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Construction of a Design Curve for Fatigue Model Using Bootstrap Method  

서순근 (동아대학교 공과대학 산업시스템공학과)
조유희 (동아대학교 공과대학 산업시스템공학과)
Publication Information
Journal of Korean Society for Quality Management / v.30, no.4, 2002 , pp. 106-119 More about this Journal
Abstract
The fatigue curve with estimated parameters represents the estimate of the median or mean life at a given applied stress But, in order to assist a designer in making decisions regarding the fatigue failure mode, it is common practice to construct a design curve on the lower or safe side of data. In this study, to overcome the limitations(i.e., no runout, equal variance, and quality of the approximation, etc) of Shen, Wirsching, and Cashman's method which suggested the approximate design curve for nonlinear models using tolerance interval constructed by Owen's method, an algorithm to find design curves under the fatigue model using a parametric bootstrap method, is proposed and illustrated with multiple fatigue data sets.
Keywords
Design Curve; Tolerance Interval; Bootstrap; S-N Curve;
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