A THERMO-MECHANICAL ANALYSIS OF SHEAR YIELDING AND CRAZING NEAR CRACK TIPS IN GLASSY POLYMERS

摘要

This work addresses the effects of strain rate and temperature on the competition between the mechanisms of shear yielding and crazing in glassy polymers. To this end coupled large deformation thermoelastic-plastic calculations are conducted with a cohesive zone model of crazing embedded within the continuum framework.