INTERPRETIVE REPORT ON OBLIQUE NOZZLE CONNECTIONS IN PRESSURE VESSEL HEADS AND SHELLS UNDER INTERNAL PRESSURE LOADING; ELASTIC STRESSES NEAR A SKEWED HOLE IN A FLAT PLATE AND APPLICATIONS TO OBLIQUE N (To Purchase Call 1-800-854-7179 USA/Canada or 303-397
"One of the problems which has concerned and intrigued pressure vessel designers for a good many years has been the proper design of nonradial@ or oblique holes and nozzle connections. One of the earlier and more successful investigators of this problem was Blair@' who in the late 1930's and early 1940's developed and proved his ""tri-form"" reinforcements for lateral and wye connections in penstocks. However@ generally speaking@ this form of reinforcement is not suitable for use in most conventional pressure vessels@ particularly in applications where thermal stresses are a problem. Within the past few years@ a number of papers have been issued providing data on various aspects of this problem@ but generally speaking these investigations were of somewhat limited scope and seemingly did not deal adequately with the ""fundamentals of the problem."" Nevertheless@ certain of these data fill significant gaps in the PVRC program data. Therefore@ in the report which follows@ use is made of all data available to us-both published and unpublished-which would appear to contribute significantly to an overall understanding of the problem."