The effect of chamfer and size on the stress distributions in a thick-walled cylinder with a cross bore under internal pressure

Abstract

The hoop stress and stress concentration factor distributions in a closed ended thick-walled cylinder with a chamfered cross bore under intemt,al pressure were inaestigated. The finite element method of stress analysis wts used for this study. The effect of changing chamfer angle, for a fired chamfer size, on the hoop stress and stress concentration factor distributions wt,s inaestigated. The effect of changing the chamfer length, fo, a fired chamfer angle, on the hoop stress distributions and stress concentration foctors was also inuestigated. The optimum chamfer angle and chamfer length fo, any cylinder configuration was established. The study reuealed that adding chamfers to cross bores causes a, redistribution and reduction of the stresses attained in intemrally pressurized thick-walled cylinders. For o, thick cylinder of a giuen thickness ratio and cross bore diameter, it was obseraed that the stresses were a minimum at a specifi,c chamfer angle and size.