Deformation and flow of amorphous solids: Insights from elastoplastic models

By Alexandre Nicolas, Ezequiel Ferrero, K. Martens, J. Barrat. Reviews of Modern Physics, 2017

331 citations recorded by the source corpus.

The deformation and flow of disordered solids, such as metallic glasses and concentrated emulsions, involves swift localized rearrangements of particles that induce a long-range deformation field. To describe these heterogeneous processes, elastoplastic models handle the material as a collection of 'mesoscopic' blocks alternating between an elastic behavior and plastic relaxation, when they are too loaded. Plastic relaxation events redistribute stresses in the system in a very anisotropic way. We review not only the physical insight provided by these models into practical issues such as strain localization, creep and steady-state rheology, but also the fundamental questions that they address with respect to criticality at the yielding point and the statistics of avalanches of plastic events. Furthermore, we discuss connections with concurrent mean-field approaches and with related problems such as the plasticity of crystals and the depinning of an elastic line.

Subfields: Condensed Matter Physics, Materials Chemistry, Mechanical Engineering

View Paper: https://www.semanticscholar.org/paper/1de9be1e5be9f6740a2304ada039d7bc348b8c5e

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In Condensed Matter Physics

In Materials Chemistry

In Mechanical Engineering

Citations in the corpus

Roadmap on multiscale materials modeling (2020, background): “The blocks are endowed with (visco)elastic properties and a local yield threshold: upon yielding, they redistribute their load non-locally and anisotropically throughout the medium with an elastic propagator of the Eshelby form, G(r, θ)∼cos(4θ)/r d (in the plane of the ST), with d the dimension of”