Density

A material definition can include two different density values:

The density value, $ρ$ , described in this topic, which is a material option in the Simulation domain.
A density value that you can specify in the PLM attributes of the material.

By default, simulations refer to the density value in the Simulation domain for calculations of material behavior in an analysis. However, you can use the density value in the PLM attributes if you prefer.

You can define material density that varies with temperature or based on the values of field variables, but only when you use the density value specified in the Simulation domain.

Parameters


Input Data	Description
Density	Mass per unit volume of a material, $ρ > 0$ .
Use core material data	Uses the density value in the material's PLM attributes to populate the Density for this material option in the Simulation domain with the value of the Density in the material's PLM attributes.
Use temperature-dependent data	Specifies material parameters that depend on temperature. A Temperature field appears in the data table. For more information, see Specifying Material Data as a Function of Temperature and Independent Field Variables.
Number of field variables	Specifies material parameters that depend on field variables. Field columns appear in the data table for each field variable you add. For more information, see Specifying Material Data as a Function of Temperature and Independent Field Variables.