On the possibility of determining spalling strength of metals in a submillisecond range from experiments with a penetrating radiation effect on a target

The strength of a metal under the action of short pulses is of great intere st. Meanwhile, the problem concerning the magnitude of a tensile stress tha t leads to cleavage has not yet been solved theoretically. In this paper, a n attempt is made to clarify, using the mathematical simulation method, the parameters of pulse radiation that can yield the clearest answer to the qu estion of which of the existing theories of strength works best in metallic materials subjected to short pulses of micro- or nanosecond range. Recomme ndation are given on the optimal experimental design. (C) 2001 MAIK "Nauka/ Interperiodica".