LS-DYNA Interface 2020 Release Notes
Altair HyperMesh
New Features
- New Keywords
- New keywords for LS-DYNA solver have been added in the following keywords groups: *CONTROL_IMPLICIT, *DATABASE, *DEFINE_FRICTION, *SET_SEGMENT
- New Friction Entity and Update in Contact Keywords
- *DEFINE_FRICTION_{OPTION} keywords are now supported in a dedicated entity and moved out from the Property entity type. Also, the assignment of the friction entity is enabled in the LS-DYNA contact keywords, with a new option in the entity editor.
- Solver Fields Names Export
- Only for LS-DYNA R11.1 solver profile, a new export option “Solver Fields Names” in export panel is added. This option is activated per default and enables to export all LS-DYNA keywords with the corresponding solver field names, which enhances the readability of the exported solver decks.
Enhancements
- Updated Keywords
- Existing keywords from keywords groups *CONTACT, *CONTROL, *DATABASE, *MAT_ADD, have been updated regarding latest LS-DYNA solver version.
- Parameter
- Duplicate parameter names are maintained, renaming the parameter name with suffix "_1" instead of ".1". Enabled curve ID parametrization in *CONTROL_IMPLICIT_EIGENVALUE.
- Model Checker
- Some improvements have been made in the LS-DYNA Model Checker: performances, checks coverage and new icons to start the model checker and perform all automatic corrections.
- Penetration Tool
- Added new "Minimum penetration depth" option to filter out penetrations having minimum depth values.
- Seatbelt System Tool
- A new feature in the Seatbelt System tool, allows to automatically generate cross-sections on the belt segments for post-processing of the loads in the belt after the simulation.
- Pre-Simulation Tools
- The update of the crash models after dummy or seat pre-simulation, by reading of the dynain file written in LS-DYNA Long format or i10 format is now enabled.
Resolved Issues
- Correction of SSTYP and MSTYP value when SSID or MSID is of type *SET_SEGMENT_GENERAL
- Removed redundant import warning message coming after reading MAT_077_H & MAT_077_O
- In the Penetration Check Tool, the penetration fix option “Fix penetrations (include pairs with shared nodes, if any),” accessible from the contact pairs context menu, is functional.
- Issue fixed during deletion of Positions from the Dummy Browser
- The algorithm for penetrations check on components selection in case the shell mesh size is smaller than the component thickness has been improved to avoid to report non-physical penetrations.
- *DEFINE_FUNCTION was not selectable for *LOAD keywords. This is now fixed.
- NSM attribute in *SECTION_BEAM is now considered in the mass calculation only for ELFORM value between 1 and 5.
- Importing a LS-DYNA model when ID=0 into loads or boundary conditions keywords was not possible. This behavior is fixed and next available ID will be automatically assigned.
- Export of *PARAMETER keywords order has been improved to avoid exporting parameters after the parameter expression they are referencing.
Altair HyperGraph
Enhancements
- Reader enhancements
-
Summary Supported Format Support for binout file for R11.1 of LS-DYNA binout0000 Fixed an issue with a name and ID mismatch with STBOUT file from LS-DYNA STBOUT
Altair HyperCrash
Enhancements
- Keywords Support
- Support of *COMMENT keyword is added as a new entity.
Resolved Issues
- Correction of INCLUDE_TRANSFORM ID offset applied to *ELEMENT_MASS. Now Element ID offset is used.
- Correction in transformation calculation of POS6P transformation using POINT.
- Correction in result mapper when mapping thicknesses for LS-DYNA input decks.