CORRELATION OF LABORATORY TESTS WITH FULL SCALE SHIP PLATE FRACTURE TESTS: ANALYSIS OF TRUE-STRESS TRUE-STRAIN DATA ON PROJECT STEELS

The results of a study of the flow and fracture strengths of the project steels are considered. It appears that the flow- and fracture- strength concept of failure proposed by Ludwik is not adequate to account for the results obtained. The flow properties of the steels were studied as a function of temperature and prestrain. The test results were found to be adequately described by the expression, sigma = sigma sub o delta to the n power, in which sigma and delta are respectively true stress and natural strain, while sigma sub o and n are constants. Sigma sub o has been found to vary regularly with temperature while n has been found to undergo a transition for most of the steels at sufficiently low temperatures. Both sigma sub o and n appear to have fundamental significance and should ultimately be correlated in some manner with the engineering properties of the steels. (Author)

  • Supplemental Notes:
    • See also AD-635 794.
  • Corporate Authors:

    Pennsylvania State University, University Park

    School of Mineral Industries, Experiment Station
    University Park, PA  United States  16802
  • Authors:
    • Klier, E P
    • Mack, J O
    • Wagner, F C
    • GENSAMER, M
  • Publication Date: 1950-6-21

Media Info

  • Pagination: 65 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00327700
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: SSC- 19 Prog Rpt.
  • Contract Numbers: NOBS-31217, NOBS-50148
  • Files: TRIS
  • Created Date: Feb 18 1981 12:00AM