DOI QR코드

DOI QR Code

A new damage identification approach based on impedance-type measurements and 2D error statistics

  • 투고 : 2014.03.16
  • 심사 : 2015.06.27
  • 발행 : 2015.12.25

초록

The electro-mechanical impedance (EMI) technique makes use of surface-bonded lead zirconate titanate (PZT) patches as impedance transducers measuring impedance variations monitored on host structural components. The present experimental work further evaluate an alternative to the conventional EMI technique which performs measurements of the variations in the output voltage of PZT transducers rather than computing electromechanical impedance (or admittance) itself. This paper further evaluates a variant of the EMI approach presented in a previous work of the present authors, suitable, for low-cost concrete structures monitoring applications making use of a credit card-sized Raspberry Pi single board computer as core hardware unit. This monitoring approach is also deployed by introducing a new damage identification index based on the ratio between the area of the 2-D error ellipse of specific probability of EMI-based measurements containment over that of the 2-D error circle of equivalent probability. Experimental results of damages occurring in concrete cubic and beam specimens are investigated under increasing loading conditions. Results illustrate that the proposed technique is an efficient approach for identification and early detection of damage in concrete structures.

키워드

참고문헌

  1. Annamdas, V.G.M., Yang, Y. and Soh, C.K. (2010), "Impedance based concrete monitoring using embedded PZT sensors", Int. J. Civil Struct. Eng., 1(3), 414-424.
  2. Chin, G.Y. (1987), Two Dimensional Measures Of Accuracy In Navigational Systems, Technical Report DOT-TSC-RSPA-87-1. US Dept of Transportation.
  3. Mertikas, S. (1994), Error Distributions And Accuracy Measures In Navigation : An Overview, Technical Report No.113, Dept. Surveying Engng., Univ of New Brunswick, Canada.
  4. Na, S. and Lee, H.K. (2012), "A technique for improving the damage detection ability of the electro-mechanical impedance method on concrete structures", Smart Mater. Struct., 21(8), 085024:1-085024:9.
  5. Park, G., Cudney, H.H. and Inman, D.J. (2000), "Impedance-based health monitoring of civil structural components", Infrastuct. Syst., 6(4), 153-160. https://doi.org/10.1061/(ASCE)1076-0342(2000)6:4(153)
  6. Park, G., Cudney, H.H. and Inman, D.J. (2000), "Overview of piezoelectric impedance-based health monitoring and path forward", Shock Vib. Dig., 35(6), 451-463. https://doi.org/10.1177/05831024030356001
  7. Park, S., Ahmad, S., Yun, C.B. and Roh, Y. (2006), "Multiple crack detection of concrete structures using impedance-based structural health monitoring techniques", Exp. Mech., 46(5), 609-618. https://doi.org/10.1007/s11340-006-8734-0
  8. Park, S., Kim, J.W., Lee, C. et al. (2011), "Impedance-based wireless debonding condition monitoring of CFRP laminated concrete structures", NDT & E Int., 44(2), 232-238. https://doi.org/10.1016/j.ndteint.2010.10.006
  9. Peairs, D.M., Park, G. and Inman, D.J. (2004), "Improving accessibility of the impedance-based structural health monitoring method", J. Intel. Mat. Syst. Str., 15(2), 129-139. https://doi.org/10.1177/1045389X04039914
  10. Providakis, C.P., Tsistrakis, S., Voutetaki, M., Tsompanakis, J., Stavroulaki, M., Agadakos, J., Kampianakis, L. and Pentes, G. (2015), "WiAMS: An innovative wireless damage detection monitoring system using electromechanical impedance-based and extreme value statistical approach", J. Struct. Control Health Moni., submitted.
  11. Sekhar, A.S. (2008), "Multiple cracks effect and identification", Mech. Syst. Signal Pr., 22(4), 845-878. https://doi.org/10.1016/j.ymssp.2007.11.008
  12. Shin, S.W. and Oh, T.K. (2009), "Application of electro-mechanical impedance sensing technique for online monitoring of strength development in concrete using smart PZT patches", Construct. Build. Mater., 23(2), 1185-1188. https://doi.org/10.1016/j.conbuildmat.2008.02.017
  13. Song, G., Gu, H., Mo, Y.L., Hsu, T. and Dhonde, H. (2007), "Concrete structural health monitoring using embedded piezoceramic transducers", Smart Mater. Struct., 16(4), 959-968. https://doi.org/10.1088/0964-1726/16/4/003
  14. Tawie, R. and Lee, H.K. (2010), "Monitoring the strength development in concrete using EMI sensing technique", Construct. Build. Mater., 24(9), 1746-1753. https://doi.org/10.1016/j.conbuildmat.2010.02.014
  15. Tawie, R. and Lee, H.K. (2011), "Characterization of cement based materials using a reusable piezoelectric impedance based sensor", Smart Mater. Struct., 20(8), 085023. https://doi.org/10.1088/0964-1726/20/8/085023
  16. Tseng, K.K. and Wang, L. (2004), "Smart piezoelectric transducers for in situ health monitoring of concrete", Smart Mater. Struct.,13(5), 1017-1024. https://doi.org/10.1088/0964-1726/13/5/006
  17. Tseng, K.K.H., Soh, C.K. and Naidu, A.S.K. (2001), "Non-parametric damage detection and characterization using smart piezoelectric material", Smart Mater. Struct., 11(3), 317-329. https://doi.org/10.1088/0964-1726/11/3/301
  18. Wang, D.S. and Zhu, H.P. (2011), "Monitoring of the strength gain of concrete using embedded PZT impedance transducer", Constr. Build. Mater., 25(9), 3703-3708. https://doi.org/10.1016/j.conbuildmat.2011.04.020
  19. Yang, Y. and Divsholi, B.S. (2010), "Sub-frequency interval approach in electromechanical impedance technique for concrete structure health monitoring", Sensors, 10(12), 11644-11661. https://doi.org/10.3390/s101211644
  20. Yang, Y., Hu, Y. and Lu, Y. (2008), "Sensitivity of PZT impedance sensors for damage detection of concrete structures", Sensors, 8(1), 327-346. https://doi.org/10.3390/s8010327

피인용 문헌

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