13th International Conference on Fracture June 16–21, 2013, Beijing, China -9- (a) Before subtraction (b) After subtraction Figure 14. Both log plots of the atomic stress σyy along the interface (a) Before subtracting the initial stress (b) After subtracting the initial stress Figure 15. Stress distribution along the interface in the incoherent model (a) Before subtracting the initial stress (b) After subtracting the initial stress Figure 16. Distribution of stress, σyy, on the interface in the coherent interface model Figure 13. Order of stress singularity λ against the angle ω
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