Define Temperature Dependent Properties
Define elasticity modulus, Poisson’s ratio, thermal expansion coefficient, density, thermal conductivity, and specific heat capacity with respect to temperature.
- In the menu bar, click Settings > Material database.
-
In the dialog, select a material to apply temperature dependent
properties.
Elasticity modulus, Poisson’s ratio, thermal expansion coefficient, density, thermal conductivity, and specific heat capacity allow temperature dependent input via material database.
-
To add temperature curves, select Add Elasticity modulus-temperature
curve, Add Poisson’s ratio-temperature
curve, Add Thermal expansion-temperature curve,
Add Density-temperature curve,
Add thermal conductivity-temperature curve, and/or
Add specific heat capacity-temperature curve.
Note: Non-zero values should be set for temperature independent elasticity modulus, Poisson’s ratio, thermal expansion, density, thermal conductivity, and specific heat capacity along with temperature dependent properties to complete material definition. The curves are utilized only if the Use temperature dependent properties option is checked in thermal transient and/or structural thermal setup. Otherwise, the non-zero nominal values are used.
- Define the temperature curve(s) in one of the following ways:
Method Process Import from CSV - Click Import CSV.
- In the File browser, select the desired .csv file and click Open.
Create manually - Click Add row.
- Enter the temperature and relevant property values. At minimum, two points are required.
The results are plotted in the XY graph in the dialog. You can use the scroll wheel to zoom in, the left mouse button to pan, or the Refit button to reset the graph.
CSV File Format
Elasticity-modulus-Temperature Curve
- CSV Fields
- Temperature – Numerical value
- Example File
-
Temperature,Elasticity-modulus 24, 195159.3 90, 192217.2 150, 187313.7 200, 183390.9
Poisson’s ratio-Temperature Curve
- CSV Fields
- Temperature – Numerical value
- Example File
-
Temperature, Poisson’s-ratio 150, 0.28 260, 0.3 370, 0.32 480, 0.28
Thermal-expansion-Temperature Curve
- CSV Fields
- Temperature – Numerical value
- Example File
-
Temperature, Thermal-expansion 100, 0.0000163 200, 0.0000167 300, 0.0000171 400, 0.0000176
Density-Temperature Curve
- CSV Fields
- Temperature – Numerical value
- Example File
-
Temperature,density 20, 7.91E-09 90, 7.88E-09 200, 7.84E-09 320, 7.79E-09
Thermal Conductivity – Temperature Curve
- CSV Fields
- Temperature – Numerical value
- Example File
-
Temperature,conductivity 1.136,238.168 77.273,243.893
Specific Heat Capacity – Temperature Curve
- CSV Fields
- Temperature – Numerical value
- Example File
-
Temperature,capacity 17.647,862.245 75.63,918.112 134.454,948.724