Press Fit Simulation in Optistruct - as part of a loading path

sbalazs
sbalazs Altair Community Member
edited October 2020 in Community Q&A

Hi ,

 

I have to create an analysis for a large assembly  where:

 

1 in the first step I have to pretension some screws

2 then I have to apply a press fit

3  then have to pretension some other screws

4 apply some loads

 

My question would be, if I create a PCONT with CLEARENCE option for the press fit, how can I be sure that this will make his effect just in the second step by me and only there and not on every other steps too, since for this option there is no need for an explicit loadstep.

 

Thanks and regards,

Szilard

 

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Answers

  • sbalazs
    sbalazs Altair Community Member
    edited January 2020

    I think that a possible solution could be if I could turn on and off the contacts on different loadsteps. Is this possible in Optistruct? If yes, how?

     

    Thanks in advance for your answers!

     

    Regards,

    Szilard

  • Rahul Rajan_21763
    Rahul Rajan_21763 New Altair Community Member
    edited January 2020

    Please check for MODCHG bulk data entry .

    MODCHG: Defines parameters for removing and/or reactivating contact interfaces and/or elements. 

  • sbalazs
    sbalazs Altair Community Member
    edited January 2020

    Thank you!

     

    Szilard

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