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Structural Research Series SRS-329PDF


Title:Effect of Repeated Loads on the Low Temperature Fracture Behavior of Notched and Welded Plates
Author(s):Munse, W.H.; Cannon, J.P.; Kiefner, J.F.
Subject(s):Steel, Structural --Brittleness
Steel --Fatigue
Residual stresses
Notch effect
Plates, Iron and steel --Welding
Abstract:The influence of repeated loadings on the susceptibility of weldments to fracture in a brittle manner is studied for an ABS-Class C steel. The test members have consisted primarily of 12, 24 and 36 in. wide notched-and- welded specimens that, at low temperatures, have been known to provide low-stress brittle fractures. The repeated loads or loading history are found to affect the fracture behavior of the weldments. In all but one instance the fracture stresses obtained for the notched-and welded wide plates were greater than the stresses to which the members had been subjected during the repeated loadings. Furthermore, the repeated loadings appeared to eliminate the two-stage fractures observed in some of the tests of as-welded specimens. This latter condition is in general desirable, but only if the fracture stress is raised to a high-stress level.
Issue Date:1967-11-01
Publisher:University of Illinois Engineering Experiment Station. College of Engineering. University of Illinois at Urbana-Champaign.
Genre:Technical Report
Sponsor:Bureau of Ships - Department of the Navy Contract NObs 88283 Proj ect SR-149 Ship Structure Committee
Date Available in IDEALS:2009-10-20
Identifier in Online Catalog:666501

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