Scientific organisers
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Michel Destrade, NUI Galway
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Yibin Fu, Keele University
About:
Nonlinear Elasticity has a long and distinguished history in modelling the mechanics of soft materials. Originally developed to capture the behaviour of rubber and polymers, it is currently experiencing a strong revival due to newly found applications in, for instance, the high-tech industry and healthcare. It is continuously being expanded to describe new materials and new multi-physics fields such as electromagnetic forces in dielectric elastomers, surface tension, residual stress, swelling and growth in hydrogels and biological soft tissues, etc. Novel problems are being attempted and understood with the development of advanced numerical, experimental, and theoretical techniques.
A leading light in this field has been provided for more than fifty years by Professor Ray Ogden FRS, who celebrated his 80th birthday on 19 September 2023. This Euromech Colloquium celebrated his achievements and use the occasion to review the state of the art and explore future directions of research for nonlinear elasticity.
Topics discussed include, but were not confined to
(1) Multi-physics modelling of soft materials: coupling with electromagnetic fields, residual stresses, growth, chemistry and biology;
(2) Wrinkles, creases and morphology of soft solids under multi-physics loads: bifurcation and stability, pattern formation, controlled mechanical buckling for self-assembly, reduced models;
(3) Non-destructive evaluation of the material properties of soft solids: acoustics, nonlinear waves, model-free methods;
(4) Advanced numerical and experimental tools for soft materials: isogeometric analysis, asymptotic numerical method, physics-inspired neural networks, acquisition of 3D displacement fields.
Programme:
| MONDAY 25 MARCH 2024 | ||
| Registration and Refreshments | ||
| Welcome and Housekeeping, By Yibin Fu, Minhyong Kim, John Ball | ||
| Chair: Ray Ogden | ||
| Keynote Talk Gerhard Holzapfel, Graz University of Technology | The development of a building block for a structural artery model | |
| Xiqiao Feng, Tsinghua University | Biochemomechanical coupling theory of lymph nodes | |
| Andrea Menzel, TU Dortmund | An IGA approach to chemo-electro-mechanical coupling in exoelectricity-induced bone remodelling | |
| Refreshments | ||
| Chair: Martine Ben Amar | ||
| Xiaoyu Luo, University of Glasgow | An incompatibility and stress-driven volumetric growth law | |
| Arya Amiri, University of Waterloo | Regional Heterogeneity in Aortic Aneurysms: A Method for Finite Element Analysis | |
| Lunch | ||
| Chair: Ciprian Coman | ||
| Davide Bigoni, Trento University | Solids from structures with architected instabilities | |
| Martine Ben Amar, Ecole Normale Superieur | Creases and cusps in growing soft matter | |
| Pingping Zhu, Harbin Institute of Technology ShenZhen | Analysis of the Mullins effect in buckling instability of double-network hydrogel beams under swelling equilibrium | |
| Refreshments | ||
| Chair: Andrea Menzel | ||
| Mikhail Itskov, RWTH Aachen University | Modeling of softening behavior by deep symbolic regression | |
| Mokarram Hossain, University of Swansea | On biaxial experimental characterizations of soft polymers | |
| Federico Bosi, UCL | Direct stress and yielding determination in inflatable membranes of arbitrary shapes | |
| Welcome Reception, hosted at ICMS | ||
| TUESDAY 26 MARCH 2024 | ||
| Chair: Massimiliano Gei | ||
| Keynote Talk Lihua Jin, University of California, Los Angeles | Non-equilibrium stimuli-responsive soft materials | |
| Ya-Pu Zhao, Chinese Academy of Sciences | Thermoelastic constitutive relations for initially-stressed elastomers: Application to the pore expansion of kerogen under in-situ stresses | |
| Laurence Brassart, Oxford University | Chemo-mechanics of biodegradable polymer networks | |
| Refreshments | ||
