Sage Journals: Discover world-class research

Abstract

This study concerns the ability of ultrasonic waves to detect the damage caused to polymer composites during water immersion. The acoustical parameters such as velocity and attenuation are linked to the viscoelasticity and microstructure of the propagation medium. For ultrasonic propagation, composite materials are dispersive, so their acoustical parameters are measured by means of pulsed ultrasonic spectroscopy.

Model samples with certain properties are chosen in order to isolate the different damage mechanisms. In these conditions, the results of ultrasonic tests during hydrolytic aging allowed us to correlate the evolution of acoustical parameters to the damage level and nature. The ultrasonic results have been validated by complementary mechanical tests and microscopic observations carried out on the same samples.

From these results, it is possible to implement a practical procedure allowing the damage quantitative evaluation from ultrasonic velocity and attenuation measurements. The damage mechanism is identified through a detailed analysis of the velocity and attenuation dispersion laws.

Keywords

ultrasonic aging damage

Get full access to this article

View all access options for this article.

References

1. Apicella, A. and Nicolais, L. Advanced Polymer Sciences, vol. 72, 1985, pp. 69-75.

2. Bellenger, V. , Verdu, J. and Morel, E. Journal of Material Sciences, vol. 24, 1989, pp. 24-32.

3. Browning, C. E. Polymer Engineering Sciences, vol. 18, no. 1, 1978, pp. 16-24.

4. Gupta, V. B. and Drzal, L. T. Journal of Applied Polymer Sciences, vol. 30, 1985, pp. 4467-4473.

5. Lau, C. Hood, K. and Wright, W. 17th National Sampe Technical Conference, London, Oct. 1985, pp. 179-187.

6. Joncock, P. and Tudgey, G. British Polymer Journal, vol. 15, 1983, pp. 14-21.

7. Auld , 1973, Acoustic field and waves in solids, vol. 1, New York: Wiley.

8. Fisher, S. , Roman, I. and Harel, H. J. of Testing and Evaluation, vol. 6, no. 5, 1981, pp. 33-42.

9. Papadakis, E. Physical Acoustic, vol. 4, chap. 4, 1985, pp. 269-327.

10.

10. Royer, D. Masson, 1996, Paris.

11.

11. Chateauminois, A. , Chabert, B. and Soulier, V. Polymer Composite, vol. 16, no. 4, 1995, pp. 289-295.

12.

12. Jayet, Y. , Saint Pierre, N. , Tatibouet, J. and Zellouf, D. Ultrasonics, vol. 34, 1996, pp. 397-400.

13.

13. Scott, D. , Lai, J. and Zureick, A. J. Reinforced Plastic and Composites, vol. 14, 1995, pp. 588-617.

14.

14. Fabeny, B. and Curtin, W. Acta Materialia, vol. 44, no. 9, 1966, pp. 34-39.

15.

15. Raghava, J. and Meshii, M. Applied Sciences and Manufacturing, vol. 27A, no. 12, 1996, pp. 12-23.

16.

16. Khavandi, A. 1997, Lyon France, These INSA.

Application of Ultrasonic Spectroscopy for Hydrolytic Damage Detection in GRFC: Correlations with Mechanical Tests and Microscopic Observations

Abstract

Keywords

Get full access to this article

References