Issue 43

F. Majid et alii, Frattura ed Integrità Strutturale, 43 (2018) 97-105; DOI: 10.3221/IGF-ESIS.43.07 99 Figure 2 : Groove Notch preparation and dimensions. Table 1 : Burst pressure evolution in function of the life fraction. Figure 3 : Rupture of PPR pipes. Number of specimens d (mm) l (mm) β = a/t Neat 6 100 0 1 6 100 0.16 2 6 100 0.32 3 6 100 0.43 4 6 100 0.54 5 6 100 0.71 6 6 100 0.80 7 6 100 0.90 8 6 100 0.97