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1)  functionally graded magneto-electro-elastic materials
功能梯度压电压磁材料
1.
In this paper,the mode Ⅲ crack problem of a functionally graded magneto-electro-elastic strip bonded to a half infinite functionally graded magneto-electro-elastic materials is investigated.
利用奇异积分方程方法研究了一个含裂纹的功能梯度压电压磁条与半无限大功能梯度压电压磁材料粘结在非渗透边界条件下的Ⅲ型裂纹问题。
2)  functionally graded piezoelectric/piezomagnetic materials
功能梯度压电/压磁材料
1.
In this paper,the behavior of a crack in functionally graded piezoelectric/piezomagnetic materialssubjected to an anti-plane shear loading is investigated.
分析了功能梯度压电/压磁材料中裂纹在反平面剪切载荷下的断裂问题。
3)  functionally graded magneto-electro-elastic material
功能梯度压电压磁材料(FGMM)
4)  functionally graded piezoelectric material
功能梯度压电材料
1.
Anti-plane moving Yoffe-crack problem for an infinite functionally graded piezoelectric materials;
无限大功能梯度压电材料中反平面Yoffe型运动裂纹
2.
Crack problem for a functionally graded piezoelectric strip bonded to a functionally graded piezoelectric material;
功能梯度压电带粘接功能梯度压电材料裂纹问题
3.
Using variational principle, constitutive relations and geometrical relations of functionally graded piezoelectric material, and the boundary conditions of the plates, the finite element equations were deducted.
本文利用变分原理和功能梯度压电材料的本构关系、几何关系、板的边界条件等,推导出功能梯度板的有限元方程。
5)  piezoelectric functionally gradient materials
压电功能梯度材料
1.
Based on the gradient model that the properties of them obey a power law with respect to the thickness of piezoelectric functionally gradient materials,a modified factor representing the error between design and implement is introduced.
基于压电功能梯度材料物性参数沿厚度为幂函数变化的梯度模型,引入反映设计与实现间误差的修正因子,分析中采用含压电耦合项的修正层合理论,将压电功能梯度板分为厚度足够小的若干薄层,从而可近似地认为每层的材料特性为均匀的。
6)  functionally graded piezoelectric materials
功能梯度压电材料
1.
Anti-plane moving Yoffe-crack problem in functionally graded piezoelectric materials;
半无限大功能梯度压电材料中反平面Yoffe型运动裂纹
2.
In the first part, the historical development and the basic equations of functionally graded piezoelectric materials are briefly introduced.
本文共分五部分: 第一部分简要介绍功能梯度压电材料中动态裂纹问题的发展历史、研究现状、电弹性动态控制方程及本文研究的主要内容。
补充资料:压电功能复合材料
分子式:
CAS号:

性质:以橡胶、环氧树脂、压电高分子材料(如PVDF)为基体材料,锆钛酸铅(PZT)、钛酸铅、偏铌酸铅等压电陶瓷粉末为功能体复合而成,具有压电性质的复合材料。与单质压电材料相比较,压电复合材料具有许多优良性能,它具有更高的水声换能优值q(q=dhgh),能制作更灵敏的主动声纳和水听器,PZT的q值约为200×10-15m2/N,最好的单质材料PbNb2O6的q值也仅为2000×10-15m2/N,而PZT和高分子材料通过适当方式复合制成的压电复合材料q值可达200 000×10-15m2/N,为PZT的1000倍。由于相对密度较小与水声阻抗匹配得更好,而减小声波在界面上的反射。复合材料具韧性,更能承受由压力涨落而引起的机械力冲击,并易做成所需的形状。

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