Abstract
We propose a simple and comparatively high spatial resolution method to nondestructively detect small plane cracks in solid materials. In this method, we used two techniques, a two-layered self-made transducer and low-power laser pulses. The two-layered transducer has two roles, it transmits lowfrequency, high-amplitude longitudinal waves from a PZT transducer and it is a wideband receiver made of PVDF film. The low-frequency excitation causes the fluctuation of cracks. Combining these techniques, we succeeded in detecting plane crack tips and presenting them as two-dimensional images.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
O. Buck, W. L. Morris and J. M. Richardson, “Acoustic harmonic generation at unbonded interfaces fatigue cracks”, Appl. Phys. Lett. Vol. 33, pp. 371–373, 1978.
I. Yu. Solodov, N. Krohn and G. Busse, “CAN: an example of nonclassical acoustic nonlinearity in solids”, Ultrasonics Vol. 40, pp. 621–625, 2002.
K. Yamanaka, T. Mihara and T. Tsuji, “Evaluation of nanoscale cracks by low pass filter effect in nonlinear ultrasound”, Proc. IEEE Ultrasonics Symp., 4J-1, 2003.
Y. Ohara, R. Saeki, T. Ogata, T. Mihara and K. Yamanaka, “Evaluation of closed cracks by nonlinear ultrasonic phased array”, Proc. Symp. Ultrason. Electron. Vol. 26, pp. 319–320, 2006.
I. Akiyama, A. Ohya and S. Saito, “Speckle noise reduction by superposing many higher harmonic images”, Jpn. J. Appl. Phys. Vol. 44, pp. 4631–4636, 2005.
M. Fukuda, M. Nishihara and K. Imano, “Real time extraction system using double-layered piezoelectric transducer for second-harmonic ultrasonic pulse waves”, Jpn. J. Appl. Phys. Vol. 45, pp. 4556–4559, 2006.
R. J. von Gutfeld and R. L. Melcher, “20-MHz acoustic waves from pulsed thermoelastic expansions of constrained surfaces”, Appl. Phys. Lett. Vol. 30, pp. 257–259, 1977.
D. A. Hutchins, R. J. Dewhurst and S. B. Palmer, “Laser generated ultrasound at modified metal surfaces”, Ultrasonics Vol. 19, pp. 103–108, 1981.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2008 Springer Science+Business Media B.V.
About this paper
Cite this paper
Fujii, H., Miyake, T., Matsukawa, M. (2008). Observation of Two-Dimensional Spatial Distribution of Plane Crack Tips With Low-Power Pulsed Laser. In: Akiyama, I. (eds) Acoustical Imaging. Acoustical Imaging, vol 29. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-8823-0_33
Download citation
DOI: https://doi.org/10.1007/978-1-4020-8823-0_33
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-4020-8822-3
Online ISBN: 978-1-4020-8823-0
eBook Packages: Physics and AstronomyPhysics and Astronomy (R0)