Structural response of materials due to in-depth heating

The effect of uniform through-thickness energy deposition on the thermal-mechanical response of several structural materials is evaluated. Expressions used for determining temperature distributions under moderate deposition rates are presented. Temperature histories of aluminum, titanium, and graphite-epoxy panels subject to electron beam irradiation are compared with analytical results to assess the validity of the methods used. Dynamic material response under extreme deposition rates are developed for instantaneous and finite pulse deposition. Expressions for determining the regime of dominant thermal or dynamic response are given as a function of total energy and energy deposition rate.