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A wide range weight function for a single edge cracked geometry with clamped ends

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Abstract

A single edge cracked geometry with clamped ends is well suited for fracture toughness and fatigue crack growth testing of composites and thin materials. Stress intensity factors may be determined by the weight function method. A weight function for the single edge cracked geometry with clamped ends is developed and verified in this paper. It is based on analytical forms for the reference stress intensity factor and crack mouth opening displacement. The analytical forms are shown to be valid, by comparison with finite element results, over a wide range of crack depths and plate aspect ratios. Use of the analytical form enables the weight function to be calculated for any plate aspect ratio without the need for preliminary finite element analysis. Stress intensity factors and crack mouth opening displacements, predicted using this weight function, correlated well with finite element results for non-uniform crack surface stress distributions.

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Authors and Affiliations

  1. School of Engineering, Liverpool John Moores University, Byrom St., Liverpool, U.K, L3 3AF.

    I. S. Jones

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  1. I. S. Jones
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Jones, I.S. A wide range weight function for a single edge cracked geometry with clamped ends. International Journal of Fracture 89, 1–18 (1998). https://doi.org/10.1023/A:1007463205924

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  • DOI: https://doi.org/10.1023/A:1007463205924

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