OptiStruct Interface 2021.2 Release Notes
OptiStruct Interface
New Features
- Darcy flow analysis
-
- New bulk cards to define Nodal Pressure (SPCP) and Inlet velocity (INLTVEL)
- Supported as new load management from the Solver Browser
- String-based input
- Labels export support extended for set (Elem, Grid), set segment (SURF) entities and their corresponding references
- OptiStruct Auto contact
-
- CONTACT bulk card enhancement to allow OptiStruct auto contact definition
- Supported related continuation lines
- Shear and Volumetric test data for viscoelasticity
- Shear and Volumetric test data are supported for viscoelasticity (MATVE) and frequency domain viscoelasticity (MATFVE). For both entries, the MODEL field can be set to:
- Nonlinear analysis enhancements
-
- Pressure-overclosure relationship can be specified through TABLEG/TABLES1 and defined in PCONT.
- Threaded bolts can be defined as part of a CONTACT interface by setting the CLEARANCE field to reference a CLRNC bulk data entry.
- Max stress criteria with FT=STRS is now available for PCOMP(G) and PCOMPP.
- Hyperfoam material type is supported with TYPE=FOAM in the MATHE bulk data entry.
- Optimization enhancements
- The following responses are available for Flow-based Forced Convection Topology Optimization:
Enhancements
- General enhancements
-
- Default solver card list for entities from Model and Solver Browser
- HMSET comments added for ordered/non-ordered sets on export
- MOTNJG subcase selection in linear static subcase
- Ignore export solver cards for empty entities such as Set, Set segment
- Read DMIG card if header entry is defined after column entry
- RBE2 to RBE3 config change to allow DOF update appropriately
Resolved Issues
- NSM defined for solid elements are honored in mass calculation
- DVPRELi creation issue from Entity Editor
- Exporting HM comments for convection card in large field format results in HM hang
- Plane strain element export with incorrect theta values
OptiStruct Interface
Reader Updates
- CNTF file reading is supported.
- When running topology optimization, mass, volume, volume fraction, and compliance are reported per iteration. HyperGraph provided reader support to extract these values on an iteration-by-iteration basis.