13th International Conference on Fracture June 16–21, 2013, Beijing, China -6- 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.20 A б/б0 DECP,a/W=0.3 λ=0.5 ◆ FEM,n=3 ◇ FEM,n=4 ■ FEM,n=5 □ FEM,n=7 ▲ FEM,n=10 Figure 8. . FEA solutions of constraint parameter A for DECP, a/W=0.3, λ=0.5 0.0 0.2 0.4 0.6 0.8 1.0 1.2 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 A б/б0 DECP,a/W=0.7 λ=0.5 ◆ FEM,n=3 ◇ FEM,n=4 ■ FEM,n=5 □ FEM,n=7 ▲ FEM,n=10 Figure 9. . FEA solutions of constraint parameter A for DECP, a/W=0.7, λ=0.5 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.20 A б/б0 DECP,a/W=0.3 λ=1.0 ◆ FEM,n=3 ◇ FEM,n=4 ■ FEM,n=5 □ FEM,n=7 ▲ FEM,n=10 Figure 10. . FEA solutions of constraint parameter A for DECP, a/W=0.3, λ=1.0 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 1.10 1.20 1.30 A б/б0 DECP,a/W=0.7 λ=1.0 ◆ FEM,n=3 ◇ FEM,n=4 ■ FEM,n=5 □ FEM,n=7 ▲ FEM,n=10 Figure 11. . FEA solutions of constraint parameter A for DECP, a/W=0.7, λ=1.0 3.3. FEA results In the present work, a wide range of finite element analyses for three typical specimens (SECP, CCP and DECP) under biaxial loading are completed. Based on the FEA results, numerical solutions of constraint parameter A are determined by using the fitting method suggested by Nikishkov et al. [12].
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