ssc-367 - Ship Structure Committee

Member Agencies:
United States Coast Guard
Naval Sea Systems Command
Maritime Administration
American Bureau of Sh@ping
Military Sealifi Command
Transpmt Canada
Ship
Structure
Committee
An Interagency AdvisoryCommittee
May 17, 1993
Address Correspondence to:
Executive Director
Ship Structure Committee
U.S. Coast Guard (G-Ml/R)
2100 Second Street, S.W.
Washington, D.C. 20593-0001
PH: (202) 267-0003
FAX: (202) 267-4677
SSC-367
SR-1324
FATIGUE TECHNOLOGY ASSESSMENT AND STRATEGIES FOR FATIGUE
AVOIDANCE IN MARINE STRUCTURES
.—..
This report synthesizes the state-of–the-art in fatigue
technology as it relates to the marine field. Over the years
more sophisticated methods have been developed to anticipate the
life cycle loads on structures and more accurately predict the
failure modes. As new design methods have been developed and
more intricate and less robust structures have been built it has
become more critical than ever that the design tools used be the
most effective for the task. This report categorizes fatigue
failure parameters, identifies strengths and weaknesses of the
available design methods, and recommends fatigue avoidance
strategies based upon variables that contribute to the
uncertainties of fatigue life.
This set of Appendices includes more in-depth presentations of
the methods used in modeling the loads from wind and waves,
linear system response to random excitation, stress concentration
factors, vortex shedding and fatigue damage calculation.
G.P.Y&n
..
A. E. HENN
Rear Admiral, U.S. coast Guard
Chairman, Ship Structure Committee
.-.