General Mechanical

General Mechanical

Contact Definition

    • Selami Tunca
      Subscriber

      How can I define proper contact for 3-bending beam test in Ansys APDL ?

    • peteroznewman
      Subscriber

      I suggest you initially analyze 3-point bending of the sample without contact.

      • Selami Tunca
        Subscriber

        It does not work. Why should I analyze without contact?

    • peteroznewman
      Subscriber

      Analysis without contact is simpler to setup and get a solution.

    • Selami Tunca
      Subscriber

      it is not possible to solve. I have rigid body motion error without contact.

    • peteroznewman
      Subscriber

      The sample length should be exactly equal to the distance between the support.

      You didn't show a coordinate system, so I will assume that the sample length is along the X axis, the Y axis is up and the sample width is along the Z axis.

      On the left end bottom edge of the sample, use a Displacement and set X, Y, Z to 0.

      On the right end bottom edge of the sample, set Y and Z displacements to 0.

      Now you have sufficient constraints and the system will solve if you apply a force to the row of nodes in the center on the sample on the top face.

    • Selami Tunca
      Subscriber

      I will try. Thank you

       

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