Storing unsupported parameters and commands at import (Simcenter Samcef)

When you import a Simcenter Samcef model into Simcenter 3D, imported data that are not compatible with the selected analysis and solution types are stored in an external file with _epilog.dat as the file extension.

In this file, these data are stored using the .SAUVE BANQUE text formatting layout. The data IDs are retained.

In the imported model, this file is referenced in the File (.INPUT) field of a User Defined Text epilog modeling object (General page of the solution).

Exceptions

• Unsupported solutions or subcases parameters are stored in the specific User Parameter field in the User page of the solution or subcase.For more details on solutions or subcases parameters, see Importing solution parameters (Simcenter Samcef).

• Unsupported parameters of most of the contact and glue simulation objects are stored in the User Defined Parameters of the Advanced Parameters page of the simulation object.

Checking your model after import

If you modify the imported model by adding or suppressing some entities, and then you export it, you must check that the epilog data does not interfere with the model data.

The most common issue is a label conflict between the model and entities that are stored in the User Defined Text epilog file. For example, suppose you import a Samcef model that contains three materials labeled 1, 2, and 3. The first two materials are isotropic and the third one is a Samcef Traction material.

• The first two isotropic materials are imported, and their labels in the software are the same as in the Simcenter Samcef model (that is, 1 and 2).

• The Traction material does not exist in the Simcenter Samcef environment. Thus, it is not imported, but is stored in the User Defined Text epilog. The related Samcef .MAT command in this file will be:.MAT  I 3 BEHAV "TRACTION" YT 21000 YC 34000 ...

• If you define a new material in the model, by default, its label will be 3 because the software does not take the epilog labels into account when it assigns default labels for new entities.

• When you export your model, the Simcenter Samcef input file will contain the following lines:. MAT   I 1 BEHAV ... YT ... I 2 BEHAV ... YT ... I 3 BEHAV ... YT ... The lines are followed by the lines extracted from the User Defined Text epilog:.MAT I 3 BEHAV "TRACTION" YT 21000 YC 34000 ...The new material 3 of the model has been overwritten by the Samcef Traction material stored in the User Defined Text epilog during the import.

Checking for unsupported elements and renamed materials

When you import an unsupported element that is associated with a material, the following occurs:

• The element is not imported, but it is written to the epilog file along with the associated material.

• The material is imported into Simcenter 3D Pre/Post.

However, because Simcenter Samcef renames materials when you export them, you must update the material name in the epilog file to match the name in Simcenter 3D Pre/Post. For example, a material named Rubber is renamed as follows:

FEM_file_name::Rubber

To fix the problem, you must edit the epilog file to use the name of material as it appears in the FEM mesh collector.

After you rename the material in the epilog, create a User Defined Text - Epilog modeling object to import the updated epilog file. For more information, see Customizing a Simcenter Samcef input file with user defined text.

Look up more details

File Import dialog box (Simcenter Samcef)

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Storing unsupported parameters and commands at import (Simcenter Samcef), Simcenter 3D 2021.1 Series

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