Characterisation of slip and twin activity using digital image correlation and crystal plasticity finite element simulation: Application to orthorhomic a-uranium

A team from the Department of Materials and Department of Engineering (Oxford) have collaborated on developing a dislocation-based constitutive model for coarse-grained a-uranium. 

The paper 'Characterisation of slip and twin activity using digital image correlation and crystal plasticity finite element simulation: Application to orthorhombic a-uranium' includes the interactions between slip and twin systems, coplanr and non-coplanar twins. 

The strength of the plastic deformation mechanisms were found using in-situ digital image correlation experiments and optimisation procedures. 

The method presented in this paper can be used to find the critical resolved shear stress and hardening coefficients of other coarse-grained materials..