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Subcritical crack growth at bimaterial interfaces: Part I. flexural peel technique

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Abstract

A flexural peel (FP) technique was developed to study the crack growth behavior along a bimaterial interface. The technique was based on a sandwich specimen where one arm of the specimen was peeled away from the interface under a combined tensile and shear mode. An approximate linear elastic fracture mechanics solution was derived analytically from theJ integral formulation. The solution was compared to finite element calculations based on the crack closure method and experimental measurements. From the finite element analysis, ratios of the mode-I and mode-II components of the crack tip field were determined for a wide range of modulus and thickness ratios.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, 61801, Urbana, IL

    Zhehua Zhang (Research Assistant) & J. K. Shang (Assistant Professor)

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  1. Zhehua Zhang
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  2. J. K. Shang
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Zhang, Z., Shang, J.K. Subcritical crack growth at bimaterial interfaces: Part I. flexural peel technique. Metall Mater Trans A 27, 205–211 (1996). https://doi.org/10.1007/BF02647760

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  • DOI: https://doi.org/10.1007/BF02647760

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