424 Modeling and Simulation of Extreme Inelastic Deformation: from Soft Solids to Elastic Fluids

Franck Vernerey, University of Colorado Boulder
Ravindra Duddu, Vanderbilt University
This symposium will focus on theoretical and computational approaches that will enable a better understanding and prediction of materials that undergo a combination of flow and elastic deformation, which can potentially reach up to several hundreds of percent in strain. Such materials may be therefore classified at the boundary between visco-elastic solids and complex elastic fluids. The objective of this symposium is to provide a forum that will stimulate discussions on current challenges, potential solutions and the future of these phenomena from a physical, mathematical or computational perspectives. Problems of interest are for instance, the mathematical/computational treatment of a combination of extreme visco-plastic flow (inelastic deformation) and/or large elastic deformations without mesh distortion or the development of numerical techniques for handling arbitrary topological transitions, including merging and vanishing of material interfaces. The link between those mathematical concepts and the underlying physics, or microstructure deformation mechanisms, is also of primary interest. For instance, applications of interest include problems encountered in diverse areas such as the mechanics of soft matter (e.g., visco-elasticity of polymers and hydrogels), living tissues (e.g., creep and growth), metals (e.g., plasticity and metal forming) or geophysics (e.g., ice sheet flow, mantle dynamics) to name a few. Topics include but are not limited to:

- Numerical methods (e.g., FEM, XFEM, mesh-free) for the modeling extreme deformation
- Algorithms based on fully Eulerian or Coupled Eulerian Lagrangian descriptions
- Topological transitions of soft Polymer membrane and shells
- Mechanics, deformation and merging of interfaces
- Modeling biological growth and the associated topological changes
- Multiphysics problems involving extreme deformation (e.g., coupling flow, growth melting with application in geosciences, micro-fluidics, self-healing materials)