Dynamic behavior of materials induced by explosive loadings initiated using wire explosion techniques

Wire explosion techniques have been applied to produce two kinds of detonat ion waves-plane and cylindrically-diverging detonation waves-in powder PETN , supplying explosive loading for the study of the dynamic response of mate rials. The plane detonation waves are transferred to one-dimensional triang ular-shaped pressure pulses in metal plate specimens, causing spall fractur e. The cylindrically-diverging detonation waves are used to study the unifo rm expansion of steer cylinders at high strain rates. These dynamic behavio rs are investigated using diagnostic tools and hydro codes. (C) 1999 Elsevi er Science S.A. All rights reserved.