The purpose of this research has been the investigation of some of the geometric factors which affect the performance of plates with reinforced openings, such as the shape of opening, the type and amount of reinforcement, and the width and thickness of the body plate. Some of the tests were repeated at low temperatures to bring in the factor of cleavage fracture. In the course of the project, a considerable amount of work was directed toward determining the nature of the plastic flow which precedes the initiation of fracture and the conditions which precipitate fracture. Specific recommendations based on the findings of the investigation have been made with respect to the design of openings and their reinforcement. Many of the results of the research are applicable to welded structures in general. The extensive test work required the use and development of somewhat new research methods and techniques. The applicability of Nadai's octahedral strain energy method, the plastic stress computation, and the resistance-wire grid system of measurements for plastic strain studies are mentioned as particularly useful.

  • Corporate Authors:

    University of Washington, Seattle

    Seattle, WA  United States  98195

    Ship Structure Committee

    National Academy of Science, 2101 Constitution Avenue, NW
    Washington, DC  United States  20418
  • Authors:
    • Vasarhelyi, D
    • Hechtman, R A
  • Publication Date: 1955-3-21

Media Info

  • Features: References;
  • Pagination: 66 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00331018
  • Record Type: Publication
  • Source Agency: Ship Structure Committee
  • Report/Paper Numbers: SSC- 75 Final Rpt.
  • Contract Numbers: NObs-50238
  • Files: TRIS
  • Created Date: May 21 1981 12:00AM