NEW EXPERIMENTAL-METHOD FOR ANALYSIS OF THE DYNAMIC BEHAVIOR OF THIN PLATES UNDER HIGH-STRAIN RATES - EXPLOSION SOLICITATION

In this paper is described an original and experimental method in orde r to obtain both fields of displacement and strain, using a thin metal lic plate. The loading is generated by the detonation of a gazeous mix ture. The pressure induced transient and of high intensity, leads the plate to large displacements. After an accurate description of the exp erimental set-up, main results are presented. We can particularly foll ow the plastic waves, using both time and space description. Those res ults can be introduced in a numerical code, which can permit numericia ns to check viscoplastic laws parameters under high strain rates.