Journal ArticleDOI
Fatigue and fracture behaviour of structural Al-alloys up to very long life regimes
TLDR
Very long life fatigue and near-threshold fatigue crack growth behavior of 7075 and 6061 Al-alloys in T6 condition were investigated using accelerated fatigue testing at 19.5 kHz on a piezoelectric machine as mentioned in this paper.About:
This article is published in International Journal of Fatigue.The article was published on 2006-11-01. It has received 75 citations till now. The article focuses on the topics: Crack closure & Paris' law.read more
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Review and Prospects for Current Studies on Very High Cycle Fatigue of Metallic Materials for Machine Structural Use
TL;DR: A review of the current studies in this area performed by many researchers is described in this paper in order to provide a certain milestone in the history of the research on fatigue behavior of the metallic materials in the very high cycle regime.
Journal ArticleDOI
Probabilistic fatigue life prediction using an equivalent initial flaw size distribution
Yongming Liu,Sankaran Mahadevan +1 more
TL;DR: In this paper, a new methodology is proposed to calculate the equivalent initial flaw size (EIFS) distribution, which is based on the Kitagawa-Takahashi diagram.
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Very high cycle fatigue – Is there a fatigue limit?
TL;DR: In this paper, the authors give an overview of the present state of research on fatigue strength and failure mechanisms at very high number of cycles (N f ǫ>10 7 ). Testing facilities are listed.
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High- and very high-cycle plain fatigue resistance of shot peened high-strength aluminum alloys: The role of surface morphology
TL;DR: In this paper, the effect of shot peening on the high and very high cycle plain fatigue resistance of the Al-7075-T651 alloy was investigated by measuring with the X-ray diffraction (XRD) technique the residual stress profile before and at the end of the fatigue tests.
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Diversity of damage evolution during cyclic loading at very high numbers of cycles
TL;DR: In this paper, the authors focus on dislocation arrangement, grain orientation, grain size and surface roughening and their implications on the very high cycle fatigue (VHCF) behavior for selected virtually defect free alloys.
References
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Journal ArticleDOI
There is no infinite fatigue life in metallic materials
TL;DR: In this paper, the shape of the S-N curve beyond 10 7 cycles is unknown except in some statistical approaches, and this is also true for the fatigue limit, and the standard deviation applied to the average fatigue limit is certainly not the best way to reduce the risk of rupture in fatigue.
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Effect of inclusion on subsurface crack initiation and gigacycle fatigue strength
TL;DR: In this paper, the effect of inclusions on crack initiation and propagation in gigacycle fatigue was investigated experimentally and analytically in six high strength low alloy steels.
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Gigacycle fatigue of ferrous alloys
TL;DR: In this paper, the authors determined the very long fatigue life of ferrous alloys up to 1 x 10 10 cycles at an ultrasonic frequency of 20 kHz, and a good agreement was found with the results from conventional tests at a frequency of 25 Hz by Renault between 10 5 and 10 7 cycles for a spheroidal graphite cast iron.
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Micromechanics-based model for trends in toughness of ductile metals
TL;DR: In this article, the relationship between fracture toughness and microstructural details has been calculated for ductile materials based on a dilatational plasticity constitutive model that has recently been proposed.
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Fatigue crack growth and threshold measurements at very high frequencies
TL;DR: In this article, a survey of fatigue investigations of metallic materials, composites, metallic glass, and ceramics, determined with the ultrasound method, is presented, emphasizing the influences on dislocation structures, crack initiation, and fatigue crack growth for pure metals and for technical materials.