COMPUTATIONAL SIMULATION OF FLOW LOCALIZATION BEHAVIOR

The present article provides a perspective for computational predictio ns relating to flow localization under a wide range of deformation rat es for a variety of materials characterized by constitutive equations incorporating: the strain-rate. and temperature sensitivities, and str ain-rate-history, temperature-history, and strain-gradient dependences of the flow stress. The regularization schemes to remedy the problems associated with spurious mesh sensitivity and incorrect convergence i n finite-element prediction of flow localization behavior are reviewed , Various aspects of flow localization behavior of plane strain blocks with different shapes and sizes under a wide range of tension rate ar e discussed on the basis of computational simulations.