Effect of Repeated Loads on the Low Temperature Fracture Behavior of Notched and Welded Plates

Munse, W.H.; Cannon, J.P.; Kiefner, J.F.

Permalink

https://hdl.handle.net/2142/14038 Copy

Description

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.

Issue Date

1967-11-01

Keyword(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.

Publisher

University of Illinois Engineering Experiment Station. College of Engineering. University of Illinois at Urbana-Champaign.

Type of Resource

text

Language

en

Permalink

http://hdl.handle.net/2142/14038

Sponsor(s)/Grant Number(s)

Bureau of Ships - Department of the Navy Contract NObs 88283 Proj ect SR-149 Ship Structure Committee

Owning Collections