PT Journal AU Kalavsky, A Hunady, R Lengvarsky, P TI Spectral fatigue life for simple notched component SO Manufacturing Technology Journal PY 2020 BP 612 EP 616 VL 20 IS 5 DE S-N curve; spectral fatigue; life prediction; Dirlik AB The paper describes a procedure for calculating the lifetime in the frequency domain, which is supplemented by an experiment. The aim of the experiment was to find the required mechanical properties of the material to describe the behavior of the material during fatigue analysis. Experimental modal analysis was performed to estimate damping, which supported numerical calculation and refined results of numerical simulations. The authors made an estimate of fatigue curve (SN-curves) according to CSN 42 0363 and CSN ISO 12 107 standards. Knowledge of material fatigue, statistics, modal analysis and signal processing were used in the experimental and numerical part. ER