This report describes the laboratory work undertaken 1) to investigate the feasibility of developing a welded crack arrestor and 2) to observe the behavior of various crack arresting devices. The study was accomplished by propagating a brittle crack, initiated by driving a wedge into a notch at the edge of the specimen, into 2-ft and 6-ft wide steel plates containing either (a) welded inserts of T-1 steel (b) riveted doubler plates or (c) welded inserts of ABS Class C normalized steel, which were located at various distances from the edge of the plate. Most of the tests were conducted at nominal stresses between 20 and 30 ksi and at temperatures between -25 and 40 F. Some of the specimens were instrumented with strain gages to provide information on crack speed and strain pattern.

  • Corporate Authors:

    University of Illinois, Urbana-Champaign

    Urbana, IL  United States  61801

    Ship Structure Committee

    National Academy of Science, 2101 Constitution Avenue, NW
    Washington, DC  United States  20418
  • Authors:
    • Mosborg, R J
  • Publication Date: 1960-8-31

Media Info

  • Features: References;
  • Pagination: 114 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00331910
  • Record Type: Publication
  • Source Agency: Ship Structure Committee
  • Report/Paper Numbers: SSC-122 Final Rpt.
  • Contract Numbers: NObs-65789
  • Files: TRIS
  • Created Date: May 21 1981 12:00AM