NDT.net - March 2001, Vol. 6 No. 03

12th International Symposium
on Nondestructive Testing of Wood

Ultrasonic Measurement of Applied Stresses in Wood by Acoustoelastic Birefringent Method

Sasaki, Yasutoshi
Assoc.Professor
Hasegawa, Masumi
Graduate Student
Graduate School of Bioagricultural Sciences
Nagoya University, Nagoya 464-8601, Japan
Corresponding Author Contact:
Email: gasteig@agr.nagoya-u.ac.jp

Abstract

1. Introduction

2. Acoustoelastic Experiment

3. Stress Measurement by acoustoelastic Birefringent Method

4. Conclusion

Reference

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  3. Bucur, V. 1995. Acoustics of wood.  CRC Press, Boca Raton, p 79
  4. Crecraft, D.I. 1967. The measurement of applied and residual stresses in metals using ultrasonic waves, Journal of Sound and Vibration 5:173-192
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  13. Sasaki, Y., Iwata, T., Kuraya, K., Ando, K. 1997. Acoustoelastic effect of wood I. Effect of compressive stress on the velocity of ultrasonic longitudinal waves parallel to the longitudinal direction of the wood, Mokuzai Gakkaishi (J Jpn Wood Res Soc) 43:227-234
  14. Sasaki, Y., Iwata, T., Ando, K. 1998. Acoustoelastic effect of wood II. Effect of compressive stress on the velocity of ultrasonic longitudinal waves parallel to the transverse directionof the wood, Journal of Wood Science 44:21-27
  15. Sasaki, Y., Hasegawa, M., Iwata, T. 2000. Acoustoelastic stress measurement of wood in bending, Holz als Roh- und Werkstoff, (accepted for publication)
  16. Toda, H. 1993a.  Measurement of ultrasonic velocity in solids (in Japanese), Journal of the Japan Welding Research Society 62:419-424
  17. Toda, H. 1993b. High accurate measurement of ultrasonic velocity (in Japanese), In: Fukuoka H (Ed) Fundamentals and applications of acoustoelasticity. OHM-Sha, Tokyo, pp. 33-37, 45-47, 100-104
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