How to apply weak springs in bolted composite single lap joint
How to apply weak springs in bolted composite single lap joint
(OP)
Hi,
Currently i faced convergence problems in my FE Model. Both plates are made of CFRP and bolt from Titanium. The analysis using 3D solid element. I have read several publication mentioned that weak springs can be used to bolt and plates in order to eliminate rigid body motion and convergence problem. Where to apply it?..the whole surface of bolt and nut?or only at one node both at bolt and nut surface?
Any opinions are appreciated.
Currently i faced convergence problems in my FE Model. Both plates are made of CFRP and bolt from Titanium. The analysis using 3D solid element. I have read several publication mentioned that weak springs can be used to bolt and plates in order to eliminate rigid body motion and convergence problem. Where to apply it?..the whole surface of bolt and nut?or only at one node both at bolt and nut surface?
Any opinions are appreciated.





RE: How to apply weak springs in bolted composite single lap joint
If multiple parts can move, then the stabilization option in the step menu might be a better approach.
RE: How to apply weak springs in bolted composite single lap joint
What are rigid body nodes?degree of freedom? I have no idea
RE: How to apply weak springs in bolted composite single lap joint