디젤기관용 커넥팅로드 대단부의 피로강도에 관한 연구

A Study on the Fatigue Strength of Connecting Rods for Diesel Engines

The estimation of fatigue strength at the design stage is very important in order to arrive at feasible and cost effective solutions considering the total lifetime of the structure and machinery components. In this study the stress calculations and the fatigue tests of the connecting rods for diesel engines were conducted to determine the fatigue strength under stress ratio R=O. And the effect of stress ratio are discussed. The main result obtained in this study is that the fatigue strength of the connecting rod to which the built up welding process has been applied is equivalent to that of SF61 class forged steel or greater thereto.