AnsweredAssumed Answered

rules of creating bonded contact set of beam and solid

Question asked by Ben D. on Feb 22, 2015
Latest reply on Jun 16, 2015 by Ben D.

Hello,

 

I am about to create a contact set for a beam and four brackets:

 

1.jpg

 

If I create four different contact sets for each bracket, having selected the horizontal beam as a source, and all the touching surfaces of the bracket as a target, then the simulation works fine. These are the faces for selection of a bracket:

2.jpg

 

 

However, technically I can select the horizontal beam as a source, and ALL the appropriate faces of all four brackets as a target. This would make a selection a little faster. But in this case, I get the simulation results, that two bracket fly away (the displacement is shown to be 3*10^30 mm), meaning the software does not see this contact. If I run the simulation twice, I usually get different brackets flying away, but the other two brackets shows correct results.

 

Is there a rule, that in the case like this, the target faces should belong to one body? I didn't find this requirement anywhere, and I think it should not be. Does anybody else have this issue? I tried it on sw2015 sp1.1 and just installed sp2.0, but it is the same.

 

Thank you for your ideas

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