Contact type change during load step

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

Hello, 

 

I have set a Nonlinear quasi static analysis (type NLSTAT) with two consequent load steps (using CNTNLSUB option).

In my model two parts are gradually getting in contact (something similar as roller - plane contact), where also friction is taken into account.

In the first step a radial force is pushing the roller towards the plane and in the second step additional lateral force is applied.  Everything works fine, the results seem meaningful.

 

Now I would like to set a first load step with contact type SLIDE and the second (continuous) load step with friction in contact.

Is this possible in Optistruct?

Thanks for your help!

Best regards,

Matej

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited February 2018

    Hi Matej,

     

    Contact type change should not be an implication when using CNTNLSUB.

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited February 2018

    Hi Prakash,

     

    could you please provide any additional explanation why a contact type should not be changed when using CNTNLSUB?

     

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited February 2018

    Sorry,

     

    Contact type change should not be a PROBLEM as I don't see any limitation on contact type change at least on OptiStruct help.

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited February 2018

    But is it possible then to change the contact type during load steps in Optistruct?

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