Results 251 to 260 of about 322,223 (300)

Very high cycle fatigue – Is there a fatigue limit?

International Journal of Fatigue, 2011
Abstract 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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Fatigue characteristics of bearing steel in very high cycle fatigue

Journal of Mechanical Science and Technology, 2009
Very 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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Very high cycle fatigue of normalized carbon steels

International Journal of Fatigue, 2006
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zettl, B., Mayer, H., Ede, C., Stanzl-Tschegg, S.   +3 more
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Very high cycle fatigue measuring techniques

International Journal of Fatigue, 2014
Abstract 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.
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Thermal Dissipation Calculation in Very High Cycle Fatigue

Key Engineering Materials, 2015
Very high cycle fatigue is often implemented with high test frequency to save time. The thermal dissipation accompanied with the high frequency appears and induces the temperature increment in the speicmen’s surface. The dissipation power is important and closely related with VHCF performance.
Zhi Yong Huang, Chong Wang, Qing Yuan Wang   +2 more
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Cumulative model of very high cycle fatigue

Fatigue & Fracture of Engineering Materials & Structures, 2012
ABSTRACTTo 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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Very high cycle fatigue

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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Fatigue Behavior of Titanium Alloys under Very High Cycle Fatigue Loading

Inorganic Materials: Applied Research, 2018
New test results for samples of the titanium alloy VT3-1 in the region of very high cycle fatigue at the loading frequency of 20 kHz are obtained. Using the metallographic analysis on the sections of the compressor disk from which samples were made to study the stamped material, significant heterogeneity in the distribution of two-phase plate structure
A. D. Nikitin, A. A. Shanyavskiy, N. N. Beklemishev   +2 more
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Step loading for very high cycle fatigue

Fatigue & Fracture of Engineering Materials & Structures, 2002
ABSTRACT The conventional method for determining fatigue strength at high cycle counts is to either extrapolate S–N data from lower cycle counts or to generate S–N data in the high cycle count regime using special high frequency test machines. In the process of generating S–N data, runout tests often occur where no failure is obtained within the ...
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The most Influential Articles in Very High Cycle Fatigue

Key Engineering Materials, 2015
The most influential articles in Very high cycle fatigue (VHCF) during last 20 years have been identified from web of science data. It has been found that VHCF is an important category of fatigue damage and has produced the highest impact in the field. The number of articles and their citations is continuously increasing in the overall published papers
Q.Y. Wang, Muhammad Kashif Khan
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