Xiao-Le Cui

Bio: Xiao-Le Cui is an academic researcher from China Jiliang University. The author has contributed to research in topics: Coupling & Magnetostriction. The author has an hindex of 1, co-authored 1 publications receiving 17 citations.

A theoretical study of the nonlinear thermo-magneto-electric coupling effect in magnetoelectric laminates

Abstract: For the tri-layer symmetric magnetoelectric (ME) laminates made of giant magnetostrictive materials and piezoelectric materials, we established a theoretical model for the nonlinear thermo-magneto-electric coupling effect in laminates. This model was nonlinear and calculated in an iterative approach. It adopted the nonlinear magneto-thermo-mechanical magnetostrictive constitutive and the linear mechanical-thermo-electric piezoelectric constitutive and introduced the interface coupling factor to describe the strain transfer efficiency between layers. The predictions of ME coefficient versus temperature curves coincide well with experiments qualitatively and quantitatively. This model then was adopted to predict the influences of the temperature, interface coupling factor and thermal expansion coefficient of the giant magnetostrictive materials on ME coupling. It showed that: the laminates had the strongest ME effect at 0 °C; increasing the coupling factor would contribute to obtaining a larger ME coupling in a smaller bias magnetic field and lowering the ME effect attenuation caused by temperature variations; a smaller thermal expansion coefficient was also conducive to obtaining a larger ME coupling in a smaller bias magnetic field and decreasing the ME effect attenuation caused by temperature variations. This model can provide a theoretical basis for the preparation and application of ME devices under different temperature conditions.

Effect of thermo-magneto-electro-mechanical fields on the bending behaviors of a three-layered nanoplate based on sinusoidal shear-deformation plate theory:

Abstract: The nonlocal thermo-magneto-electro-mechanical bending behaviors of a three-layered nanoplate are presented in this study. The three-layered nanoplate includes a nano-sheet and two piezo-magnetic f...

A two-dimensional model for magnetic-field-direction dependent magnetoelectric effect in laminated composites

Abstract: Experiments have shown that the direction of magnetic field plays an important role in magnetoelectric (ME) effect in laminated composites. In this paper, based on the average field method, a two-dimensional magnetic-field-direction dependent ME model is introduced. The numerical results were compared with previous experimental data with excellent correlation. Especially, the existence of an optimal angle is theoretically proved, which is changed with the value of DC magnetic field and can drive ME response to the best. Meanwhile, we found that the optimal magnetic field presents an obvious nonlinear variation with the angle. The prediction is closer to the experimental data than that given in previous work. Furthermore, the predictions show that the resonance magnetoelectric effect has the same trend with that at low frequency. ME coefficients are increased by about 100 times at resonance frequency.