Crystallography classes

Overview

These classes provide basic crystallographic information for the crystal plasticity system. There are two key classes:

• Lattice
• SymmetryGroup

The SymmetryGroup class provides the symmetry operators for a particular point group. The Lattice class provides information about a particular crystal system, defined by a set of lattice vectors, a point group, and a set of slip systems. This information includes the cartesian slip system normal and direction vectors and the resolved shear stress calculation needed by other objects in the crystal plasticity module.