FATIGUE CRACK MONITORING FROM INITIATION TO THROUGH CRACKING IN WELDED THICK STEEL SECTIONS

The nondestructive evaluation policy of the Fatigue Section of the Admiralty Research Establishment in Dunfermline, Scotland, is described with respect to the fatigue testing of internally stiffened welded steel structures. These structures, of thick- section, high-yield strength steels, are subjected to high external cyclic pressures in a water environment. The report covers the application of various nondestructive testing techniques (Visual, MPI, Eddy Current, ACPD, Ultrasonic ToFD and conventional Pulse-Echo Ultrasonics) in the areas of weld assessment, fatigue crack initiation detection, fatigue crack sizing and fatigue crack growth monitoring. Data is presented on the size of initiating cracks expected to be detected and on the accuracy of the sizing and monitoring techniques used.

  • Supplemental Notes:
    • Report
  • Corporate Authors:

    Admiralty Research Establishment

    Dunfermline, Scotland  United Kingdom 
  • Authors:
    • Livingstone, F
    • Kilpatrick, I M
  • Publication Date: 1990-3

Media Info

  • Features: References;
  • Pagination: 13 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00661656
  • Record Type: Publication
  • Source Agency: Maritime Technical Information Facility
  • Report/Paper Numbers: ARE-TM-UHS-90203, DRIC-BR-113366
  • Files: TRIS
  • Created Date: Jul 21 1994 12:00AM