Considerations for the Ultrasonic Inspection of Metal-Adhesive Bonds Using EMATs
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Abstract
This paper describes some results on the ultrasonic analysis of adhesively bonded aluminium plates using normal incidence radially polarised shear wave ElectroMagnetic Acoustic Transducers (EMATs). The EMAT system presented here has undergone significant development work and improvements compared to previously published examples.(9,19) The electronic ‘deadtime’ of the system has been reduced to approximately 1 microsecond and the frequency range over which measurements can be taken has been extended. The capability of the technique to detect gross and subtle defects is demonstrated.
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Research context
OpenAlex topics: Ultrasonics and Acoustic Wave Propagation · Engineering Applied Research · Material Properties and Processing
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References (20)
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1. J. L. Rose and P. A. Meyer, ‘Ultrasonic procedures for predicting adhesive bond strengths’, Mat. Eval., vol. 31, no. 6, pp. 109–114, (1973).
2. S. I. Rokhlin, M. Hefets and M. Rosen, ‘An ultrasonic interface wave method for predicting the strengths of adhesive bonds’, J. Appl. Phys. vol. 52, pp. 2847–2851, (1981).10.1063/1.329016 ↗
3. H.G. Tattersall, ‘The ultrasonic pulse echo technique as applied to adhesion testing’, J. Phys. D: Applied Physics, vol. 6, no. 7, pp. 819–832, (1973).10.1088/0022-3727/6/7/305 ↗
4. E. Segal and J. L. Rose, ‘Nondestructive techniques for adhesive bond joints’, in: Research Techniques in Nondestructive Testing, vol. 4, Ed. R.S. Sharpe, Adcademic Press, London, pp. 275–316, (1980).
5. R. D. Adams and P. Cawley, ‘A review of defect types and non-destructive testing techniques for composites and bonded joints’, NDT International, vol. 21, no. 4, pp. 208–222, (1988).10.1016/0308-9126(88)90333-1 ↗
6. G. A. Alers and L. R. Burns, ‘EMAT designs for special applications, Materials Eval., vol. 45, no. 10, pp. 1184–1189, (1987).
7. F. He, S. I. Rokhlin and L. Adler, ‘Application of SH and Lamb wave EMATs for evaluating adhesive joints’, Rev. of Prog. in QNDE, Ed. D. C. Thompson and D. E. Chimenti, Williamsburg, pp. 911–918, (1987).10.1007/978-1-4613-0979-6_4 ↗
8. D. A. Hutchins, M. D. C. Moles, G. S. Taylor and S. B. Palmer, ‘Non-contact ultrasonic inspection of diffusion bonds in titanium, Ultrasonics, vol. 29, pp. 294–301, (1991).10.1016/0041-624X(91)90025-4 ↗
9. S. Dixon, C. Edwards and S. B. Palmer, ‘The analysis of adhesive bonds using electromagnetic acoustic transducers’, Ultrasonics, vol. 32, no. 6, pp. 425–430, (1994).10.1016/0041-624X(94)90061-2 ↗
10. H. M. Frost, ‘Electromagnetic-ultrasonic transducer:principles, practice and applications’, in: Physical Acoustics XIV, Ed. W. P. Mason and R. N. Thurston, Academic Press, New York, pp. 179–275.10.1016/B978-0-12-477914-3.50008-6 ↗
11. E. R. Dobbs, ‘Electromagnetic generation of ultrasonic waves’, in: Physical Acoustics X, Ed. W. P. Mason and R. N. Thurston, Academic Press, New York, pp. 127–189.10.1016/B978-0-12-477910-5.50008-8 ↗
12. K. Kawashima, ‘Theory and numerical calculations of the acoustic field produced in metal by an electromagnetic ultrasonic transducer’, J. Soc. Am., vol. 60, pp. 1089–1099, (1976).
13. J. D. Achenbach, ‘Wave propagation in elastic solids’, North-Holland, (1973).
14. M. de Billy, ‘Determination of the resonance spectrum of elastic bodies via the use of short pulses and Fourier transform theory’, J. Soc. Am., vol. 79, pp. 219–221, (1986).
15. C. C. H. Guyott and P. Cawley, ‘The ultrasonic vibration characteristics of adhesive joints’, J. Soc. Am., vol. 83, pp. 632–640, (1988).
16. L. J. Bond and N. Saffari, ‘Mode conversion in ultrasonic testing’, in: Research Techniques in Nondestructive Testing, vol. 7, Ed. R. S. Sharpe, Adcademic Press, London, pp. 145–189, (1984).
17. R. J. Roe, ‘Description of crystalline orientation in polycrystalline materials’, J. Appl. Phys., vol. 36, pp. 2024–2027, (1965).10.1063/1.1714396 ↗
18. Y. Poa, W. Sachse and H. Fukuoka, ‘Acoustoelasticity residual stress measurements’, in: Physical Acoustics XVII, Ed. W. P. Mason and R. N. Thurston, Academic Press, New York, pp. 61–143, (1979).
19. S. Dixon, C. Edwards and S. B. Palmer, ‘A study of acoustic birefringence in aluminium plate using broadband electromagnetic acoustic transducers’, Ultrasonics International 93 Conf. Proc., Butterworth-Heinemann, pp. 213–216, (1993).10.1016/B978-0-7506-1877-9.50055-X ↗
20. L. M. Brekovskikh, ‘Waves in layered media’, Academic Press New York, (1960).