A micromechanical model for the effective properties of two-phase magnetoelectric composites
A micromechanical model for the effective properties of two-phase magnetoelectric composites
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DOI：
10.1007/s00419-022-02195-1
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发表时间：
2022-06
影响因子：
2.8
通讯作者：
Jian Yang;Yueting Zhou
中科院分区：
文献类型：
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作者：
Jian Yang;Yueting Zhou
基于桥接理论，提出了预测两相磁电复合材料有效系数的微力学模型。在分析已有经典微力学模型结果的基础上，将有效弹性系数、压电系数、压磁系数、介电系数、磁导率系数和磁电耦合系数等17种不同系数分为两组。给出了两组分的应变场、电场和磁场之间的关系。计算结果与有限元计算结果吻合较好。本文提出的统一细观力学模型可以灵活地覆盖磁电复合材料有效系数的经典预测模型。
A micromechanical model based on the bridging theory is proposed for predicting the effective coefficients of two-phase magnetoelectric composites. The 17 different coefficients, including the effective elastic, piezoelectric, piezomagnetic, dielectric, magnetic permeability and magnetoelectric coupling coefficients, are divided into two groups based on the analysis of existing results of the classical micromechanical models. The relationship between the strain field, electric field and the magnetic field of two constituents is presented. The results are well matched with the finite element results. The classical models for predicting the effective coefficients of magnetoelectric composites can be covered flexibly by the presented unified micromechanical model.