Reply To: how to set up to find the pretention force of the bolted joint

[Kaushal Vadnere]

 

Well, Force Reaction is force equivalent of displacement, i.e. how much force is required to obtained the defined displacement. This works on similar principal as spring force, F = K*x, where F is the force, K is stiffness and x is displacement. if you know stiffness K & displacement x, you can calculate force F.

Force Reaction does not support moment boundary condition. The moment itself means force applied at distance so, force reaction for moment does not make sense. 
Similar to Force Reaction object, you can also use moment reaction object to obtain moment for applied remote displacement.

Refer to this article in Ansys help for more details on force & moment reactions and which boundary conditions are supported: 19.5.19.3. Reactions: Forces and Moments (ansys.com).