Manufacturing Technology 2020, 20(5):612-616

Spectral fatigue life for simple notched component

Adam Kaľavský, Róbert Huňady, Pavol Lengvarsky
Faculty of Applied Mechanics and Mechanical Engineering, Technical University of Košice. Letná 9, 04 200 Košice. The Slovak Republic.

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 ČSN 42 0363 and ČSN ISO 12 107 standards. Knowledge of material fatigue, statistics, modal analysis and signal processing were used in the experimental and numerical part.

Keywords: S-N curve, spectral fatigue, life prediction, Dirlik
Grants and funding:

The project VEGA 1/0355/18.

Received: May 1, 2020; Revised: August 28, 2020; Accepted: September 24, 2020; Prepublished online: November 23, 2020; Published: December 14, 2020  Show citation

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Kaľavský A, Huňady R, Lengvarsky P. Spectral fatigue life for simple notched component. Manufacturing Technology. 2020;20(5):612-616.
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