The asymptotic solution to the antiplane shear dynamic crack-tip field in an elastic strain-softening viscoplastic material

被引：0
作者：
Fanchun L. [1 ]
Hui Q. [1 ]
机构：
[1] Harbin Engineering University
来源：
Applied Mathematics and Mechanics | 1997年 / 18卷 / 2期
关键词：
Crack-tip field; Dynamic propagating; Strain softening;
D O I：
10.1007/BF02458017
中图分类号：
学科分类号：
摘要：
The elastic strain softening-viscoplastic model is given in this paper. Using this model, the asymptotic stress and strain equations surrounding the tip of a propagating crack are given and numerical results are obtained under antiplane shear. The analysis and calculation show that at the crack tip the strain possesses logarithmic singularity (1n(R /r))1/(n+1) while the stress is like (1u(R/r))-n/(n+1) , therefore the asymptotic behaviour of the elastic strain-softening viscoplastic field is revealed under the antiplane shear.
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页码：173 / 179
页数：6
相关论文
共 3 条
  • [1] Bui H.D., Ehrlacher A., Dynamic propagation of a damage zone in steady mode III loading of an elastic brittle solid, Comptes Rendus Acad. Sci. Paris, 290 B, (1980)
  • [2] Gao Y.C., The asymptotic solution to the dynamic crack tip field in a strain dynamic material, Int. J. Engng. Sci., 6, (1986)
  • [3] Gao Y.C., Uniparameter plastic field near a dynamic crack tip, Mechanics Research Communication, 15, pp. 307-313, (1988)
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