PSI - Issue 31

Milivoje Jovanović et al. / Procedia Structural Integrity 31 (2021) 38 –44 M. Jovanovi ć et. al. / Structural Integrity Procedia 00 (2019) 000–000

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Table 6. Impact test results for specimens with V-2 notch in HAZ

Impact total energy, AT, J

Crack initiation energy, AI, J

Crack propagation energy, AP, J

Specimen mark

HAZ - 1 HAZ - 2 HAZ - 3

248 246 249

70 59 70

178 187 179

Fig. 4. Impact test diagrams, for specimen HAZ-1

Table 7. Calculated values of K Ic for specimens notched in BM Specimen mark Testing temperature,  C

Critical J-integral, J Ic , kJ/m 2

Critical stress intensity factor, K Ic , MPa m 1/2

PM-1K PM-2K PM-3K

131.1 144.2 124.0

173.9 182.4 169.2

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Table 8. Calculated values of K Ic for specimens notched in WM Specimen mark Testing temperature,  C

Critical J-integral, J Ic , kJ/m2

Critical stress intensity factor, K Ic , MPa m1/2

WM-1K WM-2K WM-3K

71.6 64.8 69.2

128.5 122.3 126.4

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Figure 5. Diagrammes F-  (a) and J-  a (b) for the specimen PM – 1K