RECOMMENDED FRACTURE TOUGHNESS FOR SHIP HULL STEEL AND WELD

Currently used toughness criteria for ship hull steel and weld were empirically derived in the 1950s. This paper suggests more quantitative guidelines based on dynamic fracture mechanics testing. A minimum toughness of 125 MPa m1/2 at a temperature of 0oC and a loading rate of 104 M Pa m1/2/s is proposed. With some loss of precision this can be translated to a Charpy requirement of FATT below 0oC. Grade A plate often fails to meet this toughness level and is consequently considered by the authors to be unsuitable for use in ships' hulls.

  • Supplemental Notes:
    • Marine Structures, v 8 n 4, 1995, p 345 [13 p, 14 ref, 10 fig]
  • Authors:
    • Sumpter, J D
    • Caudrey, A J
  • Publication Date: 1995

Language

  • English

Subject/Index Terms

Filing Info

  • Accession Number: 00711005
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Aug 14 1995 12:00AM