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Structural Research Series 255PDF


Title:Brittle Fracture Studies
Alternative Title:A. Fracture Propagation in Wide Steel Plates Containing Residual Stress;
B. Fracture Propagation in Centrally Notched and Welded Steel Plates
Author(s):Videon, F.F.; Barton, F.W.; Hall, W.J.
Subject(s):brittle fracture propagation
Residual stress
Plates, Iron and steel.
Abstract:This investigation was undertaken to study the propagation of brittle fractures in wide steel plates containing a residual strain field. The purpose of this technical progress report is to present the detailed test data along with pertinent discussion. In Part A are presented the results of eight tests of six-foot wide prestressed steel plates in which the residual stress field was produced by welding tapered slots cut in the edges of the specimens 0 In Part B are presented the test data from nineteen tests of two-foot wide centrally notched plates, a majority of which had a longitudinal butt weld. Measurements of surface strains, crack speed, and specimen temperature were made during the fabrication and testing of selected specimens. The effects of residual and applied stress fields on fracture~ speed, strain field during propagation, and fracture texture are discussed herein. Also, a number of observations regarding the effects of residual stress, thermal strain cycling and notch geometry on fracture initiation parameters are presented.
Issue Date:1962-08
Publisher:University of Illinois Engineering Experiment Station. College of Engineering. University of Illinois at Urbana-Champaign.
Series/Report:Civil Engineering Studies SRS-255
Genre:Technical Report
Sponsor:Ship Structure Committee. Bureau of Ships, U.S. Navy. Project SR-155
Bureau of Ships, U.S. Navy. Contract NObs 65790, Index No. S-R 0090301 Task 1991
Date Available in IDEALS:2009-10-16
Identifier in Online Catalog:2532196

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