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A Study on the Reliability Evaluation of Shot Peened Aluminium Alloy Using Accelerated Life Test

가속수명시험을 이용한 쇼트피닝가공 알루미늄 합금의 신뢰성 평가에 관한 연구

  • 남지헌 (서울산업대학교 산업대학원) ;
  • 강민우 (일본 큐슈대학교 대학원 기계공학과) ;
  • 정성균 (서울산업대학교 기계공학과)
  • Published : 2006.12.01

Abstract

In this paper, the concept of accelerated life test, which is a popular research field nowadays, is applied to the shot peened material. To predict the efficient and exact room temperature fatigue characteristics from the high temperature fatigue data, the adequate accelerated model is investigated. Ono type rotary bending fatigue tester and high temperature chamber were used for the experiment. Room temperature fatigue lives were predicted by applying accelerated models and doing reliability evaluation. Room temperature fatigue tests were accomplished to check the effectiveness of predicted data and the adequate accelerated life test models were presented by considering errors. Experimental result using Arrhenius model, fatigue limit obtain almost 5.45% of error, inverse power law has about 1.36% of error, so we found that inverse power law is applied well to temperature-life relative of shot peened material.

Keywords

Accelerated Life Test(ALT);Shot Peening;Reliability Evaluation;Fatigue Characteristics

References

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