期刊论文

Liu, Y. W.

英文

Mechanics of Advanced Materials and Structures

1537-6494

2015

22

5

349-358

10.1080/15376494.2012.736058

The authors gratefully acknowledge the support by the Science Fund of State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body (No. 60870005), the National Natural Science Foundation of China (Nos. 550801025, 10872065, 11172094, and 11172095), and the Doctor Station Fund of Institutions of Higher Learning (No. 200805320023).

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The interaction problem of a piezoelectric screw dislocation dipole with a confocal elliptic blunt crack in elliptical inhomogeneity subjected to remote anti-plane stress field and in-plane electric field is investigated by using the complex method of elasticity. The exact closed-form solutions of a series of quantities, such as singularity stress field, image force and image torque acting on the center of screw dislocation dipole, stress intensity factor and electric displacement intensity factor of crack tip, energy release rate, and generalized strain energy density are obtained. Then the i...