품질경영학회지 (Journal of Korean Society for Quality Management)

  • 제35권3호
  • /
  • Pages.107-117
  • /
  • 2007
  • /
  • 1229-1889(pISSN)
  • /
  • 2287-9005(eISSN)
한국품질경영학회 (Korean Society for Quality Management)
권호 표지

확률적 피로한도모형하에서 계단형 피로시험의 설계

Design of the Staircase Fatigue Tests for the Random Fatigue Limit Model

  • 서순근 (동아대학교 산업경영공학과) ;
  • 박정은 ((주)범한 판토스) ;
  • 조유희 (동아대학교 산업경영공학과) ;
  • 송서일 (동아대학교 산업경영공학과)
  • Seo, Sun-Keun (Dept. of Industrial & Management Systems Engineering, Dong-A University) ;
  • Park, Jung-Eun (Pantos Logistics Co., Ltd) ;
  • Cho, You-Hee (Dept. of Industrial & Management Systems Engineering, Dong-A University) ;
  • Song, Suh-Il (Dept. of Industrial & Management Systems Engineering, Dong-A University)
  • 발행 : 2007.09.30
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초록

The fatigue has been considered the most failure mode of metal, ceramic, and composite materials. In this paper, numerical experiments to asses the usefulness of two Dixon's methods(small and large samples) and 14 S-N methods on assumptions of lognormal fatigue limit distribution under RFL(Random Fatigue Limit) model are conducted for staircase(or up-and-down) test and compared by MSE(Mean Squared Error) and bias for estimates of mean log-fatigue limit. Also, guidelines for staircase test plans to choose initial stress level and step size are recommended from numerical experiments including sensitivity analyses. In addition, the parametric bootstrap method to construct a confidence interval for the mean of log-fatigue limit by the percentile method using a transition probability matrix of Markov chain is presented and illustrated with an example.

키워드

참고문헌

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