by Paynter, R. J. H.; Hills, D. A.; Sackfield, A.

The crack tip stress intensities are found for a penny shaped crack lying beneath the free surface of a half-space, and parallel with it. This is done by employing a novel distributed dislocation approach using axi-symmetric Somigliana dislocations as the kernel of an integral equation, and provides a precise solution at the expense of little computing cost. A comparison is made with the crack tip stress intensity factors for a simple plane crack, and predictions are made for the preferred crack extension direction.

DOI: 10.1007/s10704-006-9042-5
Online Date: 12/21/2006
Print publication date: 11/1/2006
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