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OnJ-integrals in the plane fracture of composite materials

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Abstract

By using a complex function method in this paper, the complex form of J-integral of mixed mode crack tip for unidirectional plate of linear-elastic orthotropic composites is obtained first by substituting crack tip stresses and displacements into general formula of J-integral. And then, the path-independence of this J-integral is proved. Finally, the computing formula of this J-integral is derived. As special examples, the complex forms, path-independence and computing formulae of J-integrals of mode I and mode II crack tips for unidirectional plate of linear-elastic orthotropic composites are given.

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Authors and Affiliations

  1. Taiyuan Heavy Machinery Institute, Taiyuan

    Yang Wei-yang, Zhang Shao-qin & Jia Yuan-duo

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  1. Yang Wei-yang
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  2. Zhang Shao-qin
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  3. Jia Yuan-duo
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Communicated by Tang Ren-ji

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Wei-yang, Y., Shao-qin, Z. & Yuan-duo, J. OnJ-integrals in the plane fracture of composite materials. Appl Math Mech 13, 281–287 (1992). https://doi.org/10.1007/BF02457374

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  • DOI: https://doi.org/10.1007/BF02457374

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