13th International Conference on Fracture June 16–21, 2013, Beijing, China -7- 0,5 0,6 0,7 0,8 0,9 1 1,1 0 10 20 30 40 50 60 70 80 90 100 Stress intensity factor (MPa.m0.5) Crack length (mm) KI_DIC KI_FEA -0,2 -0,1 0 0,1 0,2 0,3 0 10 20 30 40 50 60 70 80 90 100 Stress intensity factor KII (MPa.m0.5) Crack length (mm) KII_DIC KII_FEA -1 0 1 2 3 4 0 10 20 30 40 50 60 70 80 90 100 Higher order term, T-stress (MPa) Crack length (mm) T stress_DIC T stress_FEA c) b) a) Figure 5. Comparison of (a)-(b) stress intensity factor, (c) T-stress determining using Finite Element Analysis and Digital Image correlation.
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