rigid-plastic plate, curvilinear contour, internal curvilinear support, explosive loading, limit load, final deflection.

. The common decision is received for a task about limit behavior and a dynamic bending of an ideal rigid-plastic plate of any form, hinge-supported by the curvilinear smooth closed contour located inside the contour of the plate. The plate is affected by short-term dynamic loading of high intensity of explosive type and uniformly distributed over a surface of plate. It is shown that there are some mechanisms of limit and dynamic deformation of plates in dependence on forms of an external contour and a supported contour. The optimum arrangement of a support is defined at which the limit load of a plate has the minimum value. Numerical examples are given. 

1. Nemirovskiy, Yuriy Vladimirovich Dr. Sci. of Phys. & Math., Рrofessor, S. Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch, Russian Academy of Sciences, Novosibirsk

2. Romanova, Tatyana Pavlovna Cand. Sci. Phys.&Math., Senior Researcher, S. Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch, Russian Academy of Sciences, Novosibirsk