IDENTIFICATION OF FATIGUE DAMAGE OF METAL SHEETS MADE OF MATERIAL DD11 FROM AN ANALYSIS OF VIBRATION SIGNALS
Journal Title: Tribologia - Year 2017, Vol 276, Issue 6
Abstract
This paper presents a method of identifying fatigue cracking of specimens made of material DD11 based on selected characteristics of the vibration signal. Acceleration of vibrations of the free end of a specimen was taken for an analysis of specimen properties during the process of fatigue cracking. Features which enable identification and monitoring of the process of specimen cross-section cracking were indicated for the diagnostic signal. The study was conducted on an original test stand in which the process of the destruction of material cross-section is caused by a specimen’s inertia force. The study results indicated that the presented method of identification of a specimen structure change can be applied to identify the technical condition of a structure in regard to a loss of continuity and structure properties (e.g., mechanical and fatigue cracking). The results of vibration analysis were verified by penetration methods and by microscopic observation.
Authors and Affiliations
Arkadiusz RYCHLIK, Krzysztof LIGIER, Władysław KOZUBEL
Keywords
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- EP ID EP254817
- DOI 10.5604/01.3001.0010.8065
- Views 71
- Downloads 0
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