Weld Fatigue

The weld fatigue material option describes weld behavior in the normal and shear directions.

Table 1. Normal Stress Parameters
Parameter Description
S Range Normal stress range (not amplitude), which is the range of the cyclic stresses normal to the weld line.
Nf Number of cycles to failure in a constant stress range test.
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.
Table 2. Shear Stress Parameters
Parameter Description
Shear Range Shear stress range (not amplitude), which is the range of the cyclic shear stresses parallel to the weld line.
Nf Number of cycles to failure in a constant stress range test.
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.