3D Design

3D Design

ANSYS APDL: Convert 2D-axisymmetric model to a 3D model

    • Shwanne Sánchez Damas
      Subscriber

      Good afternoon,

      I briefly describe what I do. Initially I have a wire that goes through a drawing process which has been generated in a 2D-Axisymmetric model (Figure 1). The element type for the wire is PLANE82, with the axisymmetric property active. So when the wire goes through the drawing I get a wire with residual stresses and on that wire I need to perform a torsion test (Figure 2). In other words, I need to generate a 3D model of the wire from the 2D-Axisymmetric wire to be able to run the torsion test on this 3D wire. I've searched a lot but honestly I can't find any ideas on how to achieve it. Any suggestion is welcome, I will be very grateful. Thank you very much in advance.

       

    • Vigneswaran Sridharan
      Ansys Employee

      Hi, 

      Try performing a general axisymmetric analysis of the model. This analysis behaves like a 2D-axisymmetric analysis with additional DOF for bending and torsion.

      I recommend watching this AIC video to understand how to convert 2D to 3D models.

      " target="_blank" rel="noopener">Efficiently Analyzing Structures with a Constant 2D Profile Using Ansys Mechanical 

      In MAPDL, use Plt Ctrls>>Style>>Symmetry Expansion>>2D-axisymmetry as an equivalent command to symmetry option in WorkBench.

      Other help links:

      Performing a 2D to 3D Analysis

      Thanks!

  • Shwanne Sánchez Damas
    Subscriber

    Hi! Thank you very much for your answer, but when I try to access the links that you have left me, an access denied message appears. Can you please help me solve this problem so that I can know your answer as soon as possible please? Thank you very much in advance, I will be waiting for your answer.

  • Vigneswaran Sridharan
    Ansys Employee

    Hi,

    Please check this URL:

     

    (to understand how to convert 2D to 3D models.)

    Geometry Representation - ANSYS Innovation Courses

    Other help links:

    Performing a 2D to 3D Analysis

    Thanks!

    • Shwanne Sánchez Damas
      Subscriber

      I thank you very much for your answer. I have an additional question, in reference to this post, my goal now is to perform a nonlinear torsion test on this 2D-Axisymmetric result. So I would like to know if any of these possibilities exist in ANSYS APDL:

      1. Directly apply the torsion moment in the obtained 2D-Axisymmetric model, since in the manual where it describes the elements, it indicates that this element has the following:

      PLANE 182:

      KEYOPT(3)

      Element behavior:

      6 -- Axisymmetric with torsion (KEYOPT(1) = 0 only)

      So, can torsion be applied directly to this result in 2D-Axisymmetric?

       

      2. Convert this 2D-Axisymmetric model into a 3D model to apply the torsion moment, since I not only want to visualize the model in 3D, but to be able to apply the torque/torsion moment there to perform the non-linear torsion analysis.

      Or if you can recommend me another solution, I would be very grateful. I thank you in advance for your attention, I ask you to please help me clarify these doubts.

       

  • Viewing 3 reply threads
    • You must be logged in to reply to this topic.