The Curved Plate Flaw's Location and Direction Detecting Based on the Transducer Array

Abstract:

The curved structural plate components have been widely used in petroleum, natural gas, chemical industry, and other industries fields, monitoring and detecting the curved structural plate components flaw has a great significance for improving the components integrity, reliability and lifespan in service. Based on the elastic wave fundamental theory, elastic wave equations, and phase velocity dispersion characteristic curves in curved plate component, the article gives the phase velocity practical detecting method. By using the comsol finite element software, the author proposed a wave propagating forward modeling analytical method, which gives a guidance to study the relationship between the wave and the flaw. By adopting the ellipse algorithm, the article proposed a positioning and imaging method which was used to locate the flaws position and distinguish the flaws direction. Based on the theoretical and technical analysis above, a number of experiments has been done, and the results shows that the detecting and imaging method can locate and image the flaws position and its geometrical morphology precisely for the curved plates flaw detecting.

• Periodical: Applied Mechanics and Materials (Volume 389)
• Pages: 223-230
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.389.223
• Online since: August 2013
• Authors: Xi Peng Li, Chun Guang Xu, Zhao Liu, Han Hui Xu
• Keywords: Curved Plate, Ellipse Algorithm, Imaging, Transducer Array

References

[1] C.G. Xu, J.L. Rose and X. Zhao: Journal of Robotics and Mechatronica, Vol. 21 (2008) No. 5, pp.568-573.

[2] R. Raisutis, R. Kazys, L. Mazeika and R. Sliteris: Ultragarsas, Vol. 62 (2007) No. 3, pp.26-31.

[3] X. Zhao, R.L. Royer, S.E. Owens and J.L. Rose: Smart Materials and Structures, Vol. 20 (2011), 105002.

[4] K. Edalati, A. Kermani, B. Naderi and B. Panahi: Middle East Nondestructive Testing Conference & Exhibition (Bahrain, Manama, Nov. 2005). pp.27-30.

[5] S.G. Kargl, P.L. Marston: Journal of the Acoustical Society of America, Vol. 88 (1990), pp.1103-1113.

[6] X. Wang, G. Lu, S.R. Guillow: International Journal of Solids and Structures, Vol. 39 (2002), pp.4027-4037.

[7] S. Towfighi, T. Kundu: International Journal of Solids and Structures, Vol. 40 (2003), pp.5495-5510.

[8] J.G. Yu, B. Wu and C.F. He: International Journal of Solids and Structures, Vol. 44 (2007), pp.3627-3637.

[9] P.D. Wicox, C. Holmes and B. W. Drinkwater: Ultrasonics, Ferroelectrics and Frequency Control, IEEE Transactions on, Vol. 54 (2007), pp.1541-1550.

[10] L. Ye, Y. Lin, Z.Q. Su and N. Huang: Smart Material and Structure, Vol. 16 (2007), p.1907-(1914).

[11] C.H. Wang, J.T. Rose and F.K. Chang: Smart Mater. Struct., Vol. 13 (2004), pp.415-423.

[12] L. Yu, V. Giurgiutiu: Smart Structures and Systems, Vol. 1 (2005) No. 2, pp.185-215.

[13] J.B. Ihn, F.K. Chang: Smart Mater. Struct., Vol. 13 (2004), pp.609-620.

[14] C. Yang, L. Ye, Z. Su and M. Bannister: Compos. Struct., Vol. 75 (2006), pp.267-275.

[15] A.J. Croxford, P.D. Wilcox and B.W. Drinkwater: Proc. SPIE, Vol. 69 (2008), p.35 69350E-1-69350E-9.