Dynamic failure mechanics

Advances in computing as well as measurement instrumentation have recently allowed for the investigation of a wider spectrum of physical phenomena in dynamic failure than previously possible. The current status and potential topics for research in dynamic failure mechanics are described in this arti cle. These include basic research in dynamic crack initiation and growth in brittle materials, elastic-plastic solids, heterogeneous solids, such as l ayered materials and composites, and adiabatic shear banding in ductile mat erials. Research that would benefit and advance practical applications such as aircraft hardening, micrometeorite impact shielding and high speed mach ining is also outlined. For each of the topics, research needs in terms of theory, numerical simulation and validation as well as experimentation are described. (C) 1999 Elsevier Science Ltd. All rights reserved.