A MIXED FORMULATION FOR A BENDING DOMINATED KOITER SHELL WITH OBSTACLE
Hanen Ferchichi · Journal of Computer Science and Applied Mathematics · 2021
In this paper, we present a mixed formulation for a bending dominated Koiter shell with obstacle in order to avoid numerical locking or the deterioration of the convergence when the small parameter the thickness goes to zero. This formulation is a combination between the free locking mixed formulation presented in [1,10] and the Koiter’s model with obstacle for flexural shell proposed in [6].