Micromechanics modeling of tensile/shear behavior and crack density of composite materials

D. Haruyama, S. Onodera, T. Okabe

Research output: Contribution to conferencePaperpeer-review

Abstract

The motivation of the study is that we evaluate the relationship between matrix crack and transverse crack and stiffness degradation of brittle matrix composites. We use the micromechanics model proposed by Curtin et al. for matrix crack and proposed by Okabe et al. and Gudmundson-Zang. for transverse crack. Moreover, we use the model proposed by Chow and Lu for calculation of shear stiffness degradation from the tensile stiffness degradation. Furthemore, the energy release rate is used as the calculation of damage evolution. We verify the micromechanics model of three dimensions by comparing to the result of Onodera et al.'s paper about transverse crack. Moreover, we validate the micromechanics model of matrix crack by comparing numerical analysis with test. This micromechanics model is implemented in Abaqus code. We check the marterial behavior with cracks in each direction.

Original languageEnglish
Publication statusPublished - 2019
Event22nd International Conference on Composite Materials, ICCM 2019 - Melbourne, Australia
Duration: 2019 Aug 112019 Aug 16

Conference

Conference22nd International Conference on Composite Materials, ICCM 2019
CountryAustralia
CityMelbourne
Period19/8/1119/8/16

Keywords

  • Crack density
  • Damage analysis
  • Micromechanics

ASJC Scopus subject areas

  • Engineering(all)
  • Ceramics and Composites

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