General Mechanical

General Mechanical

Problems with Nodal label

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    • Oymegi
      Subscriber

      Hi,

      I have the following problem in mechanical APDL :

      I’m making an axisymmetric model with PLANE25 (imposed ETYPE) and I’m applying force loads at nodes with a FX, FY, MY and MZ labels (F,cm,FX,Value).

      But when it comes to apply MY and MZ load Ansys show the following warning :

      *** WARNING ***                        CP =     14.844  TIME= 17:32:34

       The NODAL LOAD label of MY is not part of the currently active set.    

       The current NODAL LOAD set is: FX FY FZ .                             

      Does this problem come from Plane25 elements ? (As I understood PLANE25 elements allow non axisymmetric loading )

       

      Thanks

    • Erik Kostson
      Ansys Employee
      Hi

      See the help manual (plane25) for more information.

      In general though axisymmetric FEA has X and Y degrees of freedom (plane25 has that also) -> FX and FY should be possible nodal loads as the warning indicates ('The current NODAL LOAD set is: FX FY FZ').
      So we do not have rotational degrees of freedom in axisymmetric elements -> hence moments (MY,etc) can not be applied to them (as the warning says: The NODAL LOAD label of MY is not part of the currently active set.).

      All the best

      Erik
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