Six case histories of pressure vessel failures

An Overview of Buckling and Imperfection of Cone-Cylinder Transition under Various Loading Condition

“…The shells failure pattern can be associated with its thickness, where: (i) thicker shell might result to axisymmetric or asymmetric buckling pattern (Ifayefunmi, 2015a;Ifayefunmi and Błachut, 2013), although (ii) thin shell buckles in the form of chessboard pattern (Kobayashi and Mihara, 2010;Krasovsky and Kostyrko, 2007). , Hayes (1996 comprehensively reviewed the cases of six pressure vessels failures. From his review, the root causes of the pressure vessels failure can be attributed to (i) sudden collapse of the pressure vessel due to shock loading, and (ii) the influence of residual stresses in the pressure vessel resulting from insufficient heat treatment process during stress relieving of the vessels.…”

International harmonization of training and qualification in the manufacturing industry

“…In addition, it is well known that if welding is not carried out properly, catastrophic failure of constructions can occur that create serious damage to people and also represent significant economic losses, as emphasized by Quintino (2009), Hayes (1996) and Hartbower (1992), among others. Such problems can be overcome by empowering technical staff with competences and skills and improving the management of people and organizational structures through the better utilization of human resources.…”

Common root causes of recent failures of flanges in pressure vessels subjected to dynamic loads

“…Present rules in fabrication codes are aimed to reduce their probability. Yet, it has been found that several leaks and ruptures have occurred in pressures vessels in the gas and petrochemical industries [3]. The derived costs of some of these failures have been large, for what it is interesting to determine the influence of constructive and operation aspects, and possible mitigation alternatives.…”