I am working on laterally loaded piles in Plaxis 3D. The pile is Hollow with plate elements and I defined it as a rigid body in model. By using Line cross section in Tools option , I am not getting correct curve along the length of the pile.
If you have modeled pile with plate elements and then converted it to rigid body, then you would only be able to extract pile displacement (which will be uniform as in the case of rigid body of infinite stiffness). BM and shear forces can be obtained only if you convert it back to beam elements. You can of course increase the stiffness of the pile if they are rigid but remember to reduce the interface Rinter or there will be compatibility issues.