Statistical evaluation of strain-life fatigue crack initiation predictions

Experimental and Numerical Crack Initiation Analysis of the Compressor Blades Working in Resonance Conditions

“…The main procedures used in -N analysis are: Several years ago Basquin observed that stress-life data may be represented by a straight line relationship when plotted using log scales [19,20,21]. The relationship could be expressed in terms of the true stress as:…”

“…Coffin and Manson [20,21] independently proposed that the plastic component of a fatigue cycle may be also related to life by a simple power law:…”

“…The term "rainflow" is attributed to two Japanese scientists: Matsuiti and Ando [20] who invented this method. It is based on the concept of rain drops dripping down the pagoda roofs.…”

“…This program enables performing the -N analysis for the geometrically complicated numerical models defined by the user [20]. The program Fatigue needs (as the input data) the results obtained from the static stress analysis.…”

“…Baumel and Seeger [20,21] have proceeded with an alternative approach based on the results of more than 1500 fatigue tests. This approach (Tab.…”