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Fracture Resistance of Canadian Patrol Frigate Hull Steels

Jack Morrison

出版	National Defence, Research & Development Branch, 1997
URL	http://books.google.com.hk/books?id=r7dnjwEACAAJ&hl=&source=gbs_api

註釋

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 Canadian patrol frigate hull construction. The data are being generated in support of ship structural integrity assessments and the evaluation of repair procedures. Steel specifications, variations in material supplied for both construction and repair, and welding procedures used are reviewed. Results are included from two series of fracture test programs: a preliminary assessment of the steels, welds, and heat affected zones in terms of their mechanical properties; and supplementary experiments to quantify quasi-static 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.