Behaviour of short fatigue cracks in a naval steel (original) (raw)

The research investigates fatigue damage in S355NL naval steel, focusing on short fatigue cracks initiated around defects causing local stress concentrations. The analysis contrasts the behavior of short and long cracks regarding initiation and propagation, utilizing a series of laboratory tests that measure the stresses and conditions leading to crack formation. Results indicate unique characteristics of short crack propagation influenced by loading conditions and the presence of crack closure effects.