Microstructural pattern formation in finite-deformation single-slip crystal plasticity under cyclic loading: Relaxation vs. gradient plasticity
Laminate patterns in finite plasticity can lead to strong hardening which is accounted for by a new hardening update model. A degeneration of the stressstrain hysteresis due to the formation of permanent slip bands is predicted during cyclic loading. Popular lamination-based and gradient plasticity theories yield significant differences in the predicted microstructure evolution. Laminate migration in gradient-plasticity model for low hardening. Delayed microstructural patterning due to domain wall energy is predicted.
microstructure plasticity cyclic loading relaxation finite deformation