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Optimal design of accelerated life tests with two stresses

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  • Jung‐Won Park
  • Bong‐Jin Yum

Abstract

Most of the previous works on designing accelerated life test plans were concerned with the case where a single stress is employed for acceleration. In this article we develop optimal accelerated life test plans when two stresses are involved with possible interaction between them. The lifetimes of test items are assumed to follow an exponential distribution, the mean of which depends on the stresses according to the generalized Eyring law. A factorial arrangement of test points is considered for an efficient utilization of equipment, and the low level of each stress and the proportion of test items allocated to each test point are determined such that the asymptotic variance of the maximum‐likelihood estimator of the mean lifetime at the use condition or of an acceleration factor is minimized. Patterns of optimal plans are identified and their efficiencies are compared with the corresponding single‐stress accelerated life test plans. © 1996 John Wiley & Sons, Inc.

Suggested Citation

  • Jung‐Won Park & Bong‐Jin Yum, 1996. "Optimal design of accelerated life tests with two stresses," Naval Research Logistics (NRL), John Wiley & Sons, vol. 43(6), pages 863-884, September.
    • Handle: RePEc:wly:navres:v:43:y:1996:i:6:p:863-884
    DOI: 10.1002/(SICI)1520-6750(199609)43:63.0.CO;2-2
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    References listed on IDEAS

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    1. Bong‐Jin Yum & Seung‐Cheol Choi, 1989. "Optimal design of accelerated life tests under periodic inspection," Naval Research Logistics (NRL), John Wiley & Sons, vol. 36(6), pages 779-795, December.
    2. Sun‐Keun Seo & Bong‐Jin Yum, 1991. "Accelerated life test plans under intermittent inspection and type‐I censoring: The case of weibull failure distribution," Naval Research Logistics (NRL), John Wiley & Sons, vol. 38(1), pages 1-22, February.
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    Cited by:

    1. Elsayed, E.A. & Zhang, Hao, 2007. "Design of PH-based accelerated life testing plans under multiple-stress-type," Reliability Engineering and System Safety, Elsevier, vol. 92(3), pages 286-292.
    2. Yada Zhu & Elsayed A. Elsayed, 2013. "Design of accelerated life testing plans under multiple stresses," Naval Research Logistics (NRL), John Wiley & Sons, vol. 60(6), pages 468-478, September.

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