Neper2CAE and PyCiGen: Scripts to generate polycrystals and interface elements in Abaqus

Two codes have been developed: one allows columnar polycrystal geometries generated by software such as Neper or DREAM3D to be imported into the Complete Abaqus Environment for further geometric manipulation and meshing with arbitrary element types; other code generates zero thickness, four noded interface elements at boundaries between crystals. Together these allow intergranular fracture simulations performed easily in Abaqus. This approach can automatically create different grain structures mechanical properties of metals crystalline materials simulated. is important it enables sample variability that observed experiments reproduced. These scripts extend simulation capabilities finite solver