TY - JOUR

T1 - Application of non-convex rate dependent gradient plasticity to the modeling and simulation of inelastic microstructure development and inhomogeneous material behavior

AU - Klusemann, Benjamin

AU - Yalçinkaya, Tuncay

AU - Geers, M. G D

AU - Svendsen, Bob

PY - 2013/12

Y1 - 2013/12

N2 - In this study, a two-dimensional rate-dependent gradient crystal plasticity model for non-convex energetic hardening is formulated and applied to the simulation of inelastic microstructure formation. In particular, non-convex hardening is modeled via a Landau-Devonshire potential for self-hardening and two interaction-matrix-based forms for latent hardening. The algorithmic formulation and the numerical implementation treats the displacement and the glide-system slips as the primary field variables. The numerical simulations are carried out for the case of tensile loading with periodic displacement and slip boundary conditions. The results for the formation of inelastic microstructures and their evolution under mechanical loading are illustrated together with the macroscopic stress-strain responses.

AB - In this study, a two-dimensional rate-dependent gradient crystal plasticity model for non-convex energetic hardening is formulated and applied to the simulation of inelastic microstructure formation. In particular, non-convex hardening is modeled via a Landau-Devonshire potential for self-hardening and two interaction-matrix-based forms for latent hardening. The algorithmic formulation and the numerical implementation treats the displacement and the glide-system slips as the primary field variables. The numerical simulations are carried out for the case of tensile loading with periodic displacement and slip boundary conditions. The results for the formation of inelastic microstructures and their evolution under mechanical loading are illustrated together with the macroscopic stress-strain responses.

KW - Gradient crystal plasticity

KW - Microstructure

KW - Non-convexity

KW - Self-/latent hardening

KW - Viscoplasticity

KW - Engineering

UR - http://www.scopus.com/inward/record.url?scp=84885373041&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/5dfcf285-34dc-3cd9-89e8-e7bfd0abe802/

U2 - 10.1016/j.commatsci.2013.04.016

DO - 10.1016/j.commatsci.2013.04.016

M3 - Journal articles

AN - SCOPUS:84885373041

VL - 80

SP - 51

EP - 60

JO - Computational Materials Science

JF - Computational Materials Science

SN - 0927-0256

ER -