Crack Propagation as a Free Boundary Problem

Abstract:

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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 sharp interface method and a phase field approach to investigate the model. The simulations confirm analytical predictions for fast crack propagation.

Info:

Periodical:

Key Engineering Materials (Volumes 345-346)

Edited by:

S.W. Nam, Y.W. Chang, S.B. Lee and N.J. Kim

Pages:

429-432

DOI:

10.4028/www.scientific.net/KEM.345-346.429

Citation:

R. Spatschek et al., "Crack Propagation as a Free Boundary Problem", Key Engineering Materials, Vols. 345-346, pp. 429-432, 2007

Online since:

August 2007

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Price:

$35.00

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