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박경동(K. D. Park),진영범(Y. B. Jin),류형주(H. J. Ryu),유만희(M. H. Ryu) 한국동력기계공학회 2004 한국동력기계공학회 학술대회 논문집 Vol.- No.-
The lightness of components required on marine and shipbuilding industry is requiring high strength of components. In particular, fatigue failure phenomena, which happen in metal, bring on danger in human life and property. Therefore, antifatigue failure technology takes an important part of current industries. In this study, it was investigated about endurance and fatigue crack propagation rate of according to welding methods of SMAW and FCAW commonly using for welding structures in present. Endurance limit carried out highly in the order of SMAW, FCAW and fatigue crack propagation rate carried out lowly in the order of SMAW, FCAW. By these results, it is needed to used SMAW welding methods for welding structures with small welding capacity and FCAW methods for large welding structures after due consideration about economic gains and operation efficiency of welding. Fatigue crack propagation rate is more effected by strength of welding materials than endurance limit of welding materials according to welding methods.