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Coupled Magneto-mechanical Modeling of Composites Containing Aligned Ferromagnetic Particles

Published online by Cambridge University Press:  01 February 2011

Huiming Yin  and
Lizhi Sun
Huiming Yin
Affiliation:
Department of Civil and Environmental Engineering, The University of Iowa, Iowa City, IA 52242–1527
Lizhi Sun
Affiliation:
Department of Civil and Environmental Engineering, The University of Iowa, Iowa City, IA 52242–1527
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Abstract

The objective of this paper is to investigate effective magneto-mechanical behavior of composites containing aligned ferromagnetic particles. The effective magneto-elastic properties and the overall magnetostriction of the composites are derived by considering the pair-wise interaction between ferromagnetic particles. For the composites with soft elastomer matrix, the microstructural configuration rapidly changes with the magnetic and mechanical loads so that the local magnetic and elastic fields are fully coupled. This model accounts for the coupled magneto-elastic interaction and pair-wise interaction between particles. The results show that the Young's modulus along the particle-chain direction is reduced and the shear modulus is increased under the applied magnetic field. Predictions from the proposed model are compared with available experimental data and other models.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 785: Symposium D – Materials and Devices for Smart Systems , 2003 , D13.7
Copyright
Copyright © Materials Research Society 2004

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References

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