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    题名: Evaluation of energy release rate for a planar crack in heterogeneous media
    作者: Chang,JH
    贡献者: 土木工程研究所
    关键词: INTERFACE;FRACTURE
    日期: 1996
    上传时间: 2010-06-29 17:10:51 (UTC+8)
    出版者: 中央大學
    摘要: A modified version of domain integral method is developed for evaluation of energy release rate with finite element solutions for problems with a 2-D crack located in a heterogeneous elastic field. The heterogeneous field considered in this work generally contains various materials, with discontinuous mechanical moduli across the interfaces. The formulation is proved to be patch-independent, in a generalized sense, and valid for problems under both small and large deformations. The results of calculation appear to be very insensitive to the crack tip finite element models when the tip is away from the material interface. However, strong dependency on the local modeling is observed in case the tip is located at the interface. Alternative studies on this particular case are thus required.
    關聯: INTERNATIONAL JOURNAL OF FRACTURE
    显示于类别:[土木工程研究所] 期刊論文

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