WARP3D

What's new in WARP3D 17.5.9:

• A significant new capability is now available to output key state variables for the material models, including user-provided UMATs. Such variables include, for example, the backstress components for kinematic hardening in plasticity, elastic strain components for plasticity, equivalent plastic strain rates, detailed slip system status for the crystal plasticity model, etc. State variable output is provided in flat files of element results (text or stream format).
• The WARP3D interface to UMATs and other Abaqus compatible user-routines has been expanded and re-organized. Appendix I on User-Routines has been re-written to describe these improvements.
• The warp3d2exii post-processing program has undergone significant updates and improvements. Earlier versions of this program were named pat2exii. This is a Python program that reads a WARP3D generated flat file for the model description and flat files of nodal and elements results (including new state variables mentioned above) then produces an ExodusII (.exo) database file. We use this capability to enable post-processing with ParaView.
• Processing of user-delined multi-point constraints and those generated automatically by tied mesh operations is much improved. Earlier code versions forced an un-necessary increase on the number of global Newton iterations required for convergence (solutions were correct by computations required un-necessary time).