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Reliability Monitoring of Adhesive Joints by Piezoelectricity

압전특성을 이용한 접착 조인트의 안전성 모니터링

  • 권재욱 (LG전자 디지털 디스플레이연구소) ;
  • 진우석 (한국과학기술원 기계공학과) ;
  • 이대길 (한국과학기술원 기계공학과)
  • Published : 2003.08.01

Abstract

Since the reliability of adhesively bonded joints for composite structures is dependent on many parameters such as the shape and dimensions of joints, type of applied load, and environment, so an accurate estimation of the fatigue life of adhesively bonded joints is seldom possible, which necessitates an in-situ reliability monitoring of the joints during the operation of structures. In this study, a self-sensor method for adhesively bonded joints was devised, in which the adhesive used works as a piezoelectric material to send changing signals depending on the integrity of the joint. From the investigation, it was found that the electric charge increased gradually as cracks initiated and propagated in the adhesive layer, and had its maximum value when the adhesively bonded joint failed. So it is feasible to monitor the integrity of the joint during its lifetime. Finally, a relationship between the piezoelectric property of the adhesive and crack propagation was obtained from the experimental results.

References

  1. Reinhart, T. J. (Ed.), 1987, Composites, ASM International, Metals Park, OH, Vol. 1, pp. 479-495
  2. Vinson, J. R. and Sierakowshi, R. L., 1987, The Behavior of Structures Composed of Composite Materials, Martinus Nijhoff Publishers, pp. 239-283
  3. Kinloch, A. J., Adhesion and Adhesives, Chapman and Hall, pp. 2-3, pp. 18-55
  4. Mallick, P. K., 1988, Fiber-Reinforced Composites, Marcel Dekker, New York, pp. 417-425
  5. Bikerman, J. J., 1968, The Science of Adhesive Joints, 2nd ed., Academic Press, pp. 309-316
  6. Adams, R. D. and Peppiatt, N. A., 1977, 'Stress Analysis of Adhesive Bonded Tubular Lap Joints,' Journal of Adhesion, Vol. 9, pp. 1-18 https://doi.org/10.1080/00218467708075095
  7. Lee, S. J. and Lee, D. G., 1996, 'Development of a Fatigue Failure Model for the Adhesively Bonded Tubular Single Lap Joint under Dynamic Torsional Loading,' Journal of Adhesion, Vol. 56, pp. 157-169 https://doi.org/10.1080/00218469608010505
  8. Kwon, J. W. and Lee, D. G., 2000, 'The Effects of Surface Roughness and Bond Thickness on the Fatigue Life of Adhesively Bonded Tubular Single Lap Joints,' Journal of Adhesion Science Technology, Vol. 14, pp. 1085-1102 https://doi.org/10.1163/156856100743095
  9. Tang, B., Mommaerts, J., Duncan, R. K., Duke, J. C., Jr. and Dillad, D. A., 1993, 'Nondestructive Evaluation of Model Adhesive Joints by PVDF Piezoelectric Film Sensors,' Experimental Mechanics, Vol. 33, No. 2, pp. 102-109 https://doi.org/10.1007/BF02322485
  10. Anderson, G. L., Robertson, R. C., Peterson, B. L. and Dillard, D. A., 1994, 'Embedded Piezoelectric Sensors to Measure Peel Stresses in Adhesive Joints,' Experimental Mechanics, Vol. 34, No. 3, pp. 194-201 https://doi.org/10.1007/BF02319755
  11. Salvini, P., Scardecchia, E. and Demofonti, g., 1997, 'A Procedure for Fatigue Life Prediction of Spot Welded Joints,' Fatigue and Fracture of Engineering Materials and Structures, Vol. 20, No. 8, pp. 1117-1128 https://doi.org/10.1111/j.1460-2695.1997.tb00317.x
  12. Giurgiutiu, V., Reynolds, A. and Rogers, C. A., 1999, ' Experimental Investigation of E/M Impedance Health Monitoring for Spot-Welded Structural Joints,' Journal of Intelligent Material System and Structures, Vol. 10, pp. 802-812 https://doi.org/10.1106/N0J5-6UJ2-W1GV-Q8MC
  13. Park, G., Muntges, D. E. and Inman, D. J., 2001, 'Self-Monitoring and Self-Healing Jointed Structures,' Key Engineering Materials, Vol. 204, pp. 75-84 https://doi.org/10.4028/www.scientific.net/KEM.204-205.75
  14. Lee, D. G., Kim, K. S. and Lim, Y. T., 1991, 'An Experimental Study of Fatigue Strength for Adhesively Bonded Tubular Single Lap Joints,' Journal of Adhesion, Vol. 35, pp. 39-53 https://doi.org/10.1080/00218469108030434
  15. Choi, J. K. and Lee, D. G., 1995, 'Torque Transmission Capabilities of Bonded Polygonal Lap Joints for Carbon Fiber Epoxy Composites,' Journal of Adhesion, Vol. 48, pp. 235-250 https://doi.org/10.1080/00218469508028164
  16. Lee, S. J. and Lee, D. G., 1992, 'Development of a Failure Model for the Adhesively Bonded Tubular Single Lap Joint,' Journal of Adhesion, vol. 40, pp. 1-14 https://doi.org/10.1080/00218469208030467
  17. Choi, J. H. and Lee, D. G., 1996, 'An Experimental Study of the Static Torque Capacity of the Adhesively-Bonded Tubular Single Lap Joint,' Journal of Adhesion, Vol. 55, pp. 245-260 https://doi.org/10.1080/00218469608009950
  18. Lee, D. G., Jeong, K. S. and Choi, J. H., 1995, 'Analysis of the Tubular Single Lap Joint with Nonlinear Adhesive Properties,' Journal of Adhesion, Vol. 49, pp. 37-56 https://doi.org/10.1080/00218469508009976
  19. Lee, D. G., Kwon, J. W. and Cho, D. H., 1998, 'Hygrothermal Effects on the Strength of Adhesively Bonded Joints,' Journal of Adhesion Sicence and Technology, Vol. 12, pp. 1253-1275 https://doi.org/10.1163/156856198X00425
  20. Ikeda, T., 1996, Fundamentals of Piezoelectricity, Oxford Science Publication, Oxford

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