How to solid rigid body contact need to notice?

Altair Forum User
Altair Forum User
Altair Employee
edited October 2020 in Community Q&A

I have do the rigid body contact. At here because the RBE2 can't constraint over 100000 nodes.

 

So at my model I modify the young's modulus.

 

Because I can do the analysis in simple model, but when I apply the instruction in the full model.

 

The model will divergent at the last step, but it still complete the analysis.

 

I have set the PCONT > STIFF > HARD and my contact group set the pattern to make it better convergence.

 

Where should I notice about the rigid boy contact?

 

 

Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited May 2018

    Where should I notice about the rigid boy contact?

     

    I am sorry, do you mean the status of the contact?

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited May 2018
  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited May 2018

    @LKZ

     

    DId you try CONTF to output contact forces?

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited May 2018

    @Prakash Pagadala 

     

    I think here is my expression error.

     

    My problem is my model can't constrain all RBE2 to let the model be rigid.

     

    So I modify the young's modulus in my case.

     

    But at the situation it will divergent at the last step.

     

    I think maybe is the contact problem so I want to ask you for my setting.

     

    My setting like this

     

    1. PCONT > STIFF > HARD

     

    2. My contact group set the pattern 

     

    At here where should I notice or forget to set in rigid contact?

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited May 2018

    Hi @LKZ Have you tried with RBODY and RBADD?