Manufacturing Solutions

Die Stress Analysis

Die Stress Analysis

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Die Stress Analysis

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The Die Stress Analysis Process Manager is a function used to automatically transfer tool contact forces from stamping analysis to a structural model and an easy step-by-step setup of die stress analysis. This process is typically used on a die structure model that has a tet-mesh on the face where the loads need to be mapped.

As you move through the steps at the bottom of the window, you will see the Process Manager updating automatically. As each step is completed, a green checkmark is placed next to the step name.

1.To launch the Process Manager, under the Applications menu, click Die Stress Analysis.
2.In the Create dialog, select Create New Instance and enter a name in the Process instance name field. Alternatively, you can select Open Existing Instance and browse for that file name.
3.Click Create.
4.From the Materials menu, select the type of material to use to define the tool and click Apply.
5.The forming loads need to be selected in order to map them to the structural model. In the Results file field, select either RADIOSS or LS-DYNA as the solver used for stamping, and then click Browse to locate the files where the stamping simulations are stored.
Note: If LS-DYNA is chosen as the solver for stamping, you have to input an ncforce file. If RADIOSS is chosen as the solver for stamping, input the animation file (A001)
6.Click Apply. The Process Manager launches HyperView to query the model and create a list of components that are available in the stamping model.
7.After loading, use the Result part drop down list to select the component to map the loads/contact forces from and click Apply.  HyperView is launched again and will query the part for all the contact forces and create node loads so they can be mapped directly onto the structural part.
8.The next step is to select the structural part to map the loads to. Click comp, select the applicable components and click proceed, and click Apply.

Using linear interpolation, HyperMesh will create the structural loads. The z position of the part in the stamping model and the die structure need to be in the same position, so check that before moving ahead to mapping.

9.In the next dialog, create the holding points (constraints). Pick the nodes, constrain the translation and click Apply.
10.Next define the load case where in the die structure is going to be lifted. Select the nodes and define the lift height. Click Apply.

A rigid element, any necessary loads and load steps that are required for the die stress analysis are created.

11.The next step is to define and update the model with the materials and properties. After making the selections, click Apply.

Only the components with solid/shell elements will be shown in the table. 1D elements don’t need properties or materials to be assigned to them in Die Stress Analysis.

12.The final step in the process is to define the name for the export file and decide whether to just export the file or export the file and run the solver. Choosing Export&Run will export the deck and start running RADIOSS Linear.  


If you have finished the Die Stress Analyses process correctly, the Process Manager browser should be completed with green check marks. If not, go back and correct the issues.