http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
장병욱(Byungwook Jang),강석철(Sukchul Kang),김경희(Kyungheui Kim),박정선(Jungsun Park) 대한기계학회 2009 대한기계학회 춘추학술대회 Vol.2009 No.5
The fatigue fracture which occurs under repeated loads is a major concern in mechanical component design. Recently, fatigue life evaluation is getting important to guarantee reliability and safety of a product. In the fatigue analysis and design, uncertainties are caused by the variances of geometry data and applied loads, and the scatter of material properties. It makes the deterministic methods less useful. In this reason, reliability analysis concept should be incorporated to ensure fatigue safety in more sophisticated way. In this paper, fatigue crack growth life of turbine wheel which exposed to severe environments subject to high temperature and centrifugal forces is evaluated by fracture mechanics. Also the reliability analysis is accessed by the fist order second moment method and Monte Carlo simulation.