| 径向压电圆环中的螺位错分析 |
| |
| 引用本文： | 孔艳平,陈长虹,刘金喜,段淑敏.径向压电圆环中的螺位错分析[J].工程力学,2008,25(12). |
| |
| 作者姓名： | 孔艳平 陈长虹 刘金喜 段淑敏 |
| |
| 作者单位： | 石家庄铁道学院工程力学系; |
| |
| 基金项目： | 国家自然科学基金项目(10472074) |
| |
| 摘 要： | 研究了径向层状压电复合介质中的螺位错与界面的相互作用。基于扰动的概念和洛朗级数展开的方法,推导了基体和压电环的弹性场和电场,并在此基础上给出了像力的表达式,分析了几何尺寸和材料的相对刚度对像力和界面应力的影响,得到了新的相互作用机理。
|
| 关 键 词： | 压电材料 螺位错 电弹场 像力 洛朗级数 |
ANALYSIS OF SCREW DISLOCATION IN PIEZOELECTRIC HOLLOW LAYER CYLINDER |
| |
| KONG Yan-ping,CHEN Chang-hong,LIU Jin-xi,DOAN Shu-min.ANALYSIS OF SCREW DISLOCATION IN PIEZOELECTRIC HOLLOW LAYER CYLINDER[J].Engineering Mechanics,2008,25(12). |
| |
| Authors: | KONG Yan-ping CHEN Chang-hong LIU Jin-xi DOAN Shu-min |
| |
| Affiliation: | Department of mechanics;Shijiazhuang Railway Insititute;Shijiazhuang;Hebei 050043;China |
| |
| Abstract: | The electro-elastic interaction between a piezoelectric screw dislocation and its associated interface is investigated in this paper. The electro-elastic fields were given explicitly adopting the perturbation concept and using the method of Laurent series expansion. Furthermore, expressions of the image force acting on a piezoelectric screw dislocation were obtained. Numerical examples are provided to reveal the effect of piezoelectricity and the relative stiffness between the interface stress and the image... |
| |
| Keywords: | piezoelectric material screw dislocation electro-elastic fields image force laurent series |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
