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Vibration fatigue

About: Vibration fatigue is a research topic. Over the lifetime, 3460 publications have been published within this topic receiving 46297 citations.


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Journal ArticleDOI
TL;DR: In this article, a generalised step-by-step procedure for fatigue crack growth analysis of structural components subjected to variable amplitude loading spectra has been presented, illustrated by analyzing fatigue growth of planar corner crack in an attachment lug made of Al7050-T7451 alloy.

34 citations

Journal ArticleDOI
TL;DR: In this paper, a finite element model was developed to predict weld residual stress and simulate the vibratory stress relief Both resonant and non-resonant vibration stress relief were studied to better understand the mechanism of vibration stress relieving.
Abstract: A finite element model was developed to predict weld residual stress and simulate the vibratory stress relief Both resonant and nonresonant vibration stress relief were studied to better understand the mechanism of vibration stress relief The effect of process parameters, vibration amplitude and frequency, of vibration stress relief on weld residual stress reduction was investigated with the developed model It was found that both resonant and nonresonant vibration stress relief can relieve weld residual stresses For the nonresonant vibration, the stress reduction strongly depends on the vibration’s amplitude For the resonant vibration, the vibration’s frequency is essential to stress relief The vibration’s frequency should be close to the structure’s natural frequency for the desired vibration mode

33 citations

Journal ArticleDOI
TL;DR: In this article, the fundamental stress-life cycle relationship and an accumulation rule are given, and several formulas are derived to estimate the fatigue damage or fatigue life of a component when a component is subjected to variable-amplitude loading.

33 citations

Journal ArticleDOI
TL;DR: In this paper, the effects of small surface defects and small cracks on the fatigue limit of metallic materials were investigated using the McEvily model to account for the Kitagawa effect, the elastoplastic behavior in the vicinity of the crack tip, and the crack closure development.

33 citations

Journal ArticleDOI
TL;DR: In this article, an evaluation of the fatigue characteristics of a knuckle using a gravel road profile acquired using a data acquisition system and standard SAE profiles for the suspension (SAESUS), bracket (SAEBRAKT), and transmission (SAETRN) is presented.
Abstract: In automobile design, the safety of passengers is of prime concern to the manufacturers. Suspension is one of the safety-related automotive systems which is responsible for maintaining traction between the road and tires, and offers a comfortable ride experience to the passengers by absorbing disturbances. One of the critical components of the suspension system is the knuckle, which constantly faces cyclic loads subjecting it to fatigue failure. This paper presents an evaluation of the fatigue characteristics of a knuckle using a gravel road profile acquired using a data acquisition system and standard SAE profiles for the suspension (SAESUS), bracket (SAEBRAKT) and transmission (SAETRN). The gravel road profile was applied as the input to a multi body simulation (MBS), and the load history for various mounting points of the knuckle is extracted. Fatigue life is predicted using the strain-life method. The instantaneous stress distributions and maximum principal stress are used for fatigue life predictions. From the results, the strut connection is found to be the critical region for fatigue failure. The fatigue life from loading extracted from gravel road MBS agreed well with the life prediction when standard SAE profiles were used. This close agreement shows the effectiveness of the load extraction technique from MBS. This method can also be effectively used for more complex loading conditions that occur during real driving environments.

33 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202355
2022125
202136
202035
201941
201855