A PROBLEM FOR AN INFINITE THERMOELASTIC BODY WITH A SPHERICAL CAVITY

In this work we study a one-dimensional problem of distribution of the rmal stresses and temperature in a generalized thermoelastic infinite medium with a spherical cavity subjected to a sudden change in the tem perature of its internal boundary which is assumed to be traction free . Laplace transform techniques are used. The solution of the problem i n the transformed domain is obtained by using a direct approach withou t the customary use of potential functions. The inverse transforms are obtained in an exact manner using the complex inversion formula of th e transform together with contour integration techniques. Numerical co mputations are carried out and represented graphically. (C) 1998 Elsev ier Science Ltd. All rights reserved.