In a finite large-deformation analysis, mesh distortion reduces simulation accuracy, causes convergence difficulties, and can eventually terminate an analysis. Rezoning offers the option to repair the distorted mesh and continue the simulation.

The manual rezoning capability of Mechanical APDL enables you to decide when to use rezoning, what region(s) to rezone, and what remeshing method to use on the selected region(s).

During the rezoning process, the program updates the database as necessary, generates contact elements if needed, transfers boundary conditions and loads from the original mesh, and maps all solved variables (node and element solutions) to the new mesh automatically. Afterward, with equilibrium achieved based on the mapped variables, you can continue solving using the new mesh.