Life assessment of monitoring piezoelectric sensor under high temperature at high-level nuclear waste repository

Changhee Park; Hyun-Joong Hwang; Chang-Ho Hong; Jin-Seop Kim; Gye-Chun Cho

doi:10.9711/KTAJ.2023.25.6.509

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2023 Vol.25, Issue 6 Preview Page Next Page

Research Paper

Life assessment of monitoring piezoelectric sensor under high temperature at high-level nuclear waste repository 고준위방사성폐기물 처분장 고온 환경 조건에 대한 모니터링용 피에조 센서의 수명 평가

30 November 2023. pp. 509-523

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Abstract

The high-level nuclear waste (HLW) repository is exposed to complex environmental conditions consisting of high temperature, high humidity, and radiation, resulting in structural deterioration. Therefore, structural health monitoring is essential, and piezo sensors are used to detect cracks and estimate strength. However, since the monitoring sensors installed in the disposal tunnel and disposal container cannot be replaced or removed, the quantitative life of the monitoring sensor and its suitability must be assessed. In this study, the life of a piezo sensor for monitoring was assessed using an accelerated life test (ALT). The failure mode and mechanism of the piezo sensor under high temperature conditions were determined, and temperature stress’s influence on the piezo sensor’s life was analyzed. ALT was conducted on temperature stress and the relationship between temperature stress and piezo sensor life was suggested. The life of the piezo sensor was assessed using the Weibull probability distribution and the Arrhenius acceleration model. The suggested relationship can be used in multiple stress ALT designs for more precise life assessment.

Keywords

High-level nuclear waste repository

Accelerated life test

Life assessment

Piezo sensor

Failure mode

고준위방사성폐기물 처분장은 고온, 다습, 방사선의 복합적인 환경 조건에 노출되며 이로 인해 구조물의 열화가 가속된다. 따라서 처분장에 대한 구조물 건전성 모니터링이 필수적이며 균열 탐지, 강도 추정 등을 위해 피에조 센서가 활용된다. 다만 처분 터널 및 처분 용기에 설치되는 모니터링 센서는 교체 및 제거가 불가능하기 때문에 모니터링 센서의 정량적인 수명을 평가하고 적합성을 판단해야 한다. 본 연구에서는 가속수명시험을 활용하여 모니터링용 피에조 센서에 대한 수명을 평가하였다. 고온 조건에서 나타나는 피에조 센서의 고장 모드와 고장 메커니즘을 도출하였으며 온도 스트레스가 피에조 센서 수명에 미치는 영향을 분석하였다. 또한 온도 스트레스에 대한 가속수명시험을 수행하여 와이블 수명 확률 분포 및 아레니우스 가속모형을 통해 온도 스트레스와 피에조 센서 수명 간의 관계식을 제시하고 수명을 평가하였다. 본 연구에서 제시된 온도 스트레스와 수명 간의 관계를 통해 보다 정확한 수명 평가를 위한 복합스트레스 가속수명시험 설계에 도움이 될 것으로 판단된다.

키워드

고준위방사성폐기물 처분장

가속수명시험

수명 평가

피에조 센서

고장 모드

References

Choi, J.W., Choi, H.J., Lee, J.Y., Chun, K.S. (2006), High-level radwaste disposal technology development, KAERI/RR-2765/2006, Korea Atomic Energy Research Institute, pp. 276-289.

Escobar, L.A., Meeker, W.Q. (1995), "Planning accelerated life tests with two or more experimental factors", Technometrics, Vol. 37, No. 4, pp. 411-427. 10.1080/00401706.1995.10484374

Evans, M. (2009), Minitab manual, W.H. Freeman, New York, NY, pp. 129-150.

Field, K.G., Remec, I., Le Pape, Y. (2015), "Radiation effects in concrete for nuclear power plants - Part I: Quantification of radiation exposure and radiation effects", Nuclear Engineering and Design, Vol. 282, pp. 126-143. 10.1016/j.nucengdes.2014.10.003

Hwang, H.J., Park, C., Hong, C.H., Kim, J.S., Cho, G.C. (2022), "Design of accelerated life test on temperature stress of piezoelectric sensor for monitoring high-level nuclear waste repository", Journal of Korean Tunnelling and Underground Space Association, Vol. 24, No. 6, pp. 451-464. 10.9711/KTAJ.2022.24.6.451

Jung, Y.M., Joo, W.J., Jeong, S.K. (2012), "Investigation into the worst stress condition for an accelerated life test of a compressor in refrigerators-acceleration factor and the reducible test time under high temperature", Journal of Power System Engineering, Vol. 16, No. 3, pp. 44-50. 10.9726/kspse.2012.16.3.044

Kim, H.M., Wi, S.H., Lee, H.B. (2011), "Life assessment of tire pressure sensor with accelerated life test", Proceedings of the Korean Reliability Society Conference, Gyeongsan, pp. 41-48.

