Uncertainty assessment of fatigue damage of welded ship structural joints

摘要: Abstract The work presented here studies the effect of various factors related to fatigue damage assessment ship hull structures. Fatigue life is predicted by S–N approach based on long-term stress ranges, calculated using spectral approach. importance and interaction between factors, including main characteristics, operational profile a mission or loading condition, wave climatic data represented use different scatter diagrams, spectra, heading distributions, are analyzed. random origin mean effect, imperfection, weld shape improvement, hot-spot calculation resulting notch concentration factor but welded structural component have been taken into account.