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 an interaction-matrix-based form for latent hardening. The algorithmic formulation and numerical implementation treats the displacement and glide-system slips as the primary field variables. Example 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 compared and correlated features of the macroscopic stress-strain response such as stress relaxation.
|Title of host publication||ECCOMAS 2012 - European Congress on Computational Methods in Applied Sciences and Engineering, e-Book Full Papers|
|Number of pages||11|
|Publication status||Published - 2012|
|Event||6th European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2012 - Vienna, Austria|
Duration: 10 Sep 2012 → 14 Sep 2012
Conference number: 6
|Conference||6th European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2012|
|Abbreviated title||ECCOMAS 2012|
|Period||10/09/12 → 14/09/12|
|Other||The European Community on Computational Methods in Applied Sciences (ECCOMAS) is happy to anounce the organization of the 6th EUROPEAN CONGRESS ON COMPUTATIONAL METHODS IN APPLIED SCIENCES AND ENGINEERING (ECCOMAS 2012) to be held at the University of Vienna, Austria, September 10-14, 2012.|
Please note that the ECCOMAS2012 Congress will take place at the University of Vienna and not at Vienna University of Technology.
- Gradient crystal plasticity
- Phase field modeling