Tie Contact DOF

Martín Soriano
Martín Soriano Altair Community Member
edited August 2022 in Community Q&A

I have two plates with a tie contact. I wanted to have sliding between both plates without making a nonlinear analysis
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I saw that Tie contacts have the field DOF. Does the purple plate is going to slide in the x direction if I put DOF: 23? I was wondering if the DOF field restrict the movement of the nodes, and if you delete the number 1 in the DOF field, the plate now is now allowed to move in the x direction
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Best Answer

  • Robinson Ferrari_20451
    Robinson Ferrari_20451
    Altair Employee
    edited August 2022 Answer ✓

    Hi Martin,

     

    It's possible to modify the DOFs only for MPC ties.

    Add CONTPRM, TIE, MPC, and then you can define DOF23456.

    Please check the file attached and let me know if it works for you.

    And then, please mark the answer as correct to help others.

    Thank you very much,

Answers

  • Robinson Ferrari_20451
    Robinson Ferrari_20451
    Altair Employee
    edited August 2022 Answer ✓

    Hi Martin,

     

    It's possible to modify the DOFs only for MPC ties.

    Add CONTPRM, TIE, MPC, and then you can define DOF23456.

    Please check the file attached and let me know if it works for you.

    And then, please mark the answer as correct to help others.

    Thank you very much,

  • Adriano A. Koga
    Adriano A. Koga
    Altair Employee
    edited August 2022
    Robinson Ferrari_20451 said:

    Hi Martin,

     

    It's possible to modify the DOFs only for MPC ties.

    Add CONTPRM, TIE, MPC, and then you can define DOF23456.

    Please check the file attached and let me know if it works for you.

    And then, please mark the answer as correct to help others.

    Thank you very much,

    additionally, you may want to take a look at Contact SLIDE, as it works the same way in linear analysis, by keeping frictionless sliding in the contact plane, and no opening/separation in the normal direction.

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