Micromechanics of magnetoelectroelastic composite materials: Average fields and effective behavior
Micromechanics of magnetoelectroelastic composite materials: Average fields and effective behavior
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DOI：
10.1177/1045389x9800900602
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发表时间：
1998-06-01
影响因子：
2.7
通讯作者：
Dunn, ML
中科院分区：
文献类型：
--
作者：
Li, JY;Dunn, ML
本文提出了一种细观力学方法来分析非均匀介质的平均场和有效模量。电场和磁场首先建立了非均匀磁电弹性固体内部场分布的精确关系，然后建立了两相复合材料的有效磁电弹性模量与热模量之间的精确联系。然后应用Mori-Tanaka平均场方法获得纤维和层合复合材料有效模量的封闭形式表达式。最后，对BaTiO_3-CoFe_2 O_4复合材料的数值结果进行了讨论。
A micromechanics approach is developed to analyze the average fields and effective moduli of heterogeneous media that exhibit full coupling between stationary elastic. electric, and magnetic fields. Exact relations regarding the internal field distribution inside a heterogeneous magnetoelectroelastic solid are first established, followed bq exact connections between the effective magnetoelectroelastic and thermal moduli of two-phase composites. The Mori-Tanaka mean field approach is then applied to obtain closed form expressions for the effective moduli of fibrous and laminated composites. Finally, numerical results for BaTiO3-CoFe2O4 composites are presented and discussed.