An algorithm for improved convergence in forming analysis (Q1384329)

A new algorithm has been developed based on the mesh normal and using a consistent full set (N-CFS) of equations, including equilibrium and contact conditions in the nonlinear set. The ``N-CFS'' algorithm exhibits remarkable stability and strong convergence. We have not found a well-posed problem, i.e. one which is physically stable within the discrete numerical framework, which exhibits numerical instability. Several challenging example problems are solved, illustrating the robustness of the new method.