Applicability of the interface spring model for micromechanical analyses with interfacial imperfections to predict the modified exterior Eshelby tensor and effective modulus

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Closed-form solutions for the modified exterior Eshelby tensor, strain concentration tensor, and effective moduli of particle-reinforced composites are presented when the interfacial damage is modeled as a linear-spring layer of vanishing thickness; the solutions are validated against finite element analyses. Based on the closed-form solutions, the applicability of the interface spring model is tested by calculating those quantities using finite element analysis augmented with a matrix–inhomogeneity non-overlapping condition. The results indicate that the interface spring model reasonably captures the characteristics of the stress distribution and effective moduli of composites, despite its well-known problem of unphysical overlapping between the matrix and inhomogeneity.
Publisher
SAGE PUBLICATIONS LTD
Issue Date
2019-09
Language
English
Article Type
Article
Citation

MATHEMATICS AND MECHANICS OF SOLIDS, v.24, no.9, pp.2944 - 2960

ISSN
1081-2865
DOI
10.1177/1081286519826343
URI
http://hdl.handle.net/10203/267483
Appears in Collection
ME-Journal Papers(저널논문)
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