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Keywords: fatigue life
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eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2017
ISBN: 978-0-8031-7643-0
... This research presents fatigue life test results for several versions of 208-size (40-mm bore) Pyrowear 675 angular contact bearings. Results with different heat treatments of the Pyrowear 675 materials in a hybrid configuration (silicon nitride rolling elements) are compared to all-metal AISI...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2017
ISBN: 978-0-8031-7639-3
... durability and reliability was developed to provide a pragmatic, conservative, and economically viable solution—hence, the predominance of fatigue life approximations in cold or ambient conditions. Through the definition of target loading using measured field data collection, and determination of component...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2010
ISBN: 978-0-8031-7510-5
... model. hydrogen bearing steel fatigue life R. H. Vegter1 and J. T. Slycke1 Reprinted from JAI, Vol. 7, No. 2 doi:10.1520/JAI102543 Available online at www.astm.org/JAI The Role of Hydrogen on Rolling Contact Fatigue Response of Rolling Element Bearings ABSTRACT: It is generally accepted...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2007
ISBN-10: 0-8031-3491-6
ISBN: 978-0-8031-3491-1
... hardness, in certain applications bearings made in carburized AISI 316L exhibited excellent durability together with low friction characteristics. rolling contact bearing austenitic stainless steel corrosion resistance nonmagnetic carburizing wear resistance fatigue life Journal of ASTM...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2006
ISBN-10: 0-8031-3401-0
ISBN: 978-0-8031-3401-0
... Copper alloys are found to experience a stress relaxation during holds at maximum tension and maximum compression during cyclic loading patterns. This stress relaxation response has an effect on fatigue life by reducing the numbers of cycles to failure, particularly in the high cycle fatigue...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2005
ISBN-10: 0-8031-3479-7
ISBN: 978-0-8031-3479-9
... (if any) was determined using replicas. The measurements were made at the maximum stress for constant amplitude tests and at a chosen positive stress for variable amplitude tests (avoiding any overload). The smallest crack size detected is about 10 μm. notch crack initiation fatigue life local...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2003
ISBN-10: 0-8031-3456-8
ISBN: 978-0-8031-3456-0
... crack initiation propagation simulation fatigue life Yoshiharu Mutoh, 1 Jin-Quan Xu, 2 and Kazunori Kondoh 3 Observations and Analysis of Fretting Fatigue Crack Initiation and Propagation Reference: Mutoh, Y., Xu, J. Q., and Kondoh, K., "Observations and Analysis of Fretting Fatigue Crack...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2003
ISBN-10: 0-8031-2899-1
ISBN: 978-0-8031-2899-6
... and/or conservative manner. three-dimensional non-planar mixed-mode fracture mechanics fatigue life experimental numerical fatigue crack William T. Riddell~,Anthony R. Ingraffea2and Paul A. Wawrzynek3 Propagation of Non-Planar Fatigue Cracks: Experimental Observations and Numerical Simulations...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2003
ISBN-10: 0-8031-3467-3
ISBN: 978-0-8031-3467-6
... of 6.67∙10 -5 s -1 . This CCD cycle is considered to be close to service conditions. The mechanical strain range Δε m was varied in the range of Δε mech = 1%, leading to fatigue lives in the order of some 1000 cycles. It could be shown that pre-rafting in compression enhances the TMF fatigue life...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2002
ISBN-10: 0-8031-2890-8
ISBN: 978-0-8031-2890-3
... this software, indicating the new features and possible future improvements. notch crack initiation fatigue life local strain short crack prediction fracture mechanics Nicolas G6rard,1Narayanaswami Ranganathan, 1Ren6 Leroy) Mohamed Mazari,2 and BelAbbes Bachir-Bouiadjira2 Fatigue Crack Initiation...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2002
ISBN-10: 0-8031-2894-0
ISBN: 978-0-8031-2894-1
.... There are many techniques that have been developed and used over the years such as blue fracture test, microscopic evaluation, oxygen analysis, sophisticated ultrasonic techniques and longer range tests such as fatigue life testing. The control of the process steps in making steel is a critical part of clean...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2002
ISBN-10: 0-8031-2894-0
ISBN: 978-0-8031-2894-1
... The evaluation of the nonmetallic inclusions is very important to estimate the rolling contact fatigue life of bearing steel. The study of the ultrasonic testing as nondestructive testing made it clear that the nonmetallic inclusion over 10 μ m could be detected and there was a relationship...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2002
ISBN-10: 0-8031-2894-0
ISBN: 978-0-8031-2894-1
... for both long fatigue life and noise performance and high corrosion resistance. Carbide size and hardness comparable to AISI 52100 steel were essential for the new stainless bearing steel(ES1), so we lowered the carbon and chromium contents and increased the nitrogen content of AISI440C. To control...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2002
ISBN-10: 0-8031-2894-0
ISBN: 978-0-8031-2894-1
... for calculation of rolling bearing capacities and fatigue lives are based on the 1947 and 1952 publications of Lundberg and Palmgren. They defined separate material factors for ball bearings and roller bearings fabricated from 52100 steel, through-hardened to at least 58 Rockwell C; the fatigue life predictions...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2002
ISBN-10: 0-8031-2894-0
ISBN: 978-0-8031-2894-1
.... The predictive capabilities of the model have been used to study the influence of parameters, such as the applied load, the specimen size, etc. bearing steel rolling contact inclusion crack nucleation crack propagation statistic fatigue life Grrard Lormand,1 David Piot,a'2 Alain Vincent, 1Gilles...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2001
ISBN-10: 0-8031-2883-5
ISBN: 978-0-8031-2883-5
... Investigations into fatigue failure of the cam rings of hydraulic motors revealed a characteristic ripple superimposed on the surface profile. It was also found that the incidence of failure coincided with sites having high humidity. This paper shows how reduced fatigue life under...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1998
ISBN-10: 0-8031-2421-X
ISBN: 978-0-8031-2421-9
.... The aim of this paper is to present a new quantitative method which predicts the rolling fatigue life distribution of bearings. This approach is based on a model of fatigue crack initiation in the vicinity of an inclusion in the steel matrix and on a simple fatigue crack propagation relationship...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1997
ISBN-10: 0-8031-2033-8
ISBN: 978-0-8031-2033-4
... degradation was monitored carefully, and a trend was observed. Based on the observed trend, a stiffness reduction model as a function of fatigue life was proposed that accounted for applied maximum strain and initial damage based on the first cycle maximum strain. The model was shown to be quite effective...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1997
ISBN-10: 0-8031-2408-2
ISBN: 978-0-8031-2408-0
... In high temperature waters that contain dissolved oxygen (DO) to certain content, the fatigue life of carbon steel is strongly affected by strain rate. A formula has been advanced to quantify this effect when the strain rate is held constant. However, the strain rate changes continuously in most...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1997
ISBN-10: 0-8031-2408-2
ISBN: 978-0-8031-2408-0
... in LWR-simulated water environments were evaluated and analyzed. The results of the present study are summarized as follows; 1) The decrease in fatigue life of carbon steel STS410 in BWR-simulated water environments occurs at temperatures above 200°C and with DO higher than 0.1ppm. The rate of decrease...