Convergence of Displacement Results - Is there a criteria for acceptable convergence?

Dear all,

Going through different posts and forums on SolidWorks Simulation I gather a 10% difference in max VonMises stress between two consecutive iterations is considered by some to indicate convergence.

I wondered if similar criteria exists for displacement results and what approach in manual mesh refinement one needs to use ie. half the max element size with consecutive iterations or decrease it by 20%?

I hope all the experienced members of the community can point me in the right direction.

Regards

DSA

SolidworksSimulation