Interactive texture- and finite-element simulation for modelling of complex deformation processes for hcp-metals

In this work, we couple a texture model with the commercial finite element (FE) program ABAQUS/Explicit by implementing it as user supplied material subroutine (VUMAT) in the FE-code. The texture model is based on the self-consistent approach by Lebensohn and Tomé. In this model every grain is considered as an inhomogeneous inclusion in a matrix, which represents the averaged mechanical properties of the polycrystal. Since twinning is an important deformation mechanism in metals with hcp-crystal structure, it should be considered in the simulation. This is achieved by using the predominant twin reorientation scheme developed by Tom é et al..The feasibility of the approach is demonstrated by simulating the rolling of the magnesium alloy AZ31B.