Dynamics stress intensity factor of a moving internal crack subjected to incident shear waves

Document Type

Conference Proceeding

Publication Date

1-1-1997

Abstract

By using the dislocation model for a moving internal crack subjected to the dynamic antiplane stress, the elastodynamic Mode III stress intensity factors at the crack tips have been derived. Based on the dislocation concept applied to a stationary crack subjected to dynamic SH loadings, we represent a moving internal crack subjected to SH (horizontal polarized shear waves) with an array of continuous distribution of screw dislocations, all parallel to z axis. The densities of the dislocations as well as the phase lags are expressed as a system of singular integral equations, which contains Bessel functions. The effects of the wave number, the input incident angle and Mach number on the stress intensity factors are presented.

Identifier

0030688478 (Scopus)

Publication Title

International Conference on Control of Oscillations and Chaos Proceedings

First Page

395

Last Page

398

Volume

3

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