This document contains the results of experimental and analytical studies of fracture in the ductile-brittle transition zone for two ship steels, EH36 and HSLA 80. Tensile, Charpy and fracture toughness test results using different strain rates are presented. Fracture toughness was quantified by the J integral and the crack tip opening displacement (CTOD). Elastic-plastic finite element analysis was combined with a local failure criterion to derive size limits for J and CTOD testing in the transition regions. Relationships between J and CTOD were explored both experimentally and analytically. A theoretical Charpy-fracture toughness relationship was used to predict CTOD transition curves for the steels. Charpy and CTOD transition temperatures were compared for a number of steels.

  • Supplemental Notes:
    • Report; A Ship Structure Committee Report
  • Corporate Authors:

    Texas A&M University, College Station

    College Station, TX  United States  77840

    United States Coast Guard

    2100 Second Street, SW
    Washington, DC  United States  20593
  • Authors:
    • Anderson, T L
  • Publication Date: 1990

Media Info

  • Features: References;
  • Pagination: 90 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00661893
  • Record Type: Publication
  • Source Agency: Maritime Technical Information Facility
  • Report/Paper Numbers: SSC-345/PT.2
  • Contract Numbers: DTCG23-88-C-20037
  • Files: TRIS
  • Created Date: Jul 21 1994 12:00AM