I'm trying to answer a question for a colleague. He is trying to output the principal stress vectors along a weld. From there they want to break the P1/2/3 stresses into XYZ components to see the stresses along the weld and perpendicular to the weld to attempt to predict failure.
I can not figure out how to get principal stress vectors. All I see are values and the node location but not a unit vector to indicate direction of the stress. Is this possible with SW? More generally, is there a better way to predict failure at the weld?
Also, is there any way to output P1 P2 and P3 at a given node (MAX P1 location for example) or all nodes in one list. It seems I have to output 3 separate lists and then combine them myself in excel.