Is there a way to know which portion of a non-circular failure surface is assigned a particular strength when using an anisotropic material?

When using the generalized anisotropic material in Slide, in order to see which parts of the failure surface are associated with which strength parameters, turn on Slices and Slice Data.

Slide-slicedataanisotropic.jpg

Slice Data in Slide Interpret

 

At the end of the list of slice data is the material id associated with the base of each slice.  You can also look at the strength parameters assigned to the base to double-check which material properties are being used.