期刊文献+
共找到1篇文章
< 1 >
每页显示 20 50 100
Interaction between a screw dislocation and an elastic elliptical inhomogeneity with interfacial cracks 被引量:5
1
作者 QihongFang YouwenLiu chipingjiang 《Acta Mechanica Sinica》 SCIE EI CAS CSCD 2005年第2期151-159,共9页
The elastic interaction between a screw dislocation and an elliptical inhomogeneity with interfacial cracks is studied. The screw dislocation may be located outside or inside the inhomogeneity. An efficient complex va... The elastic interaction between a screw dislocation and an elliptical inhomogeneity with interfacial cracks is studied. The screw dislocation may be located outside or inside the inhomogeneity. An efficient complex variable method for the complex multiply connected region is developed, and the general solutions to the problem are derived. As illustrative examples, solutions in explicit series form for complex potentials are presented in the case of one or two interfacial cracks. Image forces on the dislocation are calculated by using the Peach-Koehler formula. The influence of crack geometries and material properties on the image forces is evaluated and discussed. It is shown that the interfacial crack has a significant effect on the equilibrium position of the dislocation near an elliptical-arc interface. The main results indicate, when the length of the crack goes up to a critical value, the presence of the interfacial crack can change the interaction mechanism between a screw dislocation and an elliptical inclusion. The present solutions can include a number of previously known results as special cases. 展开更多
关键词 Interfacial cracks Screw dislocation Elliptical inhomogeneity Image force Complex variable method
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部