Thermal Material Properties

Verify that all bodies to receive temperature data from Mechanical are made of temperature-dependent materials. The energy model must be on. For this tutorial, you are interested only in the material properties of the core.


Important:  When using the same material(s) in multiple participants, take care to ensure that common properties (for example, conductivity) are consistently defined. This consideration is often relevant in analyses involving thermal data transfers.


  1. In the Project Manager, expand CoilAndCore / Definitions / Materials.

  2. Double-click steel_1010.

    The View / Edit Material dialog opens.

  3. In the Properties of the Material table, verify that for Bulk Conductivity, the Thermal Modifier is set to the following expression:

    1.0/(1.0+0.00094*(Temp – 22))

    Specifying a thermal modifier for the material ensures that the material is temperature dependent.

  4. Click Cancel to close the dialog.

This is the site of the two-way coupling, where Maxwell generates losses and sends them to Mechanical for a thermal simulation. This is also where Maxwell receives the temperatures generated by Mechanical and adjusts material properties and electromagnetic fields solutions accordingly.

Because thermal solutions are being solved on both sides of the coupling interface, material thermal properties must be consistently defined by both participants. Later, when you do the thermal setup, you can verify that the Mechanical and Maxwell models are made of the same material and have compatible temperature-dependent properties.