PROPOSED REINFORCEMENT DESIGN PROCEDURE FOR RADIAL NOZZLES IN SPHERICAL SHELLS WITH INTERNAL PRESSURE (PHASE REPORT NO. 1); PROPOSED REINFORCEMENT DESIGN PROCEDURE FOR RADIAL NOZZLES IN CYLINDRICAL SH (To Purchase Call 1-800-854-7179 USA/Canada or 303-397
"This report covers one phase of the overall problem of reinforced openings in pressure vessels; specifically@ the development of a design procedure for radial nozzles in spherical shells loaded with internal pressure. The design procedure is intended to define acceptable reinforcing details for radial nozzles in spherical vessels@ hemispherical heads@ torispherical heads provided the opening is in the spherical section sufficiently away from the toridal section@ and ellipsoidal heads in the central section. Reinforcing@ if any is required@ is assumed to be continuous with the shells@ as contrasted to ""welded-on"" pads. Since limit analysis is used to establish the design procedure@ an implied assumption is that the material of the shells and the weld metal is ductile@ e.g.@ is capable of withstanding several percent of local strain in a complex stress field at all temperatures at which the vessel may be loaded."