Open AccessTest of 6-inch-thick pressure vessels. Series 2. Intermediate test vessels V-3, V-4, and V-6
Author(s) -
R.H. Bryan,
J.G. Merkle,
Martin N. Raftenberg,
G.C. Robinson,
J. E. Smith
Publication year - 1975
Language(s) - English
Resource type - Reports
DOI - 10.2172/4120906
Subject(s) - pressure vessel , series (stratigraphy) , test (biology) , hydrostatic test , materials science , mathematics , geology , composite material , paleontology
The second series of intermediate vessel tests were crack initiation fracture tests of 6-in.-thick 39-in.-OD steel vessels with sharp surface flaws approximately 2$sup 1$/$sub 2$ in. deep by 8 in. long in the longitudinal weld seams of the test cylinders. Fracture was initiated by means of hydraulic pressurization. One vessel was tested at each of three temperatures: 75, 130, and 190$sup 0$F. Pretest analyses were made to predict the failure pressures and strains. Fracture toughness data obtained by equivalent-energy analysis of precracked Charpy-V tests and compact-tension specimen tests were used in the fracture analyses. The vessels behaved generally as had been expected. Posttest fracture analyses were also performed for each vessel. Detailed discussions of the fracture analysis methods developed in support of the vessel tests described are included. 34 references. (auth