7.8. Unique Material-Based MAPDL Commands

When Mechanical creates the input file for the Mechanical APDL solver, there are certain commands, described below, the application uses to provide additional information, capabilities, or support for legacy data.

Material Identification

When the Mechanical application creates the input file for the Mechanical APDL solver, the material property labels shown below are used on the MP command. The application stores these identifiers in the result file along with other material data. You can use these material identifiers to query the Engineering Data (or Granta) application for complete material data (not available in Mechanical APDL). You would typically use these identifiers when creating a data processing framework.

  • UMID: This material identifier is assigned to a material when it is created. For Granta materials, this is the identifier of the material in the database.

  • UVID: This material identifier is assigned when a material is being transferred from Engineering Data to another component, such as the Model object of an analysis system in Mechanical.

Legacy Total Strain Input for Bilinear Isotropic or Kinematic Hardening

When Engineering Data imports data for these models prior to Ansys 2024 R2, the data is using total strain. The data should be converted or modified to use plastic strain if possible. If the total strain input is used then when the Mechanical application creates the input file for the Mechanical APDL solver, the material property labels shown below are used on the TB command. These options are deprecated.

TB,BISO

TB,BKIN