Issue 36

R. Tovo et alii, Frattura ed Integrità Strutturale, 36 (2016) 119-129 DOI: 10.3221/IGF-ESIS.36.10 125 Load ratio Specimen Crack initiation α [deg] R=0.1 W128 advancing side 1 W122 advancing side 20 W124 double location -40 W120 not separated 0 W112 run out W129 advancing side -110 W130 middle -75 W117 not separated 0 W118 middle -45 W113 run out R= -1 W115 advancing side 89 W111 double location 160 W127 double location 30 W114 advancing side -95 W123 run out W116 run out W119 advancing side -135 W121 not separated W125 run out Table 3 : Crack initiation location. Figure 8: Frequency of crack initiation by location. 0 1 2 3 4 5 advancing middle double Specimen quantity Side R= 0.1 R= ‐1