Fast crack propagation by surface diffusion
材料科学
2009-11-07 v1
摘要
We present a continuum theory which describes the fast growth of a crack by surface diffusion. This mechanism overcomes the usual cusp singularity by a self-consistent selection of the crack tip radius. It predicts the saturation of the steady state crack velocity appreciably below the Rayleigh speed and tip blunting. Furthermore, it includes the possibility of a tip splitting instability for high applied tensions.
引用
@article{arxiv.cond-mat/0204056,
title = {Fast crack propagation by surface diffusion},
author = {Efim A. Brener and Robert Spatschek},
journal= {arXiv preprint arXiv:cond-mat/0204056},
year = {2009}
}