Transient loading of a rapidly advancing Mode-II crack in a viscoelastic medium

被引:13
作者
Antipov, YA
Willis, JR
机构
[1] Univ Cambridge, Dept Appl Math & Theoret Phys, Cambridge CB3 9EW, England
[2] Univ Bath, Dept Math Sci, Bath BA2 7AY, Avon, England
关键词
viscoelastic media; dynamic fracture; laplace transform; Riemann-Hilbert problems; stress-intensity factor;
D O I
10.1016/S0167-6636(02)00260-0
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The problem that is studied concerns a semi-infinite crack in an infinite viscoelastic medium, propagating at uniform speed but subject to time-dependent loading. A particular loading, consisting of a pair of concentrated shear forces which come into existence as the crack passes their location. is studied in detail. Both sub-Rayleigh and transonic speed ranges are considered. The solution displays a richer range of possible behaviour than the corresponding solution for an elastic medium. which is likely to reflect in practice on the range of propagation speeds that may be achievable. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:415 / 431
页数:17
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