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Three-dimensional numerical investigation of brittle bond fracture

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Abstract

A fracture mechanics based analysis of interface bond failure is presented. The bond edge is regarded as an interface crack front loaded under combined mode 1, 2 and 3 loading, and results are obtained for the critical stress for initiation of bond failure and the location along the bond edge where failure is initiated. A numerical procedure is formulated to study the propagation of the interface crack following initiation. Assuming that the crack propagates at the interface, a criterion for propagation is formulated, and it is shown that the crack front shape predicted is consistent with the basic interface fracture mechanics assuming quasi-static crack propagation. Results for the bond strength are presented for different fracture criteria and different bond shapes.

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Authors and Affiliations

  1. Department of Solid Mechanics, Technical University of Denmark, Building 404, DK-2800, Lyngby, Denmark

    Henrik Myhre Jensen

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  1. Henrik Myhre Jensen
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Jensen, H.M. Three-dimensional numerical investigation of brittle bond fracture. International Journal of Fracture 114, 153–165 (2002). https://doi.org/10.1023/A:1015066711279

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  • DOI: https://doi.org/10.1023/A:1015066711279

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