Evaluation of effective hyperelastic material coefficients for multidefected solids under large deformation

Research output: Contribution to journalArticlepeer-review

Abstract

The present work deals with the modeling of multi-defected solids under the action of large deformation. A micromechanics constitutive model, formulated in terms of the compressible anisotropic NeoHookean strain energy density function, is presented to characterize the corresponding nonlinear effective elastic behavior. By employing a scalar energy parameter, a correspondence relation between the effective hyperelastic model and this energy parameter is established. The corresponding effective material coefficients are then evaluated through combined use of the "direct difference approach" and the extended "modified compliance contribution tensor" method. The proposed material constitutive model can be further used to estimate the effective mechanical properties for engineering structures with complicated geometry and mechanics and appears to be an efficient computational homogenization tool in practice.

Original languageEnglish
Pages (from-to)1773-1795
Number of pages23
JournalAIMS Materials Science
Volume3
Issue number4
DOIs
StatePublished - 2016

Keywords

  • Anisotropic hyperelasticity
  • Direct difference approach
  • Effective strain energy density function
  • Large deformation
  • Modified compliance contribution tensor
  • Multiple defects

Fingerprint

Dive into the research topics of 'Evaluation of effective hyperelastic material coefficients for multidefected solids under large deformation'. Together they form a unique fingerprint.

Cite this