Abstract
This paper is concerned with a coupled thermoelastic problem in an infinite elastic solid containing a penny-shaped crack, considering the effect of coupling between the temperature and strain fields. It is assumed that transient thermal stress is set up by the application of negative heat generation to the crack surface. By use of the thermoelastic potential and harmonic functions in strain fields, and the finite difference method for the time variable only, the analytical solution for the spatial variables can be obtained. The numerical results are shown for the effect of coupling between the temperature and strain fields on the stress intensity factor.
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