Hi

Thank you so much for your help, especially to Mr. Schotte. It has been really really helpful. I am very grateful. I got various model results. Now there is one thing I need to improve.

I am using Geostatic stress to input initial principal stresses(X,Y,Z) . Now the actual initial principal stress orientation are not the same as model XY. They are 40-45 degrees with model XY. Z is vertical so Z is the same. so how to input these 45-degree initial principal stresses?  I did a brief drawing to make it clear. I think I need to define local coordinate orientation. I checked the manual. For geostatic stress input type. I don't see the option of using local coordinate orientation. Even in CAE Load module, I don't see the option to create a local coordinate except using local material orientation in the property module. But I am assigning load instead of material properties? Do I have to use material orientation to assign initial stress orientation? I am not sure? Does anyone have any idea about it? Thanks for your help again!

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