3 Replies Latest reply on Feb 24, 2015 12:49 AM by Jared Conway

shell to shell bonded with gap

Mike Vakil Feb 19, 2015 12:25 PM

Hi,

I create a shell to shell bonded contact where there is a gap between the edge of one shell and face of the other shell (since the mid-surface is selected to be at the 50% of the thickness).

Solidwork gives a warning that the results might not be accurate; why?

If the bonded contact create the contraints the nodal displacements must be the same, why the results should not be accurate?

thanks

Re: shell to shell bonded with gap

Jared Conway Feb 19, 2015 5:13 PM (in response to Mike Vakil)

because there is a rigid beam between the faces instead of the nodes being tied directly together
i believe there is an article about this in the help and also the solidworks kb
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- Re: shell to shell bonded with gap
  
  Mike Vakil Feb 23, 2015 10:53 PM (in response to Jared Conway)
  
  Thanks Jared,
  
  But there is a difference between merging the nodes and putting a rigid beam to force the displacemet being the same. The former does not affect the overal stiffness matrix but the latter will. Is there a way to change the stiffness of the connecting beams ?
  
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  - Re: shell to shell bonded with gap
    
    Jared Conway Feb 24, 2015 12:49 AM (in response to Mike Vakil)
    
    other than not using them, no
    
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