Dynamic Shear Band Development in Thermally Softening Viscoplastic Materials.

摘要

The problem of the initiation and growth of an adiabatic shear band in a thermally softening viscoplastic block of material being deformed in plane strain compression at a nominal strain-rate of 5,000 per sec. is studied. It is found that a shear band initiates at the site of the defect and propagates in the direction of maximum shearing. Keywords: Shear strength; Plasticity; Reprint; Shear bands; Thermal softening; Viscoplasticity. (KT)