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가속 수명 시험을 이용한 자동차용 배기 벨로우즈의 수명 해석
김형민(Hyungmin Kim),위신환(Shinhwan Wee),김태수(Taesoo Kim),김성현(Sunghyun Kim) 대한기계학회 2007 대한기계학회 춘추학술대회 Vol.2007 No.5
In order to assess the reliability of the exhaust bellows for automobiles, accelerated life test model and procedure are developed. By using this method, failure mechanism and life distribution are analyzed. The main results are as follows; ⅰ) the main failure mechanism is crack or breakage of inner flexible tube by shaken displacement at shear direction. ⅱ) temperature is a second factor to affect a failure. ⅲ) the life distribution of exhaust bellows is fitted well to Weibull life distribution and the shape parameter is 13.3 on condition of shaken displacement and 600℃.