TY - JOUR
T1 - A general magneto-electro-elastic 3D FE model for free vibration and dynamic responses of multiphase composites
AU - Gong, Zheng
AU - Zhang, Yinxiao
AU - Du, Chunlin
AU - Pan, Ernian
AU - Zhang, Chao
N1 - Publisher Copyright:
© 2025 Elsevier Ltd
PY - 2025/8
Y1 - 2025/8
N2 - The fully coupled magneto-electro-elastic (MEE) properties of MEE composites complicate the prediction of their behavior in practical applications, particularly for three-dimensional (3D) vibration and dynamic responses. This paper introduces a generalized 3D MEE finite element model developed via secondary development in COMSOL. It allows users to obtain accurate results without finite element programming skills, significantly simplifying the complexity in the modeling of MEE materials. The accuracy of the proposed model in predicting natural frequency, modes, dynamic response, and stress wave propagation is first validated against exact solutions. Then, the model is employed to investigate the impacts of functional gradients, structural dimensions, perforated plate, damping, and pre-stress on the vibration characteristics and dynamic behavior of MEE composites. An empirical formula is further developed to precisely predict the fundamental frequency in MEE sandwich plates with varying stacking sequences and dimensions. For MEE sandwiches composed of piezoelectric (BaTiO3) and magnetostrictive (CoFe2O4) materials with different stacking sequences, interesting novel features are observed, including the effect of piezomagnetic/piezoelectric stiffening, the influence of the geometry on the vibration and propagation of stress waves in the MEE structure. These findings offer valuable insights for the design of high-performance multiphase composites.
AB - The fully coupled magneto-electro-elastic (MEE) properties of MEE composites complicate the prediction of their behavior in practical applications, particularly for three-dimensional (3D) vibration and dynamic responses. This paper introduces a generalized 3D MEE finite element model developed via secondary development in COMSOL. It allows users to obtain accurate results without finite element programming skills, significantly simplifying the complexity in the modeling of MEE materials. The accuracy of the proposed model in predicting natural frequency, modes, dynamic response, and stress wave propagation is first validated against exact solutions. Then, the model is employed to investigate the impacts of functional gradients, structural dimensions, perforated plate, damping, and pre-stress on the vibration characteristics and dynamic behavior of MEE composites. An empirical formula is further developed to precisely predict the fundamental frequency in MEE sandwich plates with varying stacking sequences and dimensions. For MEE sandwiches composed of piezoelectric (BaTiO3) and magnetostrictive (CoFe2O4) materials with different stacking sequences, interesting novel features are observed, including the effect of piezomagnetic/piezoelectric stiffening, the influence of the geometry on the vibration and propagation of stress waves in the MEE structure. These findings offer valuable insights for the design of high-performance multiphase composites.
KW - Dynamic responses
KW - Finite element model
KW - Free vibration
KW - Magneto-electro-elastic materials
KW - Three-dimension
UR - https://www.scopus.com/pages/publications/105001733666
U2 - 10.1016/j.tws.2025.113242
DO - 10.1016/j.tws.2025.113242
M3 - 文章
AN - SCOPUS:105001733666
SN - 0263-8231
VL - 213
JO - Thin-Walled Structures
JF - Thin-Walled Structures
M1 - 113242
ER -