Abstract
Ultrasonic inspection is used to confirm that there are no defects of concern in various regions of a nuclear reactor primary circuit. All materials are naturally anisotropic, but if the grains are small relative to the ultrasonic wavelength and are also randomly oriented, then the material will appear as homogeneous and isotropic as in ferritic steel. The ultrasonic wavelength is chosen as a compromise between resolution of defect size and acoustic noise from grain boundaries. In austenitic steel, the wavelength chosen will typically be smaller than the grain size, at least in one direction. The grains are not randomly oriented but exhibit macroscopic patterns which depend on the welding process, and the material is neither homogeneous nor isotropic.
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
D.S. Kuperman and K.J. Reiman, Ultrasonics, 16(1), 21–27, (1978)
J.L. Synge, J.Math. Phys. 35, 323–334, (1956).
F.I. Fedorov, Theory of elastic waves in crystals, (Plenum, New York, 1968).
F. Champigny, B. Nouilhas, Private communication.
V.T. Buchwald, Proc. Roy. Soc. A253, 563–580, (1959).
Z. You, M. Lusk, R. Ludwig and W. Lord, IEEE Trans. Ultrasonics Ferroelectrics and Frequency Control, 38(5), 436–445, (1991).
J.D. Achenbach, A.K. Gautesen and H. McMaken, Ray Methods for Waves in Elastic Solids, (Pitman, London, 1982).
M.J.P. Musgrave, Proc. Roy Soc. A226, 339–355, (1954).
M.J.P. Musgrave, Proc. Roy Soc. A226, 356–366, (1954).
M.J.P. Musgrave, Reports on Progr. in Physics 22, 75–79, (1959).
A.N. Norris, and J.D. Achenbach, in Review of Progress in Quantitative Non Destructive Evaluation, Edited by D.O. Thompson and D.E. Chimenti, Vol 3A, (Plenum, New York, 1984), ppl33–141.
A.N. Norris, and J.D. Achenbach, Q.J. Mech. Appl. Math. 37, 565–580, (1984).
J.A.G. Temple and L. White, in Review of Progress in Quantitative Non Destructive Evaluation, Edited by D.O. Thompson and D.E. Chimenti, (Plenum, New York Vol 12, 1993), pp49–54.
G.R. Wickham, P.A. Lewis and E. Walker, Proc. Roy. Soc. to be published (1995).
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1996 Plenum Press, New York
About this chapter
Cite this chapter
Lewis, P.A., Temple, J.A.G., Wickham, G.R. (1996). Elastic Wave Diffraction at Cracks in Anisotropic Materials. In: Thompson, D.O., Chimenti, D.E. (eds) Review of Progress in Quantitative Nondestructive Evaluation. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-0383-1_5
Download citation
DOI: https://doi.org/10.1007/978-1-4613-0383-1_5
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4613-8027-6
Online ISBN: 978-1-4613-0383-1
eBook Packages: Springer Book Archive