FEA of Wrench on a Nut or Bolt
FEA of Wrench on a Nut or Bolt
(OP)
Has anyone ever done a COSMOS FEA of a wrench (or socket) tightening a nut or bolt?
I have been trying for a while to accurately simulate the large deformations that I have seen in person when extreme force (>3000 ft-lbf) is applied to such things as open end wrenches and sockets.
What I really need help with is how to restrain a wrench so that it can still slide on the nut a little bit while allowing the jaws of the wrench to spread.
Any input would be appreciated.
-Thanks
I have been trying for a while to accurately simulate the large deformations that I have seen in person when extreme force (>3000 ft-lbf) is applied to such things as open end wrenches and sockets.
What I really need help with is how to restrain a wrench so that it can still slide on the nut a little bit while allowing the jaws of the wrench to spread.
Any input would be appreciated.
-Thanks






RE: FEA of Wrench on a Nut or Bolt
The reason implicit solvers are common place is they are considerably faster than explicit solvers, especially when the geometry is very large and complicated.
RE: FEA of Wrench on a Nut or Bolt
I have not tried anything that hard with Cosmos though. I typically use Abaqus for my difficult simulations.
I hope this helps.
Rob Stupplebeen
RE: FEA of Wrench on a Nut or Bolt
RE: FEA of Wrench on a Nut or Bolt
I would disregard the plasticity because it is generaly quite localized. You are obviously not placing either the wrench or the nut anywhere near total plastic failure.
TOP
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