Learning Forum

[Y EH]

Hello everyone,

I'm trying to simulate the strength of a plastic stop of a fixed part when a force is applied to pull an upper part (maintained in position by the stop). See setup image below.

What contacts should I put to be able to apply a force on the upper part?

Thank you

[Ankush Choudhary]

Hi,

It seems you have a snap fit problem; you can try either using frictional or frictionless contact.

[Y EH]

Hello,

Thank you for the answer.

I have added a frictional contact between the two parts that are meant to be touching (see below) but both parts still won't separate from one another.

The parts continue to stick to one another here:

[Ankush Choudhary]

Hello,

It seems your Snapfit retention angle is 90 degrees, which means the snapfit becomes permanent and won't come out.

[Y EH]

Yes because the goal is to measure the strength of the latch and rentention part. But both parts won't separate.

[peteroznewman]

Was this geometry imported into SpaceClaim where the Share button was used?  That can cause the mesher to connect the parts so that they won't separate.

Were any Bonded Contacts automatically created when the geometry was brought into Mechanical? That can cause the parts to not separate. Check what is in the Connections folder and delete any automatically created contacts.