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The dispersion and reflection characteristics of coupled waves in the piezomagnetic solid with flexomagnetic microstructure effect

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Abstract

The dispersion and reflection characteristics of coupled waves in the piezomagnetic solid with flexomagnetic microstructure effect are studied in this paper. The flexomagnetic effect, strain gradient effect and micro-inertia effect are introduced into the constitutive equation and the governing equation to establish the wave propagation theory in the piezomagnetic solid with flexomagnetic microstructure effect. The secular equation of wave propagation is derived, and the properties of five coupled waves are analyzed. The dispersion characteristics of coupled waves and the reflection properties of coupled waves at the free boundary are solved numerically and checked by the energy conservation law. The influences of the flexomagnetic effect, strain gradient effect and micro-inertia effect on the wave propagation are discussed. It is found that the flexomagnetic effect mainly enhances the mechanical-magnetic coupled property, strain gradient effect mainly enhances the elastic property, and micro-inertia effect not only enhances the inertia property, but also essentially changes the dispersion characteristics of coupled waves.

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Acknowledgements

The authors wish to acknowledge the financial support by the National Natural Science Foundation of China (Grant Nos.52008152 and 12101177) and Natural Science Foundation of Hebei Province of China (Grant Nos.E2021202087 and A2021202001).

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No funding was received for conducting this study.

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Authors and Affiliations

  1. School of Civil Engineering, Tianjin Chengjian University, Tianjin, 300384, People’s Republic of China

    Fengyu Jiao, Zhongxian Liu & Jinghong Liu

  2. Tianjin Key Laboratory of Soft Soil Characteristics and Engineering Environment, Tianjin Chengjian University, Tianjin, 300384, People’s Republic of China

    Fengyu Jiao, Zhongxian Liu & Jinghong Liu

  3. School of Science, Hebei University of Technology, Tianjin, 300401, People’s Republic of China

    Mingyang Pan

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  1. Fengyu Jiao
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  2. Zhongxian Liu
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Correspondence to Fengyu Jiao.

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Jiao, F., Liu, Z., Liu, J. et al. The dispersion and reflection characteristics of coupled waves in the piezomagnetic solid with flexomagnetic microstructure effect. Acta Mech (2024). https://doi.org/10.1007/s00707-024-03940-z

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  • DOI: https://doi.org/10.1007/s00707-024-03940-z

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