|
Taylor Bishop Hill Lattice Rotation
|
| The Taylor Bishop Hill (TBH) model of crystallographic lattice rotation is an important model for the development of lattice-preferred orientations in naturally and synthetically deformed rocks, metals and ceramics. The model describes intracrystalline deformation in terms of slip along discreet slip systems, which are different for different materials. As the crystal slips along a slip system, the crystallographic lattice reorients into alignment with respect to the bulk flow field in the rock. By this mechanism, a lattice preferred orientation microstructure develops.
The ELLE microstructure modeling program simulates TBH by calculating lattice reorientations for discreet time steps during simple shear using the finite element code BASIL. These pages provide a brief overview of the TBH theory, how TBH lattice reorientations are simulated in ELLE and presents an example using ELLE. |