Abstract
The approach of fracture dynamic of elements with cracks, even today, is experimentally and theoretically difficult. For this reason some particularities of the dynamic stress intensity factor are underlined. The authors present also an experimental method for the determination of KId starting from the observation that this value characterizes the final break at impact fatigue tests. For two test steels the dynamic fracture toughness was found lower that the static one.
Cuvinte cheie
Dynamic stress intensity factor
dynamic fracture
dynamic fracture toughness
three point bend test