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4 papers · 2 filters
Internal Stress in a Model Elasto-Plastic Fluid
Takeshi Ooshida, Ken Sekimoto
Plastic materials can carry memory of past mechanical treatment in the form of internal stress. We introduce a natural definition of the vorticity of internal stress in a simple tw…
Slow flows of yield stress fluids: complex spatio-temporal behaviour within a simple elasto-plastic model
Guillemette Picard, Armand Ajdari, Francois Lequeux +1
A minimal athermal model for the flow of dense disordered materials is proposed, based on two generic ingredients: local plastic events occuring above a microscopic yield stress, a…
Cavity Growth in Soft Solids
Arnaud Chiche, Josef Dollhofer, Costantino Creton
Soft polymer-based solid materials can be defined as solid materials with elastic moduli below 1 MPa. In order to obtain such a low modulus while retaining a solid character, all t…
Elastic consequences of a single plastic event : a step towards the microscopic modeling of the flow of yield stress fluids
Guillemette Picard, Armand Ajdari, Francois Lequeux +1
With the eventual aim of describing flowing elasto-plastic materials, we focus on the elementary brick of such a flow, a plastic event, and compute the long-range perturbation it e…