Evaluation by FEM of temperature-dependent damage behavior in quasi-isotropic carbon/epoxy laminates

Hyoung Soo Kim, Wen Xue Wang, Yoshihiro Takao

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9 Citations (Scopus)


Tensile tests of quasi-isotropic (0/45/-45/90)s Carbon Fiber Reinforced Plastic (CFRP) laminate at low (-100°C), room (25°C), and high (150°C) temperatures showed that the transverse crack propagation and interlaminar delamination growth behavior are obviouslyaffected by the temperature. In the present study, the three-dimensional finite element method (FEM) is applied to a quasi-isotropic CFRP laminate to investigate the interlaminar free edge stresses and ply stresses under combined thermal and mechanical loadings. The mechanical properties ofa lamina (T800H/#3631) are obtained experimentally as a function of temperature and both the temperature-dependent mechanical properties and the idea of stress-free temperature are taken into account. Resulting stresses, including initial residual thermal ones due to the stress-free temperature, are used to discuss the above mentioned experimental results, which leads to the temperature-dependent critical properties for damages such as transverse crack and delamination.

Original languageEnglish
Pages (from-to)247-257
Number of pages11
JournalAdvanced Composite Materials
Issue number3
Publication statusPublished - Jan 1 1999

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Mechanics of Materials
  • Mechanical Engineering


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