Elastoplastic Approach Based on Microscopic Insights for the Steady State and Transient Dynamics of Sheared Disordered Solids
Chen Liu, Suman Dutta, Pinaki Chaudhuri, Kirsten Martens
Abstract
We develop a framework to study the mechanical response of athermal amorphous solids via a coupling of mesoscale and microscopic models. Using measurements of coarse-grained quantities from simulations of dense disordered particulate systems, we present a coherent elastoplastic model approach for deformation and flow of yield stress materials. For a given set of parameters, this model allows us to match consistently transient and steady state features of driven disordered systems with diverse preparation histories under both applied shear-rate and creep protocols.
Topics & Concepts
Mesoscale meteorologyCreepTransient (computer programming)Materials scienceMechanicsSteady state (chemistry)Shear (geology)PlasticityYield (engineering)Amorphous solidDynamics (music)Statistical physicsCoupling (piping)Deformation (meteorology)PhysicsComposite materialComputer scienceChemistryCrystallographyAcousticsOperating systemPhysical chemistryMeteorologyMaterial Dynamics and PropertiesMetallic Glasses and Amorphous AlloysTheoretical and Computational Physics