A new interpolative homogenization model for evaluation of the effective elasto-plastic responses of two-phase composites

Wenlong Tian, Lehua Qi, Xujiang Chao, Junhao Liang, M. W. Fu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

7 Citations (Scopus)

Abstract

To accurately predict the effective elasto-plastic responses of two-phase composites, an interpolative M-T/D-I mean-field homogenization model with the tangent formulation is proposed, and the numerical implementation algorithm of the proposed M-T/D-I model with the tangent formulation is presented. The comparisons between the effective elastic properties and elasto-plastic responses of two-phase composites predicted by the M-T/D-I model with the tangent formulation and the RVE based FE homogenization method show that the M-T/D-I model with the tangent formulations can accurately evaluate the effective mechanical properties of two-phase composites. The simulation results demonstrate that the elastic properties of two-phase composites predicted by the M-T/D-I model are more accurate than those predicted by the D-I and M-T models, and the effective elasto-plastic responses of two-phase composites predicted by the M-T/D-I model vary in the range of those predicted by the D-I and M-T models. It is revealed that the M-T/D-I model with the tangent formulation allows to simulate the tensile/compression and biaxial tensile/shear elasto-plastic responses of two-phase composites. Lastly, the effects of the inclusion volume fraction and elastic properties on the effective elasto-plastic responses of two-phase composites are discussed for showing the capability of the proposed interpolative M-T/D-I model with the tangent formulation.

Original languageEnglish
Pages (from-to)810-821
Number of pages12
JournalComposite Structures
Volume210
DOIs
Publication statusPublished - 15 Feb 2019

Keywords

  • Elasto-plastic response
  • FE homogenization
  • Interpolative M-T/D-I model
  • Micro-mechanics
  • Numerical algorithm
  • Tangent formulation

ASJC Scopus subject areas

  • Ceramics and Composites
  • Civil and Structural Engineering

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