Adaptive mesh technique for the simulation of a forming metal sheet component.

The provided model showcases the forming of a metal sheet component.  Adaptive meshing technique is used to improve the results of the simulation, while minimizing the number of elements and, hence, the cost of simulation.  Altair® HyperForm® has been used in order to set this model up.  The model overview is displayed in Figure 1.

Figure 1: Model overview.


To set up the adaptive mesh technique a specific Card (/ADMESH/GLOBAL) and a Set (/ADMESH/SET) must be defined.

The /ADMESH/GLOBAL Card definition is shown in Figure 2.

Figure 2: /ADMESH/GLOBAL Card definition.

The next selections have been made for this Card:

The /ADMESH/SET definition is shown in Figure 3.

Figure 3: /ADMESH/SET definition.

The ADMESH/SET is used to define which elements will be remeshed and the criteria applied to remeshing decision.

The model simulation is displayed in Figure 4.

The remeshing process of the sheet metal is displayed in Figure 5.

Figure 5: Sheet metal remeshing process.