Fatigue Input/Output

Fatigue input for Spot Weld Fatigue Analysis can be divided into the following categories:

Fatigue Element Identification

1. CHEXA elements can be used to define the weld element for Spot Weld Fatigue Analysis. In such cases, the grid point forces are resolved into corresponding forces and moments at the face centers of the opposing faces connected to the shells. The faces of the CHEXA element attached to the sheets should always consist of grid points in the following order.

   
   
   Figure 1. Faces of the CHEXA that Should be Used as Connection Faces with Shells for Spot Weld Fatigue

Additionally, the default weld element diameter of the CHEXA element for spot weld fatigue is equal to two times the smallest distance from the attachment face centroid to the edges.

Fatigue Parameters

Fatigue Material

Fatigue Loads

1. Similar to regular fatigue analysis, .

Output

Output for Spot Weld Fatigue Analysis is provided similar to regular Fatigue Analysis results. . The damage calculation .