The 16th user material constant is a flag that specifies the moisture condition for the environment of interest in the material data file. The flag can assume three values:
This constant is only applicable to material files that contain multiple sets of material properties. If the material file contains a single set of material properties, constant 16 can be blank. Constant 16, in combination with constant 7 (temperature), dictate which set of material properties to use in the analysis.