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Time-dependent boundary element analysis for an interface crack in a two-dimensional unidirectional viscoelastic model composite

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Abstract

Interfacial stress singularities in a unidirectional two-dimensional laminate model consisting of an elastic fiber and a viscoelastic matrix have been investigated using the time-domain boundary element method. First, the interfacial singular stresses between the perfectly bonded fiber and the matrix of a unidirectional laminate subjected to a uniform transverse tensile strain have been investigated near the free surface, but without any edge crack. Such stress singularity might lead to fiber-matrix debonding or an edge crack. Then, the overall stress intensity factor for the case of a small interfacial edge crack of length a has been computed. The numerical procedure does not permit calculation of the limiting case for which the edge crack length vanishes.

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Authors and Affiliations

  1. Reactor Mechanical Engineering Department, Korea Atomic Energy Research Institute, Yoo-sung, P.O. Box 105, 305-606, Taejon, South Korea

    Sang Soon Lee

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  1. Sang Soon Lee
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Lee, S.S. Time-dependent boundary element analysis for an interface crack in a two-dimensional unidirectional viscoelastic model composite. Int J Fract 77, 15–28 (1996). https://doi.org/10.1007/BF00035368

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  • DOI: https://doi.org/10.1007/BF00035368

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