Issue34

J. Pokluda et alii, Frattura ed Integrità Strutturale, 34 (2015) 142-149; DOI: 10.3221/IGF-ESIS.34.15 147 -75 -50 -25 0 25 50 75 0 50 100 150 200 250 300 350 400 l [μm] z [μm] -75 -50 -25 0 25 50 75 0 50 100 150 200 250 300 350 l [μm] z [μm] Figure 4 : Mode II in pearlitic steel, cylindrical shear specimen (a) , compact-tension shear specimen (b) . The white arrow defines the profile showed below and is parallel to the applied shear direction. -100 -50 0 50 100 0 100 200 300 400 500 600 700 800 900 l [μm] z [μm] -30 -20 -10 0 10 20 0 50 100 150 200 250 300 350 l [μm] z [μm] Figure 5 : Mode III in pearlitic steel, cylindrical shear specimen (a) , torsion specimen (b) . The white arrow defines the profile showed below and is parallel to the applied shear direction. (a) (b) (a) (b) precrack mode II final fracture precrack mode II final fracture precrack mode III final fracture precrack mode III final fracture 62° 63° 37° 46°