期刊
INTERNATIONAL JOURNAL OF FRACTURE
卷 177, 期 2, 页码 199-206出版社
SPRINGER
DOI: 10.1007/s10704-012-9754-7
关键词
Porous material; effective properties; non-ellipsoidal pores; concave pores; supersphere
资金
- Labex [ANR-10-LABX-21 Ressources21]
- New Mexico Space Grant Consortium
This paper focuses on the effect of concavity of pores on elastic properties of porous materials. We consider a pore having a shape of a supersphere of unit radius (x)(2p) + (y)(2p) + (z)(2p) = 1 focusing mostly on the case p a parts per thousand currency sign 1. Using FEM analysis of Sevostianov et al (2008), we propose simple approximate formulae for components of the compliance contribution tensor of the supersphere. From these formulae, we identify the microstructural parameter describing its contribution into effective elastic properties. The derivation is illustrated by comparison of the results with the known ones for a spheroidal pore of the aspect ratio gamma.
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