There are several solver specific options available to OptiStruct and Nastran during export in the Options dialog.

When exporting a model, HyperMesh always tries to use the greatest precision when writing real numbers in small format. The following options in the Solver Options dialog will allow you to control precision and accuracy in the model.

Non-structural mass [NSM1, NSML1] must be referenced in case control for it to be applied in the model.  In order to make this process easier, the following option in the Solver Options dialog has been added:

The default behavior in HyperMesh when exporting RBE3 weight factors is to maintain all values defined by you, even if they have a value of 0.0. This behavior can be modified with the following option:

Others:

While rigid and rbe3 elements use the same ID pool in HyperMesh, equations and groups have separate ones. During creation, it is possible to use this situation to create duplicate IDs for MPCs as well. To resolve this, during export a solver option is available in the Export tab to renumber MPCs if duplicate IDs are present (Renumber MPCs if IDs are duplicated). This option will check for the highest rigid/rbe3 ID and renumber equation entities accordingly. Groups are not included in the renumbering functionality as contact IDs would be affected by renumbering.

The Export to gzip compressed file (.gz) option allows you to export files to .gz file format (gzip), which is PERMAS compressing tool. This format is directly read into their solver.

See the topic Permas Interface Overview for more information on duplicate ID pools.

There are several solver specific options available to Abaqus during export in the Options dialog.

Export Entities With Quotes

Abaqus does not support special characters or staring with numbers in entity names. In order to retain entity names during export, quotes can be added to entity names. By default, entities with quotes are not exported in the solver deck. Select this checkbox to export entities with quotes in the solver deck.

This option is only supported for the following entities: Components, Properties, Materials, Sets, and Groups.

Export *NMAP keyword

Exports the solver deck with the *NMAP keyword (default). Clearing this checkbox exports a flat solver deck without the *NMAP keyword.

Auto adjust RBE3 0.0 weight factor

When enabled, HyperMesh changes any 0.0 weight factor on RBE3 elements to the specified small value. This adjustment is only done in the exported solver deck. The original model values in the current HyperMesh session will not be modified.

Additional export options specific to Abaqus are available under Export options.

Export Id's

Each entity is assigned to an ID when it is imported into HyperMesh. In cases of Abaqus Interface, when you export the solver deck from HyperMesh, entity IDs will not be retained. By activating the Export Id’s option, entities will be assigned a range of IDs that are specific to each entity during export. Since more than one entity may exist, an alphabetic prefix is assigned to each entity in order to avoid a duplicate ID conflict.

For example, bumper-system will always have Part ID 2000000-2100000 across all carlines. Therefore, an engineer will have to isolate PIDs 2000000-2100000, if he wants to examine the bumper-system. This is essential in pre- and post-processing. Exporting the solver deck with IDs, will retain the prefix, ID and entity name.

Example for a surface entity with ID’s in solver deck (HM group):

*SURFACE, NAME = <Prefix><ID>;<name_of_surface>

Example for a surface entity without ID’s in solver deck (HM group):

*SURFACE, NAME = <name_of_surface>

When the Export Id's option is activated, you are able to edit the prefix for each entity by clicking Default Prefix. The Default Prefix dialog is arranged by HyperMesh entities. Each tab contains the entity which will be supported when exporting the ID’s into solver decks. You can change the prefix based on your own personal requirements. The Restore Default Prefix button allows you to reset the prefix for each entity. Instead of using letters from the English alphabet, you can also  use the “-“ symbol to filter the entities when exporting the ID’s.

Below is a list of entities and their corresponding prefixes that are displayed by default in the Default Prefix dialog:

There are several solver specific options available to LS-DYNA during export in the Options dialog.

Remove Numerical Suffix from Duplicate Titles

Removes numerical suffixes from duplicate titles.

Activate Transformations after Export Operation

Activates transformations after export operation.

Repeat Keyword Titles

Repeats keyword titles for each instance of the card.

Auto create property for COMPS with TETRA4/PENTA6/HEX8 elements

Creates properties for components that have TETRA4, PENTA6, and HEX8 elements

Remove include file reference based on export status

Removes include file reference based on export status.

There are several solver specific options available to PAM-CRASH2G during export in the Options dialog.

Activate Transformations after Export Operation

Activates transformations after export operation.