There is a clear need for the development of alternate repair methods which preclude having to drydock a ship. An area of ship repair which has the potential to accomplish this objective involves the use of underwater wet welding. Fatigue performance was evaluated by testing underwater wet butt welds fabricated in 3/8-inch ASTM A 36 steel, using E7014 Type electrodes. The underwater wet welds were fabricated in fresh water at a depth of 30 feet, using a wet welding procedure qualified to the standards of ANSI/AWS D3.6-89, for Type B welds. Fatigue testing was performed on transverse weld specimens, with and without backing bars, subjected to cyclic axial tensile loading.
Underwater Repair Procedures for Ship Hulls (Fatigue and Ductility of Underwater Wet Welds)
1993
88 pages
Report
No indication
English
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