Experimental researches on magneto-thermo-mechanical characterization of Terfenol-D

Liang, Yi-Rui; Zheng, Xiaojing

doi:10.1007/s10338-007-0733-x

Cited by 50 publications

(35 citation statements)

References 9 publications

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“…It can seen from Fig. 1, the predictions of magnetostrictive strain curves under different compressive pre-stresses coincide well with Liang's experimental results 8 qualitatively and quantitatively not only in the region of low and moderate magnetic field but also in the region of high field. Meanwhile, it also can be found that magnetostrictive strain increases with increasing magnetic field under a given compressive pre-stress; the magnetostrictive strain decreases with the increase of compressive pre-stress in the region of low bias field; while a larger compressive pre-stress can achieve a greater magnetostrictive strain of Terfenol-D when the magnetic field is high enough to achieve saturation magnetization.…”

Section: Quantitative Discussionsupporting

confidence: 75%

“…First, magnetostrictive strain curves measured by Liang et al 8 under different compressive pre-stresses are selected due to the completeness and clarity of the results. Since the concrete material parameters are not provided in the experiment of Liang et al, 8 the optimal parameters are selected as λ s = 1600ppm, µ 0 M s = 1.15T, χ m = 35, σ λ = 150MPa. At this basis, the comparison between the predicted magnetostrictive strain by this constitutive model and the experimental result is shown in Fig.…”

Section: Quantitative Discussionmentioning

confidence: 99%

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A general one-dimension nonlinear magneto-elastic coupled constitutive model for magnetostrictive materials

Zhang

Zhou

2015

AIP Advances

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For magnetostrictive rods under combined axial pre-stress and magnetic field, a general one-dimension nonlinear magneto-elastic coupled constitutive model was built in this paper. First, the elastic Gibbs free energy was expanded into polynomial, and the relationship between stress and strain and the relationship between magnetization and magnetic field with the polynomial form were obtained with the help of thermodynamic relations. Then according to microscopic magneto-elastic coupling mechanism and some physical facts of magnetostrictive materials, a nonlinear magneto-elastic constitutive with concise form was obtained when the relations of nonlinear strain and magnetization in the polynomial constitutive were instead with transcendental functions. The comparisons between the prediction and the experimental data of different magnetostrictive materials, such as Terfenol-D, Metglas and Ni showed that the predicted magnetostrictive strain and magnetization curves were consistent with experimental results under different pre-stresses whether in the region of low and moderate field or high field. Moreover, the model can fully reflect the nonlinear magnetomechanical coupling characteristics between magnetic, magnetostriction and elasticity, and it can effectively predict the changes of material parameters with pre-stress and bias field, which is useful in practical applications. C 2015 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License. [http://dx

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Section: Quantitative Discussionsupporting

confidence: 75%

Section: Quantitative Discussionmentioning

confidence: 99%

A general one-dimension nonlinear magneto-elastic coupled constitutive model for magnetostrictive materials

Zhang

Zhou

2015

AIP Advances

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“…Most of the time, the temperature is induced by chambers (5) or electrical heating (6) , which makes it necessary to develop new experimental apparatus to provide reliable and high magnetic, stress and temperature fields at the same time. The lack of systematical multi-field experimental results is also an obstacle to magneto-thermo-mechanical theoretical works (7) (8) .…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Magneto-thermo-mechanical Behaviors of Terfenol-D

Pei

Fang

2010

JMMP

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Magnetostrictive materials have been widely used in sensors, actuators and transducers for decades. However, their applications are limited by the nonlinear response to both the prestress and the environment temperature. In that case, systematical study on magneto-thermo-mechanical behaviors of magnetostrictive materials is needed. In this paper, a new magneto-thermo-mechanical experimental apparatus is developed by adding circulating oil bath system to our magneto-mechanical device. Magnetization and magnetostriction processes of Terfenol-D under different temperatures and prestresses are investigated. Strong magneto-thermo-mechanical coupling of giant magnetostrictive materials is shown and discussed. Magnetization process is depressed with the increase of both prestress and temperature, while low-field magnetization and magnetostriction are not sensitive to temperature. The results are of importance to theoretical analysis and industrial applications.

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“…[20][21][22][23] However, the nonlinear constitutive model of magnetostrictive phase is complex and not intuitive for building an equivalent circuit model, so it is replaced by the magnetostrictive constitutive model with variable coefficients in this paper. Without regard to the thermal expansion effect, the constitutive equations are expressed as:…”

Section: The Establishment Of Modelmentioning

confidence: 99%

“…Now, many researchers dedicate to improving the linearity of the CME effect. 19 However, the magnetization and magnetostriction of the ferromagnetic materials show the strong nonlinear thermo-magneto-mechanical coupling characteristic [20][21][22][23] under the influences of bias magnetic field, pre-stress and temperature, which lead to the CME effect and the electric field controlled magnetization effect possessing the strong nonlinear coupling effects essentially. Thus, to carry out a research about the nonlinear converse magnetoelectric coupling effect under the multi-physical field loadings is very urgent and necessary.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear resonance converse magnetoelectric effect modulated by voltage for the symmetrical magnetoelectric laminates under magnetic and thermal loadings

et al. 2016

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Based on the tri-layer symmetrical magnetoelectric laminates, a equivalent circuit for the nonlinear resonance converse magnetoelectric coupling effect is established. Because the nonlinear thermo-magneto-mechanical constitutive equations of magnetostrictive material were introduced, a converse magnetoelectric coefficient model was derived from the equivalent circuit, which can describe the influence of bias electric field, bias magnetic field and ambient temperature on the resonance converse magnetoelectric coupling effect. Especially, the model can well predict the modulation effect of bias electric field/voltage on the magnetism of magnetoelectric composite or the converse magnetoelectric coefficient, which is absolutely vital in applications. Both of the converse magnetoelectric coefficient and the resonance frequency predicted by the model have good agreements with the existing experimental results in qualitatively and quantitatively, and the validity of the model is confirmed. On this basis, according to the model, the nonlinear trends of the resonance converse magnetoelectric effect under different bias voltages, bias magnetic fields and ambient temperatures are predicted. From the results, it can be found that the bias voltage can effectively modulate the curve of the resonance converse magnetoelectric coefficient versus bias magnetic field, and then change the corresponding optimal bias magnetic field of the maximum converse magnetoelectric coefficient; with the increasing volume ratio of piezoelectric layers, the modulation effect of bias voltage becomes more obvious; under different bias magnetic fields, the modulation effect of bias voltage on the converse magnetoelectric effect has nonvolatility in a wide temperature region.

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Experimental researches on magneto-thermo-mechanical characterization of Terfenol-D

Cited by 50 publications

References 9 publications

A general one-dimension nonlinear magneto-elastic coupled constitutive model for magnetostrictive materials

A general one-dimension nonlinear magneto-elastic coupled constitutive model for magnetostrictive materials

Experimental Study on Magneto-thermo-mechanical Behaviors of Terfenol-D

Nonlinear resonance converse magnetoelectric effect modulated by voltage for the symmetrical magnetoelectric laminates under magnetic and thermal loadings

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