Effect of inclusion shape on the effective elastic moduli for composites with imperfect interface |
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| Authors: | J Tong C -W Nan J Fu X Guan |
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| Affiliation: | (1) Present address: Department of Materials Science and Engineering, Tsinghua University, 100084 Beijing, P.R. China;(2) Present address: Institute of Civil Engineering and Architecture, Wuhan University of Technology, 430070 Wuhan, P.R. China;(3) Present address: Xi'an Institute of Mechanical-Electrical Information, 710061 Xi'an, P.R. China |
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| Abstract: | Summary Bounds on the effective elastic moduli for isotropic composites consisting of randomly oriented spheroidal inclusions with imperfect matrix-inclusion interface are proposed based on Hashin's extremum principle. Phenomenally, these bounds are the first-order ones for such composites, and contain the effect of the size and shape of inclusions, and the elastic properties of constituent phases and interfaces. In the limit cases, these bounds reduce to those known ones. The effect of inclusion shape and interface imperfection on the bounds is discussed with some numerical results for a WC/Co metal-matrix composite. |
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