Comparative Analysis of Stressed State in Torispherical and Elliptical Heads of Pressure Vessels

Abstract

Analysis of stressed state of torispherical and elliptical heads of pressure vessels having branch pipe on the head made it possible to disclose patterns of meridional and circumferential stress distribution in the heads under internal pressure, determine the area of maximum stresses, and ascertain the influence of nondimensional geometric parameters of vessels with heads with a branch pipe on the maximum compressive membrane circumferential stresses. The investigations were performed using finite-element method in a mixed variational formulation and a specially developed SAIS computer program.