A New Crystal Plasticity Based Constitutive Model Incorporating Backstress for FCC Polycrystals

To overcome the current limitations of phenomenological models of predicting material response under complex strain path deformation a new hardening law is proposed. The model is calibrated with experimentally measured microstructural features during deformation. The new hardening law, in contrast to existing laws, can be completely determined from observations with very few free parameters. The model accounts for hardening due to interactions …