Crack Front Waves and the dynamics of a rapidly moving crack

Details Crack Front Waves and the dynamics of a rapidly moving crack Crack Front Waves and the dynamics of a rapidly moving crack

2001-07-23

arxiv.org/abs/cond-mat/0107470v1

Physics

Condensed Matter

Materials Science

Embedded Latex file including 4 figures

Scientific paper

10.1103/PhysRevLett.88.085503

Crack front waves are localized waves that propagate along the leading edge of a crack. They are generated by the interaction of a crack with a localized material inhomogeneity. We show that front waves are nonlinear entities that transport energy, generate surface structure and lead to localized velocity fluctuations. Their existence locally imparts inertia, which is not incorporated in current theories of fracture, to initially "massless" cracks. This, coupled to crack instabilities, yields both inhomogeneity and scaling behavior within fracture surface structure.

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