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[geeky_nerd2509]

Ques1 : Do anyone know , how the transformation of result values is carried out for non linear analysis . Suppose we transform results at a given node/element from local/native coordinate system to absolute rectangular coordinate system. What is the principle behind that CSYS transformation, is it similar to one we do for linear analysis solution type or different ?

Ques 2 : Do we take into account the deformation also while transforming the coordinate system for non linear analysis solution?

[Aniket]

which results are you referring to here? Let's say you are referring to deformation results, in any analysis, the solver would calculate the final position of the nodes, and total deformations would be simply the distance between the final and the initial. This wouldn't change even when you change coordinate systems.
-Aniket
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