Supersonic crack propagation in a class of lattice models of Mode III brittle fracture

Details Supersonic crack propagation in a class of lattice models of Mode III brittle fracture Supersonic crack propagation in a class of lattice models of Mode III brittle fracture

2005-07-07

arxiv.org/abs/cond-mat/0507168v1

Physics

Condensed Matter

Materials Science

4 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.95.224302

We study a lattice model for mode III crack propagation in brittle materials in a stripe geometry at constant applied stretching. Stiffening of the material at large deformation produces supersonic crack propagation. For large stretching the propagation is guided by well developed soliton waves. For low stretching, the crack-tip velocity has a universal dependence on stretching that can be obtained using a simple geometrical argument.

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