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ELASTIC INTERACTION BETWEEN WEDGE DISCLINATION DIPOLE AND INTERNAL CRACK

ELASTIC INTERACTION BETWEEN WEDGE DISCLINATION DIPOLE AND INTERNAL CRACK
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摘要 The system of a wedge disclination dipole interacting with an internal crack was investigated. By using the complex variable method, the closed form solutions of complex potentials to this problem were presented. The analytic formulae of the physics variables, such as stress intensity factors at the tips of the crack produced by the wedge disclination dipole and the image force acting on disclination dipole center were obtained. The influence of the orientation, the dipole arm and the location of the disclination dipole on the stress intensity factors was discussed in detail. Furthermore, the equilibrium position of the wedge disclination dipole was also examined. It is shown that the shielding or antishielding effect of the wedge disclination to the stress intensity factors is significant when the disclination dipole moves to the crack tips. The system of a wedge disclination dipole interacting with an internal crack was investigated. By using the complex variable method, the closed form solutions of complex potentials to this problem were presented. The analytic formulae of the physics variables, such as stress intensity factors at the tips of the crack produced by the wedge disclination dipole and the image force acting on disclination dipole center were obtained. The influence of the orientation, the dipole arm and the location of the disclination dipole on the stress intensity factors was discussed in detail. Furthermore, the equilibrium position of the wedge disclination dipole was also examined. It is shown that the shielding or antishielding effect of the wedge disclination to the stress intensity factors is significant when the disclination dipole moves to the crack tips.
出处 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 2006年第9期1239-1247,共9页 应用数学和力学(英文版)
基金 Project supported by the National Natural Science Foundation of China (No. 10472030)
关键词 disclination dipole CRACK complex variable method image force disclination dipole crack complex variable method image force
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参考文献16

  • 1Ballarini R;Denda M.Interaction between a crack and a dislocation dipole[J],1988(01).
  • 2Sheinerman A G;Gutkin M Yu.Misfit disclinations and dislocation walls in a two-phase cylindrical composite[J],2001(02).
  • 3Wu M S.Exact solutions for a wedge disclination dipole in a transversely isotropic biomaterial[J],2000(16).
  • 4Fang Qihong;Liu Youwen;Jiang Chiping.Edge dislocation interacting with an interfacial crack along a circular inhomogeneity[J],2003(21).
  • 5Zhang T Y;Li J C M.Interaction of an edge dislocation with an interfacial crack.
  • 6Fan Dajun.Mathematical Theory of Elasticity,1983.
  • 7Muskhelishvili N L.Some Basic Problems of Mathematical Theory of Elasticity,1975.
  • 8Yang Y S;Lee S L;Lan B T.Elastic behavior of dislocation dipole near a blunt crack,1995(01).
  • 9Lin K M;Hu C T;Lee S B.Screw dislocation dipoles near an internal crack[J],1993(03).
  • 10Wang S D;Lee S B.Mechanical equilibrium of an edge dislocation dipole near a semi-infinite crack tip[J],1992(04).

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