Tips & Tricks

Why it is useful to describe problems in terms of non-dimensional parameters and which ones are the main important in solidification?

A dimensionless quantity is a quantity without any physical units. Such a number is typically defi ned as a product or ratio of quantities which do have units, in such a way that all units cancel. Dimensionless quantities are widely used in the fields of physics and engineering but also in every day life.

Make an independent setup from existing pre and rst files in PAM-STAMP

Sometimes only rst files there are available and dependent pre file of an intermediate stage setup (lost data, picking with a process variant, …), which is not possible to run in another PAM-STAMP version, usually in newer version. It is possible to create a pre file independent on preceding rst files.

Determination of Krupkowsky parameters for hardening curve

In case there are no measured material data for simulation purposes, it is possible to determine hardening curve from information usually provided by material supplier.

How to import a PAM-STAMP result into CATIA V5 with VRML export format ?

For a comparison of the virtual stamped part and the nominal CATIA V5 part one can use PAM-STAMP, or go back to CATIA. Since the meshed part is not easily converted into surfaces again, one solution is to use an overlay of the CAD part and of a VRML export of the stamp part.

How to encrypt material data sets in PAM-STAMP?

Major automotive companies spend a lot of money to describe all materials used in their simulation processes. To ensure simulation quality also at supplier sites, they want to give the material data sets to them, but not for free. One half of the solution is material encryption, the other a predefined expiration date.

Boundary layer meshing with CFD-ACE+ [video format]

The accuracy of a CFD solution is strongly dependent on how well the mesh resolves geometry and flow features. This is especially true for near wall regions (boundary layer) where viscous forces are not negligible compared to inertial forces.

Small collection of 3D meshed symbols for illustration purposes

During a project the need to visualize the functionality in 3D arose and some 3D symbols were created, which are now made available as a goody.

How to find out what forces are working inside the sheet or tube section ?

If you need insight on the restraining force of a geometrical drawbead or want to know the transmitted force in a sheet or tube section, you can define a force gauge.

Part to part positioning based on mesh geometry

Sometimes the car coordinate system is not available with the stamped part. So if one wants to map stamp results, to an assembly operation, first of all the part needs to be transformed to the right position.

How to check what software version you are running

There is a very fast and easy way to verify what software version you are running for your ESI CFD applications. You most likely know that this information is available for the GUI by clicking on 'Help → About ...', and for solvers by looking in the output file.