Summary
Stress relaxation in composites reinforced by hard, spherical inclusions by interfacial diffusion and interfacial sliding are studied separately. Somigliana dislocations are used to model the misfits at the matrix-inclusion interface. By adopting Papkovitch-Neuber displacement potentials, the transient fields of displacement and stress in the system of a single inclusion embedded in an infinite matrix under uniaxial tension are obtained explicitly. The overall anelastic behaviors of the composites are then analyzed on the basis of Mori-Tanaka mean-field approximation. Numerical results are illustrated, and some interesting concerns are discussed.
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He, L.H. Transient stress relaxation around spherical inclusions by interfacial diffusion and sliding. Acta Mechanica 149, 115–133 (2001). https://doi.org/10.1007/BF01261667
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DOI: https://doi.org/10.1007/BF01261667