Kinking conditions for running cracks
نویسندگان
چکیده
The Droblem of the abru~t change of the direction of a crack, DroDagating with high velocity, is studied in the resent work. The study is based on a unified ao~roach of the directional instability ~henomena, which accomDany running cracks. According to this ao~roach, the running ti^ is simulated by a reb branched configuration, consisted of two microcracks of arbitrary lengths and orientations. The final macrosco~ica77y observed result de~ends both on these, a oriori unknown, relative lengths and orientations of the two microcracks, and also on the stress 7eve7 and crack velocity.
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