On the Stress Field and Dislocation Emission of an Elliptically Blunted Mode III Crack with Surface Stress Effect

Conference paper
Part of the IUTAM Bookseries (closed) book series (IUTAMBOOK, volume 31)


The stress field of an elliptically blunted crack under remote antiplane shear loading and its interaction with a nearby screw dislocation are investigated with the complex variable method. The Gurtin-Murdoch model is adopted to characterize the surface stress effect of the nano blunt crack. It is found that the surface stress effect can influence the stress field of the nano blunt crack, the critical load for dislocation emission and the shielding effect of the dislocation significantly.


Critical Load Energy Release Rate Surface Effect Screw Dislocation Polar Coordinate System 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



This project is supported by National Natural Science Foundation of China (Grant No. 10802032) and Research Fund for the Doctoral Program of Higher Education of China (No. 200804871001).


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Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  1. 1.School of Civil Engineering and MechanicsHuazhong University of Science and TechnologyWuhanP.R. China
  2. 2.Hubei Key Laboratory for Engineering Structural Analysis and Safety AssessmentWuhanP.R. China

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