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|  | | 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。 | |
The anti-plane deformation problem of an interfacial debounding crack between a circular piezoelectric inclusion and a piezoelectric matrix is investigated by means of the complex variables method.
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Scattering of SH Waves by an Arc-Shaped Crack between a Cylindrical Piezoelectric Inclusion and Matrix-II: Far Fields
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| | The effective properties of piezoelectric composite materials are very important in engineering. In this paper, the closed_form solutions of the constraint_strain and the constraint_electric_field of a transversely isotropic spherical inclusion in an infinite non_piezoelectric matrix are obtained. The dilute solutions of piezoelectric composite materials with transversely isotropic spherical inclusions are also given. The solutions in the paper can be readily utilized in analysis and design of piezoelectric... | | 压电复合材料的有效性质是一个十分重要的问题·在分析了一无限大均匀线性非压电介质中含有一个横观各向同性球形压电夹杂问题的基础上,导出了夹杂内的约束应变场和约束电场的解析表达式,进而得到了含横观各向同性球形压电夹杂的压电复合材料的有效电弹模量的稀疏解·本文结果可以用于压电复合材料或智能材料和智能结构的设计与分析· | | 文摘来源 | | As supplement and perfection to Ru's most recent research effort, the interface cracks between embedded compliant electrode layer and anisotropic piezoelectric ceramic matrix is strictly analyzed in this paper. It is demonstrated that contrary to Ru's statement, an exact elementary solution to this interface crack problem can still be obtained when the bimaterials are general anisotropic piezoelectric ceramics. The analyses show that the electroelastic fields on the interface exhibit two kinds of singularit... | | 首先解析研究了压电多层材料中的电极-陶瓷界面裂纹,它是对Ru最近研究工作(见ASMB J·APPI.Mech.,2000年,67卷)的补充和完善.工作表明与 Ru的结论不同,对于一般的两相压电介质,仍可获得对于这种电极-陶瓷界面裂纹的精确解答.分析显示在界面处的电弹性场仍可显现出两类奇异性:振荡型奇异性一1/2土iε。和实指数型奇异性一1/2士 k,其中ε和k 由上下两相压电材料的本构常数加以确定.获得了界面电弹性场以及裂尖处能量释放率的显式和实形式解答.也讨论了在坐标变换下界面上物理量的一些不变性质.其次探讨了压电多层材料中的椭圆夹杂问题,并获得了当压电复合系统受到远场均布机电载荷时的通解.分析表明当压电基体受到远场均布机电载荷作用时,应力场和电场在压电夹杂体上仍然均匀分布井且整个夹杂体都为等电势体 | | 文摘来源 | | In this paper, an analytical solution in series form for the problem of double circular cylindrical piezoelectric inclusions embedded in an infinite piezomagnetic matrix is presented. The matrix is subjected to remote magneto-electro-mechanical loading. The solution of complex potentials is obtained by applying complex conformal mapping, analytical continuation, Laurent's series expansion in an annular ring region and Cauchy integal formulae, etc. Based on the obtained complex potentials, explicit expressio... | | 研究了双圆柱压电夹杂嵌于无限大压磁基体中的力学问题,获得了基体受到无穷远处电、磁、力载荷作用下的解析解。利用复变函数保角变换和解析延拓,以及圆环域内的洛朗级数展开和Cauchy积分公式等得到了基体和两个夹杂中的复位势。由所获得的复位势继而得到了应力、电位移和磁通密度等物理量的解析表达式。并给出了算例分析,以此来表明夹杂对系统电磁弹性耦合行为的影响,以及验证所得解的正确性和实用性。 | | 文摘来源 | |   | | << 更多相关文摘 |
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