LCF damage model effectiveness for steel super alloys

Aircraft liners represent an engineering challenge due too high temperature varying over time, high thermal gradients, creep related phenomena, mechanical fatigue and vibrations. For life assessment uniaxial damage models for Low Cycle Fatigue (LCF) as Basquin–Manson–Coffin, Neu–Sehitoglu and Chaboche models, were compared. For models calibration, experimental LCF results for full size specimens were used. Results obtained in different testing conditions were utilized for validation. In particular, the relations with temperature of models parameters were obtained from testing in different conditions.