DESCRIBING STRESS CONCENTRATION FACTORS OF AN INTERNALLY PRESSURIZED CYLINDER WITH AN IMBEDDED HOLE BY NEW FORMULATION

Abstract

The purpose of this paper is to investigate the stress concentration factor(SCF) for an internally pressurized cylinder with hole and based on detailed three-dimensional elastic FE analysis, a new comprehensive set of formulas for SCFs are proposed. These stress concentration factors are presented and discussed as a function of the ratio of cylinder diameter to the thickness of cylinder and hole diameter. The first ratio “D/100t” is equal to 1, 1.25, 1.5, 1.75, 2, 2.5, 2.75, 3, 3.25 and 3.5 and the second ratio “D/10d”, cylinder internal diameter to the hole diameter, varies from 0.6, 0.9, 1.2, 1.5, 1.8, 2, 2.3, 2.7,3.1 and 3.5. Results are also presented for SCF of longitudinal, circumferential and Von Mises stresses.