Optimal simple step-stress plan for Khamis-Higgins model

Abdulla A. Alhadeed; Shie Shien Yang

doi:10.1109/TR.2002.1011527

Optimal simple step-stress plan for Khamis-Higgins model

Abdulla A. Alhadeed
, Shie Shien Yang

Research output: Contribution to journal › Article › peer-review

39 Citations (Scopus)

Abstract

Optimal times of changing stress-level for the simple step-stress plans under the Khamis-Higgins model (an alternative to the Weibull step-stress model) are determined for a wide range of values of the model parameters. The applicability of the "optimal time of changing stress" formula obtained by Khamis-Higgins for a known shape parameter to the case of unknown shape parameter is examined. Their formula provides a reasonable approximation to the actual optimal times of changing stress levels within a certain range of values of the stress levels and model parameters but a poor approximation outside of that range.

Original language	English
Pages (from-to)	212-215
Number of pages	4
Journal	IEEE Transactions on Reliability
Volume	51
Issue number	2
DOIs	https://doi.org/10.1109/TR.2002.1011527
Publication status	Published - Jun 2002

Keywords

Accelerated test
Maximum likelihood estimation
Step-stress
Weibull life distribution

ASJC Scopus subject areas

Safety, Risk, Reliability and Quality
Electrical and Electronic Engineering

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10.1109/TR.2002.1011527

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AU - Alhadeed, Abdulla A.

AU - Yang, Shie Shien

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AB - Optimal times of changing stress-level for the simple step-stress plans under the Khamis-Higgins model (an alternative to the Weibull step-stress model) are determined for a wide range of values of the model parameters. The applicability of the "optimal time of changing stress" formula obtained by Khamis-Higgins for a known shape parameter to the case of unknown shape parameter is examined. Their formula provides a reasonable approximation to the actual optimal times of changing stress levels within a certain range of values of the stress levels and model parameters but a poor approximation outside of that range.

KW - Accelerated test

KW - Maximum likelihood estimation

KW - Step-stress

KW - Weibull life distribution

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JO - IEEE Transactions on Reliability

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ER -

Optimal simple step-stress plan for Khamis-Higgins model

Abstract

Keywords

ASJC Scopus subject areas

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