I'm having troubble constraining the rotational DOF (of an RBE2 reference node) in an axisymmetric analysis. First I noticed that Mentat just ignored this request, just applying the translational constraint on the node; then, after manually editing the .dat file to what I believe should be the correct form of the FIXED DISP card, I still couldn't make Marc actually constrain it (from the .out file I see that only the translational DOF is constrained). Following is the 3rd to 10th block of the FIXED DISP card (excl. blocks 6 & 7) that I tried:
Then I tried constraining all the rotational DOFs, in case there would be some convention regarding the (single) rot DOF in an axisymmetric analysis, viz.
Still, the .out file tells me I'm just constraining DOF 1...
I have successfully constrained the rotational DOF in Marc in 3d analyses, so I know that is possible; is it not possible to do the same in axisymmetric analyses?
In Axisymmetric models, you don't need to fix in the Y dof as it is the radial direction. Hence there is no need to constrain rot Z also. Why are you trying to constrain rot Z?
In Axisymmetric models, you don't need to fix in the Y dof as it is the radial direction. Hence there is no need to constrain rot Z also. Why are you trying to constrain rot Z?