GENERALIZED THERMOELASTICITY: RESPONSE OF SEMI-SPACE TO A SHORT LASER PULSE

Abstract

An analysis of laser-induced waves propagating in an absorbing thermoelastic semi-space of the Green-Lindsay type is presented. A volume model of absorption in which a laser-induced heat has the form of a product of an exponentially decreasing function of the semi-space depth and a “skewed” Gaussian temporal profile is assumed. A closed-form solution to the associated one-dimensional initial-boundary value problem is obtained. A qualitative analysis of the solution shows that for a fixed cross-section of the semi-space the stress-temperature response of the body is represented by a pair of smooth transiental functions of time.