| Chair: Laurence Brassart | ||
| Shaoxing Qu, Zhejiang University | A thermodynamic theory coupling photo-chemo-mechano interactions for light-responsive hydrogel |
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| Mahmmod Jabareen, Israel Institute of Technology | Multiscale modeling of nearly incompressible polymer composites | |
| Zaoyang Guo, Harbin Institute of Technology ShenZhen | An extended Hertz model for incompressible Mooney- Rivlin half-space under finite spherical indentation | |
| Group photo | ||
| Lunch | ||
| Chair: Patrizio Neff | ||
| Roger Bustamante, Universidad de Chile | Circumferential shear for an incompressible non-Green elastic cylindrical annulus | |
| Xudong Liang, Harbin Institute of Technology ShenZhen | Phase transforming metamaterial with magnetic interactions | |
| Nhung Nguyen, The University of Chicago | Nonlinear fibre-reinforced membranes with activated fibres | |
| Refreshments | ||
| Chair: Kostas Soldatos | ||
| Valentina Balbi, University of Galway | Cancelling the elastic Poynting effect with geometry | |
| Andrea Nobili, University of Modena and Reggio Emilia | Some remarks on the Love hypothesis in nonlinear elasticity | |
| Patrizio Neff, University of Duisburg-Essen | Constitutive requirements that ensure non-occurrence of stress softening | |
| David Steigmann (ONLINE), Berkeley | A Cosserat model of elastic solids reinforced by curved and twisted fibres | |
| Colloquium Dinner | ||
| WEDNESDAY 27 MARCH 2024 | ||
| Chair: Luis Dorfmann | ||
| Keynote Talk Oscar Lopez-Pamies, University of Illinois, Urbana-Champaign | The magnetoelastic behaviour of elastomers filled with ferrofluid inclusions: Theory and numerical implementation |
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| Max Gei, University of Trieste | On the role of the incompressibility constraint in soft dielectric composites with high phase contrast | |
| Quan Zhang, University of Galway | Hard-magnetic soft elastic metamaterials for tunable wave manipulation | |
| Refreshments | ||
| Chair: Giuseppe Saccomandi | ||
| Rui Xiao (ONLINE), Zhejiang University | A new micro-macro transition for hyperelastic materials | |
| Kostas Volokh, Israel Institute of Technology | Nonlinear elasticity for modelling fracture of soft materials | |
| Prashant Saxena, University of Glasgow | A fully coupled nonlinear magnetoelastic thin shell formulation | |
| Lunch | ||
| Chair: Valentina Balbi | ||
| Luis Dorfmann, Tufts University | Localized bulging and necking of a finitely deformed residually stressed solid cylinder | |
| Souhayl Sadik, Aarhus University | Nonlinear Anisotropic Viscoelasticity | |
| Yasemin Sengul, Cardiff University | A variational approach to strain-limiting viscoelasticity | |
| Refreshments | ||
| Chair: Michel Destrade | ||
| Giuseppe Saccomandi, Universita degli Studi di Perugia | Solitary waves in quasi-incompressible dispersive hyperelastic materials: An application to martensitic alloys | |
| Luigi Vergori, Universita degli Studi di Perugia | Waves in dispersive elastic solids | |
| Karima Khusnutdinova, Loughborough University | On the extended KdV equation, longitudinal bulk strain solitons and undular bores | |
| Poster session | ||
| THURSDAY 28 MARCH 2024 | ||
| Chair: Yibin Fu | ||
| Fan Xu, Fudan University | Curvature regulates wrinkling patterns on surfaces | |
| Yang Liu, Oxford University | Surface wrinkling in film/substrate bilayers: Influence of material inhomogeneity and anisotropy | |
| Michel Potier-Ferry, Université de Lorraine | Asymptotic numerical method for hyperelasticity | |
| Refreshments | ||
| Chair: Karima Khusnutdinova | ||
| Mingchao Liu, Birmingham University | Discrete differential geometry-based model for the snapping analysis of axisymmetric shells | |
| Matteo Taffetani, Edinburgh University | Curvature controls beading in soft elastic cylinders | |
| Ciprian Coman, Huddersfield University | Wrinkling instabilities of spinning discs | |
| Lunch | ||
| End of Colloquium |