Author(s)

Y. Katz, H. Alush & A. Bussiba

Abstract

Localized quasi-adiabatic shear bands (QASB) which are marked and accentu- ated under high strain rates actually dominate deformation/failure behavior in metallic and non-metallic systems. Particularly in rapid deformation rates, nu- cleation and growth of non-crystallographic, transgranular and non-isothermal localized bands are enhanced with direct implications on various processes. These include, machining, forming, erosion, fragmentation and armor/ penetra- tor performances. The current phenomenological study adopt a material approach while em- phasizing the fine-scale features. Beside some illustrations even in non-metallic materials, two polycrystalline metallic systems were further elaborated. Here, the 2090-T81, Al-Li alloys, with high symmetry crystal structure and the rela- t

Keywords