국내 최대 기계 및 로봇 연구정보

기술보고서

기술보고서 게시판 내용
타이틀	Damage Tolerance and Reliability of Turbine Engine Components
저자	Christos C. Chamis
Keyword	Probabilistic algorithms; Progressive fracture; Component reliability; Fault-tree
URL	http://gltrs.grc.nasa.gov/reports/1999/TP-1999-209878.pdf
보고서번호	NASA TP-1999-209878
발행년도	1999
출처	NASA Glenn Research Center
ABSTRACT	This report describes a formal method to quantify structural damage tolerance and reliability in the presence of a multitude of uncertainties in turbine engine components. The method is based at the material behavior level where primitive variables with their respective scatter ranges are used to describe behavior. Computational simulation is then used to propagate the uncertainties to the structural scale where damage tolerance and reliability are usually specified. Several sample cases are described to illustrate the effectiveness, versatility, and maturity of the method. Typical results from this method demonstrate that it is mature and that it can be used to probabilistically evaluate turbine engine structural components. It may be inferred from the results that the method is suitable for probabilistically predicting the remaining life in aging or deteriorating structures, for making strategic projections and plans, and for achieving better, cheaper, faster products that give competitive advantages in world markets.