Dynamic problems of cracks subjected to incident shear waves

Document Type

Article

Publication Date

1-1-1999

Abstract

By using the dislocation model for the surface crack and images for the free surface, the analytical solutions for interaction between a screw dislocation near a mode III (anti-plane shear) surface crack; an internal crack; and a moving crack subjected to the dynamic antiplane stress have been derived. The distribution densities of the dislocations as well as the phase lags are expressed as a system of singular integral equations containing Bessel functions. With this approach, the above dynamic problems can be properly related to each other and the exact analytical expression for the stress intensity factor for any given frequency can be derived. The effects of the wave number, the input incident angle, propagation speed and the dislocation on the stress intensity factor are also presented.

Identifier

0033204875 (Scopus)

Publication Title

International Journal of Fatigue

External Full Text Location

https://doi.org/10.1016/S0142-1123(99)00051-1

ISSN

01421123

First Page

975

Last Page

983

Issue

9

Volume

21

This document is currently not available here.

Share

COinS