AN OVERVIEW OF FATIGUE ASSESSMENT AND CONTROL IN NAVAL WELDED DETAILS

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Authors
  1. Abdel-latif, A.M.
Corporate Authors
Quality Engineering Test Establishment, Ottawa ONT (CAN);Defence Research Establishment Atlantic, Dartmouth NS (CAN)
Abstract
QETE surveyed the current literature on fatigue design procedures, analytical methos and fatigue control in welded structural details in surface ships. The survey adressed the issues of material selection, geometry of fabricated detail, post fabrication processes and availability of fatigue design data for specific steels on the CPF. Most of the reported Canadian tests had been conducted on thick steel plates for offshore structural platforms to improve weld profiles and corrosion protection. QETE found that the US Coast Guard had published an extensive materials data Handbook which contained data from thousands of tests on eleven structural steels commonly applied in surface ship construction. The databases include tensile strength and Charpy impact values, DT energies, NDTT and JIC values for a limited number of critical design details. The US Handbook contains fatigue design data for two steels whic match the composition and constituents of two Canadian steels. It was concluded that there is a need to generate fatigue design and durability data for susceptible structural details manufactured from ASTM A715, ASTM A570 and CSA CAN3-350WT steels.
Report Number
DREA-NAMT-95-5-PAP-4 — CONTAINED IN 99-00779
Date of publication
30 May 1995
Number of Pages
24
DSTKIM No
99-00804
CANDIS No
510368
Format(s):
Hardcopy;Document Image stored on Optical Disk

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