This section describes the HyperMesh PAMCRASH2G interface. HyperMesh provides a complete pre-processing environment for preparing PAMCRASH2G data decks for analysis. HyperMesh can read existing PAMCRASH2G decks, create a model, display and edit PMACRASH2G cards as they will look in the deck, and write a deck for analysis. Although HyperMesh also offers limited post-processing capabilities in results translation you are strongly encouraged to exclusively use HyperView. To create PAMCRASH2G decks in HyperMesh, you must load the PAMCRASH2G user profile with the appropriate template to access the full pre-processing capability.
The following are the general comments about HyperMesh Interface for PAMCRASH2G:
Import and Export
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| • | The PAMCRASH2G supports PAMCRASH2G version 2009 - 2012 |
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| • | The PAMCRASH2G input translator also supports reading older PAMCRASH2G files 2002 -2004 and map into the loaded template. |
| • | PAMCRASH and PAMCRASH2G 2002 – 2008 templates are available in the installation and can be loaded by you. However they are no longer maintained. |
| • | During import all the GES associated with the solver keywords are mapped to entity sets in HM and associated with the solver entity. They are exported back as GES during export. |
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| • | In addition to the custom export options available in the export browser, several templates are available to export specific solver entities only as explained below. |
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Template Name
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Description
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control_modeldoc
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Exports only the model documentation.
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ctrlvol
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Exports only the airbag and chamber definitions.
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groups_nsmas
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Exports only the non-structural mass cards.
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groups_rigwa
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Exports only the rigid wall cards.
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groups_slint
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Exports only the sliding interface cards.
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groups_secfo
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Exports only the cross section cards.
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load
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Exports only the load and load collector cards.
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materials
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Exports only the material cards.
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property
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Exports only the property cards.
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sensor
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Exports only the sensor cards.
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sets
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Exports only the PAM-CRASH 2G groups.
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curves
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Exports only the function cards.
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parts
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Exports only the part cards.
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| • | PAM-CRASH 2G FE input reader cannot read input files prepared according to previous versions PAMCRASH. You must convert old files to the new format using the converter supplied by ESI. |
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Mass Calculations
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| • | The mass of each element is calculated by density * volume. Density is retrieved from the material associated with the element’s component. Several assumptions are made in mass calculation based on PAMCRASH2G solver. |
| • | For rigid bodies (RBODY) of type 3 with a user-imposed center of gravity and mass and inertia properties, the structural mass of the PART components are replaced by the rigid body mass. All other keywords besides the PART keyword are neglected in the RBODY type 3 mass calculation. Non-structural masses are not considered in the mass calculation panel (only structural masses are calculated). |
| • | The following table summarizes how each supported element except shells and solid in the HyperMesh PAM-CRASH 2G interface performs these calculations: |
PAM-CRASH 2G
Keyword
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Area
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Volume
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Mass
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Notes
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MASS /
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0
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0
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|
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SLIPR /
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0
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0
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0
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RETRA /
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0
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0
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0
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SENPT /
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0
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0
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0
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PLINK /
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0
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0
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0
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RBODY /
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0
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0
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$RBODY_MASS
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Rigid body type 3.
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NODCO /
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0
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0
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0
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RBODY /
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0
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0
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$RBODY_MASS
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Rigid body type 3.
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NODCO /
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0
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0
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0
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RBODY /
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0
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0
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$RBODY_MASS
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Rigid body type 3
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SPRING /
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0
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0
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Material type 220.
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SPRGBM /
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0
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0
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Material type 223.
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BAR /
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0
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Material types 200, 201, 202, 203, 204, and 205.
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JOINT /
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0
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0
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0
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KJOIN /
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0
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0
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0
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|
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See Also:
Importing Files
Exporting Files
Model Browser
Solver Browser
Connector Browser
Include Files
Using the Pam-Crash 2G Utility Menu
Supported Pam-Crash 2G Keywords
Unsupported Pam-Crash 2G Keywords
Solver Conversion
