014, Luo and Hou (…)
  • Séminaire PMMH- Kristina Davitt (ENS)
    Vendredi 24 janvier 2020 de 11h00 à 12h00 - Salle réunion PMMH 1
    Wetting hysteresis and dynamics : interpreting dissipation mechanisms at the contact line
    A liquid moving over a solid substrate is an everyday occurrence, and the hysteresis and dynamics of the three-phase contact line have been measured in innumerable experiments over the years. In addition, the ingredients needed to describe the phenomenon are known : in the most basic picture, there is viscous (…)
  • Séminaire PMMH - Doron Grossman (Collège de France)
    Vendredi 17 janvier 2020 de 11h00 à 12h00 - Salle réunion PMMH 1
    From Molecules to Helical Ribbons - Shape and Shape Fluctuations
    * Self assembly of molecules into supramolecular structures is an important process through which non trivial structures are formed in nano-metric scale. The resulting structure depends on chemical and physical principles that govern the process, and may be sensitive to the exact conditions in which they are (…)
  • Séminaire PMMH Nicolas Triantafyllidis (LMS polytechnique)
    Vendredi 10 janvier 2020 de 11h00 à 12h00 - Salle réunion PMMH 1
    STABILITY PROBLEMS IN MECHANICS : MULTIPHYSICS AND MULTISCALE ASPECTS (A MECANICIAN'S PERSPECTIVE…)
    Stability is a fascinating topic in solid mechanics that has its roots in the celebrated Euler column buckling problem, which first appeared in 1744. Over the years advances in technology have led to the study of ever more complicated structures first in civil and subsequently in mechanical engineering applications. (…)