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Crack-inclusion interaction for mode I crack analyzed by Eshelby equivalent inclusion method

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Abstract

Several simple formulas have been developed to predict the variations of stress intensity factors for mode I crack induced by the stiffness and geometry of the near crack-tip inclusion. The derivation of the fundamental formula is based on the transformation toughening theory. The unconstrained mismatch strains between matrix and inclusion, which induce the variation of the near crack-tip field, are estimated based on the Eshelby equivalent inclusion approach. As validated by numerical examples, the developed formulas have satisfactory accuracy for a wide range of the modulus ratio between inclusion and matrix as long as the inclusion is located in the K 0-controlled field.

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Authors and Affiliations

  1. School of Civil Engineering and Mechanics, Shanghai Jiaotong University, 200240, Shanghai Minhang, P.R. China (e-mail

    Zhonghua Li & Qiang Chen

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  1. Zhonghua Li
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  2. Qiang Chen
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Li, Z., Chen, Q. Crack-inclusion interaction for mode I crack analyzed by Eshelby equivalent inclusion method. International Journal of Fracture 118, 29–40 (2002). https://doi.org/10.1023/A:1022652725943

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