1. Introduction
The design method is based on an analysis of the longitudinal stresses exerted within the cylindrical shell by the overall bending of the vessel, considered as a beam on two single supports, the shear stresses generated by the transmission of the loads on the supports, and the circumferential stresses within the cylindrical shell, the head shear and additional tensile stress in the head, and the possible stiffening rings of this shell, by this transmission of the loads on the supports. The stress calculation method is based on the linear elastic mechanics and covers modes of failure by excessive deformation and elastic instability.This method of calculation can only be used to design pressure vessel supported by two saddles symmetrically placed.
- The stresses that can be evaluated are:
- Maximum longitudinal stress
- Tangential shear stress
- Circumferential stress at the horn of the saddle
- Additional stress in the head used as a stiffener
- Pressure Vessel Design Manual – Dennis Moss, Michael Basic
- Mechanical Design of Heat Exchangers and Pressure Vessel Components – Krishna P. Singh, Alan I. Soler
- Pressure Vessel Handbook – Eugene Megyesy