Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
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Finite Element Simulation of Elastic Waves for Detecting Anti-symmetric Damages in Adhesively-Bonded Single Lap Joint

단면 겹치기 접착 조인트에 존재하는 비대칭 결함 탐지를 위한 탄성파 유한요소 시뮬레이션

  • Woo, Jin-Ho (Department of Ocean Engineering, Pukyong National University) ;
  • Na, Won-Bae (Department of Ocean Engineering, Pukyong National University)
  • Published : 2009.12.31
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Abstract

This study presents a finite element simulation of elastic waves for detecting anti-symmetric damages in an adhesively-bonded single lap joint. Plane strain elements were used for modeling adherents (aluminum) and adhesives (epoxy). Three types of damage were introduced: thickness reduction, elasticity deterioration, and voids in the adhesive layers, and two excitation and reception arrangements (ER1 and ER2) were used to investigate the detectability of the damage. The simulation showed that symmetrically located damage, such as a thickness reduction, can be detected by one excitation and one reception arrangement (ER1) and anti-symmetric damages, such as elasticity deterioration and voids, can be detected by modified two-point elastic wave excitation (ER2). Compared with the ER1 arrangement, the ER2 arrangement does not require a baseline signal for damage detection; hence, an efficient method of anti-symmetric damage detection in an adhesively-bonded single lap joint is proposed.

Keywords

References

  1. Andruet, R.H., Dillard, D.A. and Holzer, S.M. (2001). "Twoand Three-dimensional Geometrical Nonlinear Finite Elements for Analysis of Adhesive Joints", International Journal of Adhesion & Adhesives, Vol 21, pp 17-34 https://doi.org/10.1016/S0143-7496(00)00024-5
  2. Avila, A.F. and Bueno, P.D.O. (2004). "Stress Analysis on a Wavy-lap Bonded Joint for Composites", International Journal of Adhesion & Adhesives, Vol 24, pp 407-414 https://doi.org/10.1016/j.ijadhadh.2003.12.001
  3. Carpenter, W.C. and Barsoum, R. (1989). "Two Finite Elements for Modeling the Adhesive in Bonded Configuration", Journal of Adhesives, Vol 30, pp 25-46 https://doi.org/10.1080/00218468908048192
  4. Deng, M., Wang, P. and Lv, X. (2004). "Nondestructive Evaluation of Adhesive Joints in Layered Structures using Nonlinear Measurement of Second Harmonics of Ultrasonic Lamb Waves", 2004 IEEE International Ultrasonics, Ferroelectrics, and Frequency Control Joint 50th Anniversary Conference, pp 2291-2294
  5. Goncalves, J.P.M., de Moura, M.F.S.F. and de Castro, P.M.S.T. (2002). "A Three-Dimensional Finite Element Models for Stress Analysis of Adhesive Joints", International Journal of Adhesion & Adhesives, Vol 22, pp 357-365 https://doi.org/10.1016/S0143-7496(02)00015-5
  6. Kim, J.K., Woo, J. and Na, W.B. (2008). 'Finite Element Simulation of Two-Point Elastic Wave Excitation Method for Damage Detection in Concrete Structures', Russian Journal of Nondestructive Testing, Vol 44, No 10, pp 719-726 https://doi.org/10.1134/S1061830908100094
  7. Kim, S.B. and Sohn, H. (2006). "Baseline-free Crack Detection in Steel Structures using Lamb Waves and PZT Polarity", Journal of the Earthquake Engineering Society of Korea, Vol 10, No 6, pp 79-91 https://doi.org/10.5000/EESK.2006.10.6.079
  8. Li, G. and Lee-Sullivan, P. (2001). "Finite Element and Experimental Studies on Single-Lap Balanced Joints in Tension", International Journal of Adhesion & Adhesives, Vol 21, pp 211-220 https://doi.org/10.1016/S0143-7496(00)00052-X
  9. Pandurangan, P. and Buckner, G.D. (2006). "Vibration Analysis for Damage Detection in Metal-to-Metal Adhesive Joints", Experimental Mechanics, Vol 46, pp 601-607 https://doi.org/10.1007/s11340-006-8736-y
  10. Puthillath, P.K., Kannajosyula, H., Lissenden, C.J. and Rose, J.L. (2009). "Ultrasonic Guided Wave Inspection of Adhesive Joints: A Parametric Study for a Step-Lap Joint", Review of Progress in Quantitative Nondestructive Evaluation: Proceedings of the 35th Annual Review of Progress in Quantitative Nondestructive Evaluation, Vol 1096, pp 1127-1133
  11. Richardson, G., Crocombe, A.D. and Smith, P.A. (1993). "A Comparison of Two and Three-Dimensional Finite Element Analysis of Adhesive Joints", International Journal of Adhesion & Adhesives, Vol 13, pp 193-200 https://doi.org/10.1016/0143-7496(93)90042-8
  12. Rose, J.L., Rajana, K.M. and Hansch, M.K.T. (1995). "Ultrasonic Guided Waves for NDE of Adhesively Bonded Structures", Journal of Adhesion, Vol 50, pp 71-82 https://doi.org/10.1080/00218469508027114
  13. Tong, L. and Steven, G.P. (1999). Analysis and Design of Structural Bonded Joints, Kluwer Academic Publishers
  14. Wooley, G.R. and Carver, D.R. (1971). "Stress Concentration Factors for Bonded Lap Joint", Journal of Aircraft, Vol 8, pp 817-820 https://doi.org/10.2514/3.44305
  15. Woo, J., Na, W.B., Kim, J.T. and Cho, H.M. (2007). "Finite Element Simulation of Elastic Wave Propagation in a Concrete Plate - Modeling and Damage Detection", Journal of Ocean Engineering and Technology, Vol 21, No 6, pp 26-33
  16. Zeng, Q. and Sun, C.T. (2001). "Novel Design of Bonded Lap Joint", AIAA Journal, Vol 39, pp 1991-1996 https://doi.org/10.2514/2.1191