【摘 要】
：
In this paper, the dynamic behavior of a permeable crack in functionally graded piezoelectric/piezomagnetic materials is investigated. To make the analysis trac
论文部分内容阅读
In this paper, the dynamic behavior of a permeable crack in functionally graded piezoelectric/piezomagnetic materials is investigated. To make the analysis tractable, it is assumed that the material properties vary exponentially with the coordinate parallel to the crack. By using the Fourier transform, the problem can be solved with the help of a pair of dual integral equations in which the unknown is the jump of displacements across the crack surfaces. These equations are solved to obtain the relations between the electric filed, the magnetic flux field and the dynamic stress field near the crack tips using the Schmidt method. Numerical examples are provided to show the effect pf the functionally graded parameter and the circular frequency of the incident waves upon the stress, the electric displacement and the magnetic flux intensity factors of the crack.
其他文献
IntroductionFructus cnidii (Chinese name shechuangzi) is the fruit produced by Cnidium monnieri (L.) Cusson (Umbelliferae). It is a perennial herb that is used
Gas Hydrate is usually formed during the transportation and treatment of oil and gas,resulting in the plugging of gas pipeline and equipment. Three thermodynani
F-actins are semi-flexible polyelectrolytes and can be assembled into large polymer-actin complex with polymorphism through electrostatic interaction with polyc
We study a three-dimensional off-lattice protein folding model, which involves two species of residues interacting through Lennard-Jones potentials. By incorpor
A series of succinate-derived macrocyclic amides( 1 ) was synthesized via ring-closing metathesis (RCM) as the key step. The substrate included 12 to 15 members
This article studies one dimensional viscous Camassa-Holm equation with a periodic boundary condition. The existence of the almost periodic solution is investig
这份报纸发源维的分析的讨论并且在有磁力地帮助的使流体化的床上可伸缩。进程变量的基本检查，合并机械、磁性的单位，允许变量的混合集合的变换直到作为贡献帮助使液化行为的领
Surface water can be divided into three layers from top downward: surface microlayer(SML, thickness≤50 μm), subsurface layer (SSL, ≈25 cm) and surface layer
Four kinds of SiO2 (5-10 nm) + Fe3O4 (44.8 μm) particle were fluidized in a sole acoustic field, a sole magnetic field and a combined acousticmagnetic field. I