Abstract: Bolted flanged joint assemblies may begin to leak some time following a successful hydrostatic test. One of the reasons is that the gasket experiences a drop in its initial compressive stress ...

Abstract: The finite element method has been used to investigate the stress field in threaded end closures of thick-walled high pressure vessels. A set of elastic analyses of vessels with 5, 8, 11, ...

Abstract: The finite element method is used to derive a general stress intensity factor expression for straight-fronted and circumferential surface cracks subjected to an arbitrary stress field. The ...

Abstract: Due to the high stress concentration at the root of the first active thread in threaded end closures of high pressure vessels, yielding may occur in this region during the application of the ...

Abstract: The tube-to-tubesheet joint analysis can be greatly simplified by considering a single tube surrounded by an annular sleeve representing the tubesheet. One of the problems is how to choose the ...

Abstract: The knowledge of residual stresses introduced in the tubes of heat exchangers during their expansion in the tubesheet holes is important because of their effect on the structural integrity of ...

Abstract: The loss of tightness of bolted flanged joints is primarily due to the relaxation of the joint; in particular, the clamping load is affected by the amount of relaxation that a gasket exhibits ...