Issue 30

B. Tyson et alii, Frattura ed Integrità Strutturale, 30 (2014) 95-100; DOI: 10.3221/IGF-ESIS.30.13 98 Figure 4 : Comparison of calculated crack size with measured size. Table 1 : Results of CANMET round robin: a 0q and a 0 are initial calculated and measured crack size values respectively, and a f is the final crack size. Lab Spec. a 0q , mm 0 0 q a a a f , mm fcalc meas a a     f f 0 0 9 R-curve point    q a a a a calc. meas. calc. meas. A HT-1 6.92 6.95 0.996 9.32 9.44 0.987 0.964 HT-3 7.13 7.13 1.001 9.69 9.79 0.989 0.963 HT-5 7.07 7.08 0.998 8.50 8.63 0.985 0.925 HT-7 7.37 7.36 1.000 10.23 10.43 0.981 0.937 D 5108 6.93 7.02 0.987 9.35 9.99 0.936 0.960 5208 6.63 6.85 0.967 9.72 9.99 0.973 0.933 5407 7.80 8.04 0.970 9.94 10.29 0.966 0.896 5409 6.77 6.65 1.017 9.67 9.41 1.028 1.004 E RR5102 7.99 7.77 1.027 10.69 10.82 0.988 0.977 RR5109 6.20 5.82 1.066 8.76 8.61 1.017 0.915 RR5308 7.09 7.09 1.000 9.80 9.98 0.982 0.936 RR5410 7.21 7.06 1.022 10.08 10.36 0.973 0.869 I 5103 7.50 6.81 1.101 8.83 8.62 1.025 0.646 5205 7.50 6.73 1.114 9.99 9.03 1.106 0.841 5406 7.28 6.59 1.104 8.84 8.35 1.059 0.840 J 5504 6.38 6.59 0.968 7.75 8.16 0.950 0.873 5505 6.22 6.46 0.963 7.59 7.99 0.950 0.901 5507 6.38 6.70 0.952 7.65 8.10 0.944 0.901 5509 6.70 7.01 0.956 7.95 8.43 0.943 0.880 L 5401 7.34 7.36 0.997 9.55 9.48 1.007 1.025 5104 7.27 7.20 1.009 9.22 9.11 1.012 1.027 5101 7.91 7.88 1.004 10.85 11.04 0.983 0.928 5508 7.30 7.25 1.007 9.24 9.07 1.019 1.061 N 5408 7.59 7.48 1.016 8.15 8.04 1.014 0.875 5105 7.26 7.17 1.013 7.82 7.76 1.008 0.956 5201 7.43 7.36 1.008 8.02 7.99 1.004 0.921 5202 7.06 6.97 1.013 7.61 7.68 0.991 0.938 O RRT01 6.849 6.184 1.108 8.32 7.61 1.094 1.035 RRT02 6.842 6.213 1.101 8.45 7.62 1.109 1.142 RRT03 6.784 5.974 1.136 8.22 7.21 1.140 1.161 RRT04 6.582 5.963 1.104 7.92 7.24 1.094 1.125 Avg. 1.023 1.008 0.947 Std. Devn. 0.053 0.053 0.100