Hostname: page-component-586b7cd67f-t7fkt Total loading time: 0 Render date: 2024-11-29T07:51:32.283Z Has data issue: false hasContentIssue false
  • English
  • Français

Dynamic Shear Characterization in a Magnetostrictive Rare Earth - Iron Alloy

Published online by Cambridge University Press:  16 February 2011

Philippe Bouchilloux ,
Nicolas Lhermet  and
Frank Claeyssen
Philippe Bouchilloux
Affiliation:
Now at Magsoft Corp., 1223 Peoples Ave., Troy, NY 12180
Nicolas Lhermet
Affiliation:
Cedrat Recherche, 10 Chemin du Pré Carré, ZIRST 4301, 38943 Meylan, France
Frank Claeyssen
Affiliation:
Cedrat Recherche, 10 Chemin du Pré Carré, ZIRST 4301, 38943 Meylan, France
Get access

Abstract

A previous study about the power limits of the magnetostrictive alloy called Terfenol-D, using a device biased by coils, showed the intrinsic superiority of this material compared to piezoelectric ceramics when used in high power sonar transducers. This fact was confirmed by another study where giant dynamic peak-to-peak deformations of 3500 ppm were measured with a transducer biased by permanent magnets.

Experience shows that the longitudinal functioning of magnetostrictive transducers is sometimes disrupted by interference caused by ‘flexure’ in the magnetostrictive rods. In fact, due to the shape of the rods, the flexure effects are strongly coupled to shear. Characterization of shear in Terfenol-D under conditions of magnetic bias and prestress is then necessary to control those effects. This was made possible by using a simple and original device that was designed totally with Computer Aided Design programs.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 360 , 1994 , 265
Copyright
Copyright © Materials Research Society 1995

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

[1]De Lachesserie, E., Magnetostriction: Theory and Applications, Ed. CRC Press, USA, 1993, p. 410.Google Scholar
[2]Clark, A. E., Magnetostrictive Rare Earth-Fe2 Compounds, Ferromagnetic Materials, Ed. Wohl-Farth, E.P.(US), Tome 1, 1980, pp. 531–588.Google Scholar
[3]Claeyssen, F., Giant Dynamic Magnetostrain in Rare Earth-Iron Magnetostrictive Materials, IEEE Trans. MAG. 27, No. 6, Nov. 1991, pp. 5343–5345.Google Scholar
[4]Claeyssen, F., Progress in Magnetostrictive Sonar Transducers, Proc. UDT93, Ed. Exhib, Reed. (UK), 1993, pp. 246–250.Google Scholar
[5]Claeyssen, F., State of the Art in the Field of Magnetostrictive Actuators, Proc. ACTUATOR 94 conf, Ed. Axon, , Bremen (G), 1994, pp. 203–208.Google Scholar
[6]Moffett, M.B., Characterization of Terfenol-D for Magnetostrictive Transducers, JASA, 89 (3), 1991, pp. 1448–1455.Google Scholar
[7]Claeyssen, F., Design and Building of Low-Frequency Sonar Transducers Based on Rare Earth-Iron Magnetostrictive Alloys. Doct. Thesis, INSA de Lyon (F), No. 89 ISAL 0065, Ed. Defence Research Inform. Cent. (HSMO, MoD, London) 1989, p. 414.Google Scholar
[8] FLUX2D/3D, Finite Element Programs for 2D/3D Magnetic and Electric Field Analysis, LEG, Grenoble (F).Google Scholar
[9] ATILA, 3D Finite Element Code For Piezoelectric and Magnetostrictive Transducers, ISEN, Lille (F).Google Scholar
[10]Blevins, R. D. Formulas for Natural Frequency Mode Shape. PhD Thesis.Van Nostrand Reinhold Company. Litton Educational Publishing, Inc. 1979.Google Scholar
[11]Savage, H. T., Abbundi, R, Perpendicular Susceptibility, Magnetomechanical Coupling and Shear Modulus in Tb27Dy23Fe2, IEEE Transactions on Magnetics, 1978, vol. Mag-14, no. 5, pp. 545–547.Google Scholar