The mechanical properties of a transverse isotropic voided material

✍ Scribed by Fue Han; Changqing Chen; Yapeng Shen

• Publisher: Elsevier Science
• Year: 2011
• Tongue: English
• Weight: 830 KB
• Volume: 93
• Category: Article
• ISSN: 0263-8223
• DOI: 10.1016/j.compstruct.2011.03.008

✦ Synopsis

The mechanical properties of a transverse isotropic honeycomb porous material were investigated by the experiment and the finite element method. The relative density dependence of the macroscopic elastoplastic constants along the in-plane and out of plane directions (e.g., Young's modulus, Poisson's ratio, yielding stress, etc.) was systematically studied. Good agreement between the experimental and numerical results was observed. In addition, the three dimensional numerical results were compared with simplified foam models and self-consistent estimates, showing the necessity to improve available models for foams in order to achieve a better predictive capability. At the same time, the elastic-plastic failure mechanism was discussed in detail.