Moving Screw Dislocation Near Interfacial Rigid Lines in Two Dissimilar Anisotropic Media

LIU You-wen; LI Bo; FANG Qi-hong

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LIU You-wen, LI Bo, FANG Qi-hong. Moving Screw Dislocation Near Interfacial Rigid Lines in Two Dissimilar Anisotropic Media[J]. Applied Mathematics and Mechanics, 2008, 29(5): 564-574.

Citation:

LIU You-wen, LI Bo, FANG Qi-hong. Moving Screw Dislocation Near Interfacial Rigid Lines in Two Dissimilar Anisotropic Media[J]. Applied Mathematics and Mechanics, 2008, 29(5): 564-574.

Citation:

LIU You-wen, LI Bo, FANG Qi-hong. Moving Screw Dislocation Near Interfacial Rigid Lines in Two Dissimilar Anisotropic Media[J]. Applied Mathematics and Mechanics, 2008, 29(5): 564-574.

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Moving Screw Dislocation Near Interfacial Rigid Lines in Two Dissimilar Anisotropic Media

Department of Engineering Mechanics, College of Mechanics and Aerospace, Hunan University, Changsha 410082, P. R. China

Received Date: 2007-08-28
Rev Recd Date: 2008-03-18
Publish Date: 2008-05-15

Abstract

Abstract

The problem for the interaction between a uniformly moving screw dislocation and interface rigid lines in two dissimilar anisotropic materials are investigated.Using Riemann-Schwarz's symmetry principle integrated with the analysis singularity of complex functions,the general elastic solutions of this problem and the closed form solutions for interface containing one and two rigid lines were presented.The expressions of stress intensity factors at the rigid line tips and image force acting on moving dislocation were derived explicitly.The results show that dislocation velocity has antishielding effect on rigid line tip and larger dislocation velocity leads to the equilibrium position of dislocation closing with rigid line.The presented solutions contain previously known results as the special cases.
- anisotropic bimaterials,
- moving screw dislocation,
- interfacial rigid lines,
- image force

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References(22)

References

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