Influence of the Homogenization on the Transient Behaviour of Size Distributed Polycrystals | Zendy

Rieger Florian | Zendy; Böhlke Thomas | Zendy

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Influence of the Homogenization on the Transient Behaviour of Size Distributed Polycrystals

Author(s) -

Rieger Florian,

Böhlke Thomas

Publication year - 2013

Publication title -

pamm

Language(s) - English

Resource type - Journals

ISSN - 1617-7061

DOI - 10.1002/pamm.201310076

Subject(s) - homogenization (climate) , grain size , representative elementary volume , materials science , stiffness , hardening (computing) , mechanics , composite material , physics , microstructure , biodiversity , ecology , layer (electronics) , biology

The deformation in polycrystals is often heterogenous, e.g. due to grain size dependent hardening. In a semi‐analytical representative volume element (RVE), a log‐normal distributed grain size is assumed together with a grain size dependent local plastic behavior. The numerical results are well approximated by a simple analytical expression. The effect of the homogenization comparison stiffness on the transient behaviour is explained using a simplified localization equation. (© 2013 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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