Dynamic plastic damage of simply and doubly connected elliptic plates

This paper studies the dynamic behavior of simply and doubly connected elliptic ideal rigid-plastic plates with simply supported or clamped contours under short-time intensive dynamic loads. It is shown that there are several mechanisms of dynamic deformation of plates. For each mechanism, equations of the dynamic behavior are obtained. Operating conditions of these mechanisms are analyzed. Analytical expressions for the ultimate, “high” and “superhigh” loads and the maximum final deflection are obtained. Numerical examples are given.