Frequency response of a magnetostrictive wire-polymer composite

Sauviz P. Alaei; Thomas I. Richardson; E. Dan Dahlberg

doi:10.1063/5.0044563

Frequency response of a magnetostrictive wire-polymer composite

Sauviz P. Alaei, Thomas I. Richardson, E. Dan Dahlberg

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Abstract

The frequency-dependent magnetostriction of five samples of a ferromagnetic steel wire-polymer composite was investigated from 3 to 70 Hz. The volume fractions, or "loadings,"of steel wires in the samples were 0.02, 0.05, 0.07, 0.10, and 0.20. All samples exhibited a resonance at about 40 Hz, with damping and magnetostriction that generally increases with increased wire loading. A decrease in the overall magnetostriction of the 0.20 loading sample is attributed to mechanical blocking of the wire rotations in the polymer. The loading-dependent damping and an unexpected low-frequency behavior were explained by the time-dependent magnetic response of the wires.

Original language	English (US)
Article number	205105
Journal	Journal of Applied Physics
Volume	129
Issue number	20
DOIs	https://doi.org/10.1063/5.0044563
State	Published - May 28 2021
Externally published	Yes

Bibliographical note

Funding Information:
The authors thank Jason Cleveland and Peter Saulson for useful discussions. This work was supported by NSF (Grant No. DMR 1609782) and the University of Minnesota’s Undergraduate Research Opportunities Program.

Publisher Copyright:
© 2021 Author(s).

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Frequency response of a magnetostrictive wire-polymer composite

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