Experimental and computational method of studying large elastoplastic deformations of cylindrical shells in tension to rupture and constructing strain diagrams for an inhomogeneous stress–strain state

An experimental and computational method of constructing true strain diagrams of steel tubular specimens under tension to rupture at large deformations is developed. Experimental and theoretical studies were performed to investigate the effect of the geometric parameters of cylindrical shells, initial imperfections of the geometry, and edge effects on strain localization, the point of necking, and the critical loads.