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An empirical model to describe performance degradation for warranty abuse detection in portable electronics

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  • Oh, Hyunseok
  • Choi, Seunghyuk
  • Kim, Keunsu
  • Youn, Byeng D.
  • Pecht, Michael

Abstract

Portable electronics makers have introduced liquid damage indicators (LDIs) into their products to detect warranty abuse caused by water damage. However, under certain conditions, these indicators can exhibit inconsistencies in detecting liquid damage. This study is motivated by the fact that the reliability of LDIs in portable electronics is suspected. In this paper, first, the scheme of life tests is devised for LDIs in conjunction with a robust color classification rule. Second, a degradation model is proposed by considering the two physical mechanisms—(1) phase change from vapor to water and (2) water transport in the porous paper—for LDIs. Finally, the degradation model is validated with additional tests using actual smartphone sets subjected to the thermal cycling of −15°C to 25°C and the relative humidity of 95%. By employing the innovative life testing scheme and the novel performance degradation model, it is expected that the performance of LDIs for a particular application can be assessed quickly and accurately.

Suggested Citation

  • Oh, Hyunseok & Choi, Seunghyuk & Kim, Keunsu & Youn, Byeng D. & Pecht, Michael, 2015. "An empirical model to describe performance degradation for warranty abuse detection in portable electronics," Reliability Engineering and System Safety, Elsevier, vol. 142(C), pages 92-99.
    • Handle: RePEc:eee:reensy:v:142:y:2015:i:c:p:92-99
    DOI: 10.1016/j.ress.2015.04.019
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    References listed on IDEAS

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    1. Ling, Li & Xu, Wei & Li, Minghai, 2009. "Parametric inference for progressive Type-I hybrid censored data on a simple step-stress accelerated life test model," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 79(10), pages 3110-3121.
    2. Awanou, Cossi Norbert & Hazoume, Roger-Paul, 1997. "Study of natural condensation of atmospheric humidity," Renewable Energy, Elsevier, vol. 10(1), pages 19-34.
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    Citations

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    Cited by:

    1. Tong Peng & Liu Chunling, 2020. "Designing differential service strategy for two-dimensional warranty based on warranty claim data under consumer-side modularisation," Journal of Risk and Reliability, , vol. 234(3), pages 550-561, June.
    2. Liu, Jie & Zio, Enrico, 2017. "Weighted-feature and cost-sensitive regression model for component continuous degradation assessment," Reliability Engineering and System Safety, Elsevier, vol. 168(C), pages 210-217.
    3. Qian, C. & Fan, X.J. & Fan, J.J. & Yuan, C.A. & Zhang, G.Q., 2016. "An accelerated test method of luminous flux depreciation for LED luminaires and lamps," Reliability Engineering and System Safety, Elsevier, vol. 147(C), pages 84-92.
    4. Zhao, Xiujie & Liu, Bin & Xu, Jianyu & Wang, Xiao-Lin, 2023. "Imperfect maintenance policies for warranted products under stochastic performance degradation," European Journal of Operational Research, Elsevier, vol. 308(1), pages 150-165.
    5. Yoon, Joung Taek & Youn, Byeng D. & Yoo, Minji & Kim, Yunhan & Kim, Sooho, 2019. "Life-cycle maintenance cost analysis framework considering time-dependent false and missed alarms for fault diagnosis," Reliability Engineering and System Safety, Elsevier, vol. 184(C), pages 181-192.

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