Crack Paths 2012
200Pm
200 P m
03D¥P N=0.75
R ol =1.6: K I =21.4 03D¥P N=0.67
Rol=1.8: KI=24.1
200 P m
200 P m
R ol =2.0: K I =27.0 03D¥P N=0.84
Rol=2.1: KI=28.1 03D¥P N=0.86
200 P m
200 P m
Rol=2.2: KI=29.9 03D¥P N=0.93
Rol=2.4: KI=33.1 03D¥P N=1.03
Figure 5. Microstructural effects at the crack tip obtained with pulsed reflection
microspcope on SENB3specimen for different overload ratios Rol.
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