HS-1670: Set Up a RADIOSS Model

This tutorial demonstrates how to parametrize an input deck via HyperMesh and subsequently set up a Radioss model in HyperStudy.

Radioss simulations can be directly integrated into HyperStudy without any pre-processor such as HyperMesh. The integration takes place through interpreting variables in /PARAMETER cards in starter files. Thickness and Young's Modulus values will be the input variables of interest.

Add Parameters in HyperWorks

  1. Launch HyperWorks and open the TENSILE_TEST.hm file from your working directory.
    Tip: Verify the Solver Interface is RADIOSS.
  2. From the Model Browser, double-click the SHELL1 property.
    Tip: If necessary, you can enable the Model Browser from the menu bar by clicking View > Model Browser.
    The Properties/PROP/SHELL Browser opens.
  3. From the Properties/PROP/SHELL Browser, click next to Thick and select Parameter > Create from the context menu.
    The Create Parameter dialog opens.
  4. In the Create Parameter dialog, enter shell_th for the Name and click Close.


    Figure 1.
  5. From the Model Browser, double-click the MAT_LAW2_PLAS_JOHNS material.
    The Materials/MAT/LAW2_PLAS_JOHNS Browser opens.
  6. In the Materials/MAT/LAW2_PLAS_JOHNS Browser, click next to E and select Parameter > Create from the context menu.
    The Create Parameter dialog opens.
  7. In the Create Parameter dialog, enter Law_2_E for Name.


    Figure 2.
    The Parameters are created.


    Figure 3.
  8. From the menu bar, click File > Export > Solver Deck .
  9. Export the solver deck as TENSILE_TEST_0000.rad to the working directory.
    You can open the solver deck in a text editor of your choice to view the parameters.


    Figure 4.

Set Up RADIOSS Model

  1. Start HyperStudy.
  2. Start a new study in the following ways:
    • From the menu bar, click File > New.
    • On the ribbon, click .
  3. In the Add Study dialog, enter a study name, select a location for the study, and click OK.
  4. Go to the Define Models step.
  5. Add the RADIOSS model by dragging-and-dropping the TENSILE_TEST_0000.rad file from the Directory into the work area.
    The Resource, Solver input file fields are populated.


    Figure 5.
  6. Click Import Variables.
    Two input variables are imported from the TENSILE_TEST_0000.rad file.
  7. Go to the Define Input Variables step and review the input variables.


    Figure 6.
  8. Go to the Test Models step and click Run Definition.
An approaches/setup_1-def/ directory is created inside the study Directory. The approaches/setup_1-def/run__00001/m_1 directory contains output files, which is the result of the nominal run.