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Bending of Iron-Gallium (Galfenol) Alloys for Sensor Applications

Published online by Cambridge University Press:  01 February 2011

Patrick R. Downey  and
Alison B. Flatau
Patrick R. Downey
Affiliation:
[email protected], University of Maryland, 3181 Martin Hall, College Park, Maryland, 20742, United States
Alison B. Flatau
Affiliation:
[email protected], University of Maryland, Aerospace Engineering, United States
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Abstract

This project investigates the magnetomechanical sensing behavior of iron-gallium alloys in response to applied bending loads to identify the relevant design criteria for novel magnetostrictive sensor applications. A series of experiments are conducted on the magnetic induction response of cantilevered beams to dynamic bending loads. Analytic models of the system are formulated from both the constitutive magnetostriction equations and a free energy derivation. Both the experimental and analytical results show a change of as much as 0.3 T of induction can be measured in the samples in response to relatively small applied forces, with the output magnetic signal appearing at twice the frequency of beam vibration.

Keywords

sensorferromagneticelastic properties
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 888: Symposium V – Materials and Devices for Smart Systems II , 2005 , 0888-V06-11
Copyright
Copyright © Materials Research Society 2006

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References

REFERENCES

1. Kellogg, R. A., Ph.D. thesis, Engineering Mechanics, Iowa State University, Ames, IA, (2003). http://www.aero.umd.edu/~aflatau/TechPubs/Kellogg_2003_Dissertation.pdf Google Scholar
2. Clark, A. E., Restorff, J. B., Wun-Fogle, M., Lograsso, T. A., and Schalgel, D. L., IEEE Trans. Magn. 36, 3238–3240 (2000).Google Scholar
3. Atulasimha, J., Flatau, A. B., Chopra, I., and Kellogg, R. A., Proc. SPIE: Smart Materials and Structures 5387, 487–497 (2004).Google Scholar
4. Slaughter, J., Raim, J., Wun-Fogle, M., Restorff, J., and Clark, A., Proc. SPIE: Smart Materials and Structures 5761, 183–191 (2005).Google Scholar
5. Twarek, L., Flatau, A., Proc. SPIE: Smart Materials and Structures 5761, 209–220 (2005).Google Scholar
6. Na, S-M., Flatau, A. B., Proc. SPIE: Smart Materials and Structures 5761, 192–199 (2005).Google Scholar
7. Wun-Fogle, M., Restorff, J., Clark, A., Dreyer, E., and Summers, E., presented at the 2nd Annual Galfenol Workshop, University of Maryland (2005).Google Scholar
8. Stadler, B. J., presented at the 2nd Annual Galfenol Workshop, University of Maryland (2005).Google Scholar
9. Mcgary, P. D., Stadler, B. J., J. Apply. Phys. 97, 10R503 (2005).Google Scholar
10. McGary, P. D., Tan, L., Zou, J., Stadler, B. J., Downey, P. R., and Flatau, A. B., J. Appl. Phys. (2006) (in print).Google Scholar
11. Downey, P. R., Flatau, A. B., J. Appl. Phys. 97, 10R505 (2005).Google Scholar
12. Downey, P. R., Flatau, A. B., Proc. SPIE: Smart Materials and Structures 5764, 120–129 (2005).Google Scholar
13. Datta, S., Flatau, A. B., Proc. SPIE: Smart Materials and Structures 5764, 100–110 (2005).Google Scholar
14. Downey, P. R., Flatau, A. B., presented at the U.S. Navy Workshop on Acoustic Transduction Materials and Devices, Penn State University (2005).Google Scholar