Unsteady thermoelastic analysis of a circular disk with a hot central coreand subjected to adiabatic conditions

The unsteady thermoelastic analysis of a cooling circular disk or cylinder which is originally at uniform temperature is a classical problem of the th eory of thermal stresses. More recent studies consider the case of composit e structural configurations. The present paper deals with a situation which , apparently, has not been previously considered: unsteady thermal stresses caused by the presence of a hot, central nucleus. The temperature field is obtained in terms of a Fourier-Bessel expansion and then, radial and tange ntial stresses are evaluated analytically. The problem is of basic interest in mechanical and naval engineering systems. (C) 1999 Elsevier Science Ltd . All rights reserved.