Parametric Study of Nozzle Connections in Ellipsoidal Head Pressure Vessel

Abstract

This paper presents 3-D solid structural modeling and stress analysis of radial nozzle connections in ellipsoidal heads vessel subjected to internal pressure and various external loadings. Finite Element Analysis (FEA) method was utilized to determine the stress distribution at the intersection of a radial nozzle attached to the ellipsoidal head. In order to get better understanding of the structure behavior, a parametric study was carried out to determine influences of the geometrical parameters. All the results analysis was presented as graphs of non-dimensional parameters against stress concentration factor (SCF) for each load case applied.