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Interpenetration of solid

fstopelli-2
14-Alexandrite

Interpenetration of solid

Hello!

I would like to prevent the interprenetation of solids, that are "linked" by fasteners...

You have any idea?

Thank you

Good Life

Federico

6 REPLIES 6
fstopelli-2
14-Alexandrite
(To:fstopelli-2)

So, I'm forced to make a non-linear analisys?

It is not possibile to avoid it?

The other option would be to use a bonded interface - that would prevent interpenetration, but would also prevent separation.

In some other analysis package there's a sort of 'tied' interface, which keeps parts in contant but allows them to slide, but I'm not aware of anything equivalent in Mechanica.

By definition, if you want surfaces to be able to separate but not penetrate, that's a non-linearity...

Hi,

example attached (assembly).

regards

paul

fstopelli-2
14-Alexandrite
(To:skunks)

Sorry, but I don't see it

settings for a bolt:

bolt.JPG

contact:

contact.JPG

regards

paul

PS:

PTC:"

The fix separation option for the fastener is preventing the parts from

   separating at locations where they should separate. Hence, the results

   for this analysis ... inaccurate. You should turn off the fix separation

   option for the fastener and ... introduce a contact interface

   between the parts that are connected by the fastener."

regards

paul

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