JSME International Journal Series A Solid Mechanics and Material Engineering
Online ISSN : 1347-5363
Print ISSN : 1344-7912
ISSN-L : 1344-7912
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Higher Order Mode-I Elastodynamic Stress and Displacement Fields of Dynamic Crack Propagation in Brittle Materials
Masaaki WATANABE
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2006 Volume 49 Issue 1 Pages 107-115

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Abstract

Higher order Mode-I elastodynamic stress and displacement fields at the tip of a crack are calculated by the perturbation method up to the 1-st order. The present method of derivation utilizes a certain condition at the crack tip and resolves the difficulty encountered otherwise. Including the 1-st order stress field we find that the well known hoop stress maximum at high crack velocity, which is considered to determine the direction of the branching, disappears when the crack is accelerated.

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© 2006 by The Japan Society of Mechanical Engineers
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