期刊
MATERIALS
卷 14, 期 18, 页码 -出版社
MDPI
DOI: 10.3390/ma14185165
关键词
magnetostriction; magnetisation; smart materials; multiaxial stress
This paper presents a comprehensive characterization of the anhysteretic magneto-mechanical behavior of Terfenol-D, using an energy-based multiscale approach to model this behavior. It is demonstrated that the strain behavior of Terfenol-D can be satisfactorily described using an analytical model derived from the full multiscale approach.
Giant magnetostrictive materials such as Terfenol-D and Galfenol are used to design actuators and sensors, converting magnetic input into a mechanical response, or conversely, mechanical input into a magnetic signal. Under standard operating conditions, these materials are subjected to stress. It is therefore important to be able to measure, understand and describe their magneto-mechanical behaviour under stress. In this paper, a comprehensive characterisation of the anhysteretic magneto-mechanical behaviour of Terfenol-D was performed. An energy-based multiscale approach was applied to model this behaviour. Finally, it was shown that the strain behaviour of Terfenol-D can be satisfactorily described using an analytical model derived from the full multiscale approach.
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