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Nonlinear bending
response of giant magnetostrictive laminated actuators in
magnetic fields
Yasuhide Shindo, Fumio Narita, Kotaro Mori and Tasuku Nakamura |
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Vol. 4 (2009), No. 5, 941–949
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Abstract |
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We report numerical and experimental investigations into the nonlinear bending behavior of magnetostrictive laminated actuators under magnetic fields. Magnetostrictive actuators were fabricated from thin layers of Terfenol-D and metal, and the magnetostriction of the devices was measured. A nonlinear finite element analysis was employed to evaluate the contribution of magnetic domain switching to the second-order magnetoelastic constants in the Terfenol-D layer. The effect of a magnetic field on the nonlinear deflection and internal stress of magnetostrictive laminated actuators is discussed. |
Keywords
finite element method, material testing, giant
magnetostrictive material, nonlinear bending
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Milestones
Received: 8 April 2008
Revised: 2 December 2008
Accepted: 17 May 2009
Published: 5 September 2009
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Authors |
| Yasuhide Shindo | |
| Tohoku University Department of Materials Processing Graduate School of Engineering Aoba-ku, Sendai 980-8579 Japan |
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| Fumio Narita | |
| Tohoku University Department of Materials Processing Graduate School of Engineering Aoba-ku, Sendai 980-8579 Japan |
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| Kotaro Mori | |
| Tohoku University Department of Materials Processing Graduate School of Engineering Aoba-ku, Sendai 980-8579 Japan |
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| Tasuku Nakamura | |
| Tohoku University Department of Materials Processing Graduate School of Engineering Aoba-ku, Sendai 980-8579 Japan |
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