FRACTURE RESISTANCE OF CANADIAN PATROL FRIGATE HULL STEELS

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Authors
  1. Morrison, J.
  2. Garneau, S.
Corporate Authors
Defence Research Establishment Atlantic, Dartmouth NS (CAN)
Abstract
This presentation provides an overview of results to date and work in progress on the determination of the fracture resistance of steels and welds used in CPF hull construction. This data is being generated in support of ship structural integrity assessments and the evaluation of repair procedures. An overview is provided of the steel specifications, the variations in material supplied for both construction and repair, and of the welding procedures used. The results from two series of fracture test programs are included: (a) A preliminary assessment of the steels, welds and heat affected zones in terms of their mechanical properties; and (b) Supplementary experiments to quantify quasi-state and dynamic toughness over the temperature range of interest. Related programs on crack arrest toughness, ongoing work on the fracture resistance of mismatched welds, and future trends in steel selection are also discussed.
Report Number
DREA-SR-97-002-PAP-24 — CONTAINED IN 98-00986
Date of publication
01 Oct 1997
Number of Pages
43
DSTKIM No
98-01010
CANDIS No
507227
Format(s):
Hardcopy;Document Image stored on Optical Disk

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