Evaluate the extraneous stiffness parameters using material properties at a specified temperature.
Simulation Composite Analysis supports temperature dependent material properties for unidirectional composites. If the input file supplied to xStiff contains such a material, it may be necessary to evaluate the extraneous stiffness parameters using material properties at a specific temperature. To do so, the /temp argument can be supplied in the Command Shell. The image below shows an example of supplying the temperature of the model via the Command Shell.
There are several things to note for supplying the temperature:
- If the temperature given is outside the range of temperature values in the material data file, the properties closest to the supplied temperature will be used. In other words - xStiff does not extrapolate material properties.
- If a units system other than the default units (Newtons, Meters, Kelvin) is used, temperatures are not converted in xStiff. Therefore, you must supply the temperature in Kelvin.
- If the model represented in the input file spans over multiple temperatures, it is up to you to choose a characteristic temperature most representative of the entire analysis. Abaqus does not allow varying input extraneous stiffness parameters.
- If an input file contains temperature dependent materials but /temp is not supplied, the first set of material properties in the material data file is used.