Physics – Condensed Matter – Materials Science
Scientific paper
2005-08-23
Physics
Condensed Matter
Materials Science
5 pages, 11 figures
Scientific paper
10.1103/PhysRevLett.96.015502
We present a continuum theory which predicts the steady state propagation of cracks. The theory overcomes the usual problem of a finite time cusp singularity of the Grinfeld instability by the inclusion of elastodynamic effects which restore selection of the steady state tip radius and velocity. We developed a phase field model for elastically induced phase transitions; in the limit of small or vanishing elastic coefficients in the new phase, fracture can be studied. The simulations confirm analytical predictions for fast crack propagation.
Brener Efim
Hartmann Miks
Kassner Klaus
Mueller-Krumbhaar Heiner
Spatschek Robert
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