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김영표(Young-Pyo Kim),김철만(Cheol-Man Kim),김우식(Woo-Sik Kim),고영태(Young-Tai Kho),신광선(Kwang-Seon Shin) 대한기계학회 2002 대한기계학회 춘추학술대회 Vol.2002 No.5
Pipeline service failures have occurred because of pressure-cycle-induced fatigue crack growth of defects. Research has been conducted to predict the fatigue life of surface crack on the natural gas pipeline subjected to cyclic internal pressure. Information regarding cyclic pressure variations, amplitude and frequency, for a gas pipeline was surveyed The fatigue crack propagation behavior of weld metal and base metal of API 5L X65 pipeline was evaluated The full scale fatigue test was conducted to compare experimental value with predicted fatigue life.