Elastic-Plastic Deformation of Circular Cylindrical Shells Under Hydrostatic Pressure

In this paper the axi-symmerical deformation of hydrostatically loaded elastic-plastic cylindrical shells and posibility of axisymmetrical collapsing from these elastic-plastic deformed conditions are studied. From calculating about the some numerical examples, relations of pressure and deflection are obtained, and it is shown that there exist two modes of collapse corresponding, respectively, to short shell with hearvy frames and long shell with weerk frames.