With a remeshing rule you can specify:
The region where you want the mesh refined.
The solution quality criteria (for example error indicators in the Mises stress) that mesh refinement is based on.
The analysis step or steps that refinement is based on.
Minimum and maximum element size constraints.
A sizing algorithm and parameters appropriate to your simulation.
For more information, see Advanced meshing techniques; and Creating, editing, and manipulating adaptivity processes.