Creating a Material

Create a material definition for the manifold and specify the material properties that are required for a thermal analysis.

In general, given the type of analysis, you specify the following material properties:
  • For steady-state heat transfer analyses, you specify:
    • Thermal Conductivity
  • For transient heat transfer analyses, you also specify:
    • Density
    • Specific Heat
  • For thermal-structural analyses, you also specify:
    • Young’s Modulus
    • Poisson Ratio
    • Coefficient of Thermal Expansion

In your own cases, you can also specify other properties depending on the material and analysis requirements.

As this is a transient heat transfer analysis, you only specify the material thermal conductivity, density, and specific heat.

To set the material properties for this case, create a material definition and specify numerical values for density, thermal conductivity, and specific heat, without entering units. In this tutorial, the units used by Abaqus are automatically set to SI units.

  1. In the Model Tree, double-click the Materials container to create a material definition.
  2. In the material editor that appears:
    1. Name the material GRAY CAST IRON.
    2. Select General > Density and enter a value of 7817 (kg/m3).
    3. Select Thermal > Conductivity and enter a value of 55 (W/mK).
    4. Select Thermal > Specific Heat and enter a value of 446 (J/kg K).
    NoteIn Abaqus, all numerical values are cast in the same system of units. When coupling Simcenter STAR-CCM+ to Abaqus, you can control what units Abaqus uses from your Simcenter STAR-CCM+ simulation, through the External Links > Link 1 > Values > External Code Units Manager node. In this tutorial, you use SI units, that correspond to the default units specified under the External Code Units Manager node.
  3. Click OK to close the dialog.