Modeling and simulation of inelastic microstructure development and inhomogeneous material behavior via non-convex rate dependent gradient plasticity

B. Klusemann, T. Yalçinkaya, M.G.D. Geers, B. Svendsen

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

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.

Original languageEnglish
Title of host publicationECCOMAS 2012 - European Congress on Computational Methods in Applied Sciences and Engineering, e-Book Full Papers
EditorsJ. Eberhardsteiner
Pages1005-1015
Number of pages11
Publication statusPublished - 2012
Event6th European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2012 - Vienna, Austria
Duration: 10 Sep 201214 Sep 2012
Conference number: 6
http://eccomas2012.conf.tuwien.ac.at/

Conference

Conference6th European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2012
Abbreviated titleECCOMAS 2012
CountryAustria
CityVienna
Period10/09/1214/09/12
OtherThe 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.

Congress Venue
Please note that the ECCOMAS2012 Congress will take place at the University of Vienna and not at Vienna University of Technology.
Internet address

Keywords

  • Gradient crystal plasticity
  • Microstructure
  • Non-convexity
  • Patterning
  • Phase field modeling
  • Viscoplasticity

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