Issue 47

A. Bensari et alii, Frattura ed Integrità Strutturale, 47 (2019) 17-29; DOI: 10.3221/IGF-ESIS.47.02 25 degrees of freedom (DOF) that are tied to the nodes of the elements intersected by the crack. Figure 9 : Compact tension Specimen CT75. Figure 10 : The SIF and G values as a function of crack length for the base metal (B=7 and 14 mm). Figure 11 : The SIF and G values as a function of crack length for HAZ (B=7 and 14 mm). 15 20 25 30 35 40 45 50 0 50 100 150 200 250 300 350 400 b) Base Metal G (N/mm) Crack length (mm) G Numerical (thick. 7 mm) G Numerical (thick. 14 mm) G Analytical (thick. 7 mm) G Analytical (thick. 14 mm) 15 20 25 30 35 40 45 50 0 50 100 150 200 250 300 350 400 b) HAZ G (N/mm) Crack length (mm) G Numerical (thick. 7 mm) G Numerical (thick. 14 mm) G Analytical (thick. 7 mm) G Analytical (thick. 14 mm)