13th International Conference on Fracture June 16–21, 2013, Beijing, China -7- 0 20 40 60 80 100 120 0 20 40 60 80 100 K(σmax) (MPa·m1/2) a (mm) Analytic method Present method KIc=104 74.57 86.07 a0=0.5 Figure 4. SIF versus the crack size 0.0E+0 5.0E+4 1.0E+5 1.5E+5 2.0E+5 2.5E+5 3.0E+5 0 20 40 60 80 100 N (cycle) a (mm) Analytic method Present method Np=2.65E+5 74.57 86.07 a0=0.5 Figure 5. Number of cycles versus the crack size 5. Conclusions The SFBEM based on the Erdogan fundamental solutions has high accuracy and efficiency for SIF analysis of linear-elastic cracked structures, and therefore can serve as an effective approach for
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