Enlarged finite strain modelling incorporating Adiabatic Shear Banding and post-localization microvoiding as shear failure mechanisms
Résumé
Adiabatic Shear Banding (ASB) and its consequences are considered as deterioration mechanisms incorporated in the dynamic plasticity modelling for high-strength metallic materials, following the authors’ contributions during the last decade. A three-dimensional framework including ASB–induced anisotropy and starting from a specific scale postulate covers a range of dissipative phenomena and ASB–related material instabilities. Its recent developments, based on experimental evidence for Ti-6Al-4V alloy, include post-localization void-sheet formation and growth in the wake of a band cluster. Some structural applications are presented and discussed.