I am trying run a tensile test simulation but my results are showing me that I am having a bending moment. How can i resolve this?

BryanN_22537
BryanN_22537 Altair Community Member
edited December 2023 in Community Q&A

I am trying to run a simple tensile test on a piece that I modeled. My part is comprised of different components that required me to use a contact analysis, Another thing to mention is that I'd like to have a uniform boundary condition and load so I must use the rigid body option or else the simulation will not run accurately . I used RBE2 for the boundary condition side and RBE3 for the pulling load side. 

 

This analysis requires a non-linear static analysis, therefore I must input load collectors (SPC and LOAD). For these, I selected a node to implement both the boundary condition and load vector. Since I already used the rigid body command, my understanding is that any node I select on the face will be okay for me select. the nodes I select are the nodes used for the rigid body.

After running the simulation, I look at the displacement contour in the x direction as that is the direction of the pulling load and there it shows that I have a bending moment. Can anyone help me fix this issue? 

 

Attached are photos as well as the hm and output files. 

 

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Answers

  • Paulo Libório
    Paulo Libório New Altair Community Member
    edited December 2023

    Hey there!

    I'm guessing it's got something to do with the internal serpentine like structure. You can see some rods sticking out:

    image

    I deleted everything except the rectangular component, and this is what I got:

    image

    Kind regards,
    Paulo Libório.

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