FEA torque simulation

[grunt5897]

I'm making a custom wrench for personal use. For fun, I'd like to run an FEA and see if the wrench will fail. Below is a similar wrench. 100ft-lbs are applied with a torque wrench to the square socket. Where do I fix and apply the load? Should it be a torque or a force? I'm doing the FEA in SolidWorks if anyone wants the file.

 

[FEAnalyst]

You can fix the part that holds the socket and apply force to the handle. Wrench is quite common case for FEA, check this article for example: https://feaforall.com/linear-static-fea-simulation-wrench-salome-meca-code-aster-video-tutorial/

Or this video:

 

[grunt5897]

You can fix the part that holds the socket and apply force to the handle. Wrench is quite common case for FEA, check this article for example: https://feaforall.com/linear-static-fea-simulation-wrench-salome-meca-code-aster-video-tutorial/

Or this video:

I need to torque the nut to 100ft-lbs. The torque wrench engages the square socket. Do I apply 100ft-lbs at the square socket? Does the torque wrench length factor in at all?