Evaluate Torque applied on a disc

Hello,

I'm a new user of Comsol. I am trying to do a simple test of applying a torque to a disc and then simply evaluating it.
I believe I have managed to apply a torque correctly to my disc, but I don't know how to evalute/verify its value in the result section of my simulation.
Can somebody tell me how to do this?

I'll really appriciate your help!

James