ELASTIC ANALYSIS OF INTERACTION BETWEEN A SCREW DISLOCATION AND A COATED NANO-INHOMOGENEITY INCORPORATING INTERFACE STRESSES

摘要：

The interaction between a screw dislocation inside a coated nano-inhomogeneity and the matrix incorporating interface stresses is investigated.The analytical expressions ofthe complex potentials,stress fields and the image force are obtained by means of the complex variable function method.The results indicate that the influence of the interface stress on the movement and equilibrium positions of the dislocation becomes significant when the radius of the inhomogeneity is reduced to nanometers.An additional repulsive force or attractive force is produced and the normalized image force depends on the size of the inhomogeneity.

关键词： screw dislocation coated nano-inhomogeneity interface stress image force complex variable function method

作者: D.D.Zhang Z.Y.Ou

作者单位: School of Science,Lanzhou University of Technology,Gansu,Lanzhou 730050,China

会议类型: 国际会议

会议名称: The Third International Conference on Heterogeneous Material Mechanics(第三届国际非均匀材料力学会议)

会议地点: 上海

会议语种:英文

页码: 116-119

在线出版日期: 2011-05-22（万方平台首次上网日期，不代表论文的发表时间）