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Very high cycle fatigue measuring techniques
International Journal of Fatigue, 2014Abstract Ever since high-strength steels were found to fail below the traditional fatigue limit when loaded with more than 108 cycles, the investigation of metals’ and alloys’ very high cycle fatigue properties has received increased attention. A lot of research was invested in developing methods and machinery to reduce testing times.
Stefanie Stanzl-Tschegg
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Very High Cycle Fatigue of D16T Aluminum Alloy
Physical Mesomechanics, 2021The paper provides a fractographic analysis of fatigue cracking in D16T aluminum alloy under very high cycle fatigue at a frequency of 20 kHz. The analysis shows that in the range of 2.8 × 108 to 5.1 × 109 cycles to failure, the material reveals cracks on and beneath its surface with their subsurface site developing ...
Shanyavskiy, A. +2 more
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Very high cycle fatigue – Is there a fatigue limit?
International Journal of Fatigue, 2011Abstract The paper gives an overview of the present state of research on fatigue strength and failure mechanisms at very high number of cycles ( N f > 10 7 ). Testing facilities are listed. A classification of materials with typical S – N curves and influencing factors like notches, residual stresses and environment are given.
B. Pyttel, D. Schwerdt, C. Berger
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Editorial: Special Issue on Very High Cycle Fatigue
Materials Performance and Characterization, 2023As the co-guest editors of the special issue of ASTM International’s journal Materials Performance and Characterization on very high cycle fatigue (VHCF), we are delighted to have this issue published by ASTM. Fatigue phenomena have long been a topic of significant interest and of research focusing on understanding the behavior of materials and ...
Jutima Simsiriwong +3 more
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Fatigue characteristics of bearing steel in very high cycle fatigue
Journal of Mechanical Science and Technology, 2009Very high cycle fatigue (VHCF) tests were carried out to find the fatigue characteristics of a super-long life range by using a cantilever type rotational bending fatigue test machine on three kinds of specimens in bearing steel which were quenched and tempered in air (A: non-shot peened and B: shot peened after heat treatment) and under vacuum ...
Chang-Min Suh, Jong-Hyoung Kim
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2018
In vielen Anwendungsbereichen werden Bauteile und Strukturen mit mehr als 107 Lastwechseln belastet. Beispielsweise sind Radsatzwellen und Eisenbahnrader innerhalb von wenigen Jahren nicht selten 109 Lastwechseln ausgesetzt. Auch Helikoptergetriebe haben nach einer Lebensdauer von 5000 h 109 und mehr Lastwechsel [4-1].
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In vielen Anwendungsbereichen werden Bauteile und Strukturen mit mehr als 107 Lastwechseln belastet. Beispielsweise sind Radsatzwellen und Eisenbahnrader innerhalb von wenigen Jahren nicht selten 109 Lastwechseln ausgesetzt. Auch Helikoptergetriebe haben nach einer Lebensdauer von 5000 h 109 und mehr Lastwechsel [4-1].
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Cumulative model of very high cycle fatigue
Fatigue & Fracture of Engineering Materials & Structures, 2012ABSTRACTTo predict very high cycle fatigue (VHCF) from data of standard monotonic tests the cumulative model of VHCF was elaborated. The model bases on the following assumptions: (1) Fatigue cracks are initiated, if the fraction of plastically dissipated energy corresponding to tensile stresses reaches the threshold; (2) This threshold is the constant ...
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