Kim, J.J. (2009), "Accelerated life test and example", Journal of Korean Society of Mechanical Engineers, Vol. 49, No. 12, pp. 60-64.

Kim, J.S., Cho, W.J., Park, S., Kim, G.Y., Baik, M.H. (2019), "A review on the design requirement of temperature in high-level nuclear waste disposal system: based on bentonite buffer", Journal of Korean Tunnelling and Underground Space Association, 21, No. 5, 587-609. 10.9711/KTAJ.2019.21.5.587

Kim, S.H., Yeom, J., Baek, I.S., Kim, J.S., Sung, S.I. (2020), "Determining the statistical sample size for reliability testing", Journal of Applied Reliability, Vol. 20, No. 1, pp. 84-93. 10.33162/JAR.2020.3.20.1.84

Kontani, O., Ichikawa, Y., Ishizawa, A., Takizawa, M., Sato, O. (2014), "Irradiation effects on concrete structures", Infrastructure Systems for Nuclear Energy, pp. 459-473. 10.1002/9781118536254.ch27

Lee, K.H., Yun, W.Y. (2009), "Accelerated life test design for vacuum cleaner motors", Journal of Applied Reliability, Vol. 9, No. 1, pp. 47-58.

Lim, S.Y., Jang, I.H., Lee, Y.J., Lim, H.W. (2015), "Improvement through failure modes and failure mechanisms of piezoelectric sensors using the AVC", Journal of Advanced Engineering and Technology, Vol. 8, No. 2, pp. 135-140. 10.35272/jaet.2015.8.2.135

Ma, Q., Guo, R., Zhao, Z., Lin, Z., He, K. (2015), "Mechanical properties of concrete at high temperature - A review", Construction and Building Materials, Vol. 93, pp. 371-383. 10.1016/j.conbuildmat.2015.05.131

Min, K.C., Yun, Y.G., Kim, M.S. (2011), "An accelerated life test of LED lights for aviation taxiway", Journal of Applied Reliability, Vol. 11, No. 2, pp. 127-140.

Nelson, W.B. (2009), Accelerated testing: statistical models, test plans, and data analysis, John Wiley & Sons, Hoboken, New Jersey, pp. 22-42.

Sall, J., Lehman, A., Stephens, M., Loring, S. (2017), JMP start statistics: a guide to statistics and data analysis using JMP, SAS Institute, Cary, North Carolina, pp. 281-301.

Seo, S.K., Yum, B.J. (1991), "Accelerated life test plans under intermittent inspection and type-I censoring: The case of weibull failure distribution", Naval Research Logistics (NRL), Vol. 38, No. 1, pp. 1-22. 10.1002/1520-6750(199102)38:1<1::AID-NAV3220380103>3.0.CO;2-3

Trevisanello, L., Meneghini, M., Mura, G., Vanzi, M., Pavesi, M., Meneghesso, G., Zanoni, E. (2008), "Accelerated life test of high brightness light emitting diodes", IEEE Transactions on Device and Materials Reliability, Vol. 8, No. 2, pp. 304-311. 10.1109/TDMR.2008.919596

Wlodkowski, P.A. (1999), Physics of failure modes in accelerometers utilizing single crystal piezoelectric materials, Doctoral Dissertation, University of Maryland, College Park, pp. 64-125.

Woo, J.T. (2018), "A study on the regulation of durability standard of underground structures monitoring sensors", Journal of Korean Tunnelling and Underground Space Association, Vol. 20, No. 1, pp. 73-81. 10.9711/KTAJ.2018.20.1.073

Information

Publisher :Korean Tunneling and Underground Space Association
Publisher(Ko) :한국터널지하공간학회
Journal Title :Journal of Korean Tunnelling and Underground Space Association
Journal Title(Ko) :한국터널지하공간학회 논문집
Volume : 25
No :6
Pages :509-523
Received Date : 2023-10-26
Revised Date : 2023-11-11
Accepted Date : 2023-11-20
DOI :https://doi.org/10.9711/KTAJ.2023.25.6.509

Journal of Korean Tunnelling and Underground Space Association ISSN:2233-8292(Print) 2287-4747(Online) 한국터널지하공간학회 논문집

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