CLEARANCE option in INTERFACES

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

I have a model with C shaped surface to surface contact as suggested below (red slave and blue master) with a gap of 1mm similar as shown below

 

image.png.ddf97cf22c6ca863b80560ba56223393.png

 

image.png.02e4e2b49271575bc394087e9aedd2eb.png

 

This is the setting for which my model converged and analysis was successful. 

 

But upon closer observation, I see that the gap between the contacts is not being closed but stresses are transferred.

 

After understanding a bit about 'CLEARANCE' ,

 

1) I gave clearance value more than the gap b/w the contact surfaces and the contact is not being established.
 
2) I kept the clearance field at DEFAULT and still no contact is being established.
 
ONLY when i give Clearance = 0.0 there is stresses transferred tough there is gap b/w the contact surfaces. Could you explain why this is and if the result obtained with CLEARENCE=0.0 correct?
 
Thanks in advance

 

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited July 2018

    Hi,

    I don't think to give a clearance value more than gap is a good idea.

     

    Please provide a clearance value of say 0.7 and check if that helps. 

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