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Finite Element Formulation for Analysis of Unsymmetric Magnetoelectric Laminated Plates

机译:非对称磁电层合板分析的有限元公式

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Magnetoelectric (ME) materials have presented themselves appealing towards sensing and energy harvestingapplications. Comprehensive studies under linear and nonlinear material behavior have been performed onsymmetric ME laminates subjected to homogeneous deformations. However, studies on unsymmetric laminatesworking under bending action are sparse, despite their advantages like low resonant frequencies. A finite element(FE) model is thus developed in this work based on Mindlin plate theory to quantify the ME coupling under anapplied magnetic loading in quasi-static and resonant conditions. Due emphasis has been given to the materialnonlinearity of the ferromagnetic phase and the resulting ME coupling in bending and axial as well as torsionalmodes has been studied. The influence of the frequency of applied AC magnetic field, the magnitude of the biasfield and their orientation relative to the plate axes and the effect of plate width are explored for free-free andcantilever conditions. The developed model is also validated against data available in literature. The resultsillustrate that the cantilever configuration offers a two-fold advantage of high ME coupling and low resonantfrequency.
机译:磁电(ME)材料在感应和能量收集方面表现出吸引力 应用程序。在线性和非线性材料行为下进行了综合研究 对称的ME层压板经受均匀变形。但是,关于不对称层压板的研究 尽管它们具有共振频率低的优点,但在弯曲作用下的工作却很少。有限元 因此,根据Mindlin板理论在这项工作中开发了(FE)模型,以量化在一定条件下的ME耦合。 在准静态和共振条件下施加的磁性负载。已适当重视材料 铁磁相的非线性以及由此产生的在弯曲,轴向以及扭转中的ME耦合 模式已被研究。施加的交流磁场的频率,偏置幅度的影响 研究了自由场和自由场的场及其相对于板轴的方向以及板宽度的影响 悬臂条件。相对于文献中可用的数据,还验证了开发的模型。结果 说明了悬臂结构具有高ME耦合和低谐振的双重优势 频率。

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