CONE-CYLINDER INTERSECTION UNDER PRESSURE - AXISYMMETRICAL FAILURE

This paper presents a detailed finite-clement investigation into the a xisymmetric failure behavior and strength of intersections of the larg e end of a cone and a cylinder subject to uniform internal pressure. T he study considers shells of uniform thickness with cone-apex half ang les ranging from 10-degrees to 85-degrees and cylinder radius-to-thick ness ratios from 10 to 1,000. Plastic limit loads from a small-deflect ion elastic-plastic analysis are first presented. A rationally based s imple equation is then established, which approximates the finite-elem ent limit loads very closely and is suitable for future incorporation in pressure-vessel design codes. The effect of large deflections on th e load-deflection behavior is examined extensively for the covered geo metric parameters for three different yield stresses. An approximate e quation to assess the beneficial effect of large deflections on failur e strength is also developed.