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

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

Samenvatting

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.

Originele taal-2Engels
TitelECCOMAS 2012 - European Congress on Computational Methods in Applied Sciences and Engineering, e-Book Full Papers
RedacteurenJ. Eberhardsteiner
Pagina's1005-1015
Aantal pagina's11
StatusGepubliceerd - 2012
Evenement6th European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2012 - Vienna, Oostenrijk
Duur: 10 sep 201214 sep 2012
Congresnummer: 6
http://eccomas2012.conf.tuwien.ac.at/

Congres

Congres6th European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2012
Verkorte titelECCOMAS 2012
Land/RegioOostenrijk
StadVienna
Periode10/09/1214/09/12
Anderuropean Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS 2012)
Internet adres

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