FE²-homogenization of micromorphic elasto-plastic materials

authored by

Heiko Clasen, C. Britta Hirschberger, Jože Korelc, Peter Wriggers

Abstract

In this work, a homogenization strategy for a micromorphic-type inelastic material is presented. In the spirit of FE², a representative volume element is attached to each macroscopic quadrature point. Due to the inherent length scale of the micromorphic continuum, size effects for inelastic behavior are obtained on RVE-level. A focus is placed on the computation of the homogenized algorithmic tangent. It is determined via sensitivity analyses with respect to the boundary conditions imposed on the RVE. Following this procedure, costly single-scale computations with dense meshes can be replaced by a robust homogenization approach with optimal convergence rates.

Organisation(s)

Institute of Continuum Mechanics

External Organisation(s)

University of Ljubljana

Type

Conference contribution

Pages

280-291

No. of pages

12

Publication date

2013

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Polymers and Plastics

 

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