Approche par contrôle optimal des structures élastoviscoplastiques sous chargement cyclique

Abstract

The optimal control theory is used to study the asymptotic behavior of elastoviscoplastic structures under cyclic loading. With this approach the asymptotic state is solution of a minimization problem. For practical applications an approximate problem is introduced consistently with a spatial discretization. In this framework, the only stationary points of the functional to minimize are the global minima.