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A numerical mode I weight function for calculating stress intensity factors of three-dimensional cracked bodies

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Abstract

A numerical mode I weight function first presented by Parks and Kamenetzky [1] is extended for application to three-dimensional cracked bodies. This weight function makes use of the stiffness derivative method as part of finite element calculations. A virtual crack extension is employed. The major difficulty is proper interpretation of the shape function variation for implementation in three dimensions. Numerical examples in two and three dimensions are examined. Excellent results are obtained in comparison to solutions in the literature, as well as some further finite element studies which are carried out here.

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Authors and Affiliations

  1. The Eda and Jaime David Dreszer Fracture Mechanics Laboratory, Department of Solid Mechanics, Materials and Structures, The Iby and Aladar Fleischman Faculty of Engineering, Tel Aviv University, 69978, Ramat Aviv, Israel

    Leslie Banks-Sills & Elimor Makevet

Authors
  1. Leslie Banks-Sills
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  2. Elimor Makevet
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Banks-Sills, L., Makevet, E. A numerical mode I weight function for calculating stress intensity factors of three-dimensional cracked bodies. Int J Fract 76, 169–191 (1996). https://doi.org/10.1007/BF00018535

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  • DOI: https://doi.org/10.1007/BF00018535

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