Experimental verification of the direct elastomagnetic effect

Issue title: Proceedings of the twelfth International Symposium on Interdisciplinary Electromagnetic, Mechanic and Biomedical Problems, ISEM Bad Gastein

Article type: Research Article

Authors: Hison, Cornelia^{a; *} | Ausanio, Giovanni^b | Iannotti, Vincenzo^b | Lanotte, Luciano^b | Breglio, Giovanni^c | Cusano, Andrea^d | Giordano, Michele^e

Affiliations: [a] Dipartimento di Ingegneria dei Materiali e della Produzione, Università "Federico II", P.le V. Tecchio 80, 80125 Napoli, Italy | [b] CRS-Coherentia CNR-INFM, Dipartimento di Scienze Fisiche, Università "Federico II", P.le V. Tecchio 80, 80125 Napoli, Italy | [c] Dipartimento di Ingegneria Elettronica e Telecomunicazioni, Università Federico II, via Claudio 21, 80125 Napoli, Italy | [d] Dipartimento di Ingegneria, Università del Sannio, corso Garibaldi, Benevento, Italy | [e] CNR – IMCB, P.le V. Tecchio 80, 80125 Napoli, Italy

Correspondence: [*] Corresponding author. Tel.: +39 081 7682421; Fax: +39 081 2391821; E-mail: [email protected]

Abstract: The deformation induced by a magnetic field in a composite material made of permanently magnetized Sm_{2}Co_{7} micro-particles uniformly dispersed into an elastomer matrix is directly evaluated using a Fiber Bragg-Grating (FBG) sensor. This experimental measurement permits to verify the previously developed model of the direct elastomagnetic effect. The good agreement between the experimental results and the theoretical predictions gives the deffinitive validation of the model of the direct elastomagnetic effect in composites made of magnetic micro-particles inside an elastomer matrix. This feature is fundamental for the development of deformation actuators based on these materials with peculiar elastomagnetic and mechanical performances.

Keywords: Direct elastomagnetic effect, elastomagnetic composite, Fiber Bragg-Grating (FBG) sensor, actuator core material

DOI: 10.3233/JAE-2007-893

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 25, no. 1-4, pp. 37-41, 2007