Finite thermo-elastic decoupled two-scale analysis

Robert Fleischhauer, Tom Thomas, Junji Kato, Kenjiro Terada, Michael Kaliske

Research output: Contribution to journalArticle

Abstract

Engineering structures are often characterized by different structural properties, depending on the length scale under consideration. Fiber reinforced composites are determined, eg, by a heterogeneous microstructure, but are sufficiently described by homogeneous characteristics at their macroscopic level. Moreover, different loading situations, eg, of thermal or mechanical nature, require the consideration of multiphysical equilibrium states. The challenging engineering task is the computation of the effective material properties of these different loading scenarios. The contribution at hand introduces a finite thermo-elastic two-scale analysis, where the effective macroscopic material properties are computed in a decoupled manner with respect to the different length scales.

Original languageEnglish
Pages (from-to)355-392
Number of pages38
JournalInternational Journal for Numerical Methods in Engineering
Volume121
Issue number3
DOIs
Publication statusPublished - 2020 Feb 15

Keywords

  • anisotropic thermo-elasticity
  • computational homogenization
  • finite deformations

ASJC Scopus subject areas

  • Numerical Analysis
  • Engineering(all)
  • Applied Mathematics

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