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Luoyang QIBR Bearing Co.,LtdCall us : +86 − −(0379)63968877 // Email us : [email protected]
Luoyang QIBR Bearing Co.,LtdCall us : +86 − −(0379)63968877 // Email us : [email protected]
Nitriding is usually applied to increase the surface properties of mechanical components and can also enhance the fatigue resistance The aim of this paper is to investigate by means of numerical models and experimental tests the effects of residual stresses induced by nitriding on the fatigue behavior of a marine diesel engine crankshaft
2019-6-9experimental tests have been performed to estimate the endurance limit and fatigue life of composite plates One of the main methods to predict fatigue life is the four-point bending test In most previous works the tests have been done in one direction (load ratio R 0)
2020-5-16An experimental investigation of the effect of tooth asymmetry and tooth root shape on root stresses and single tooth bending fatigue life of gear teeth In: Proceedings of the ASME 2011 international design engineering technical conferences computers and information in engineering conference Washington USA 2011
2008-3-7An Experimental Investigation of Fretting Fatigue with Spherical Contact in 7075-T6 Aluminum AIIoy--B u WITTKOWSKY P R BIRCH J DOMINGUEZ AND S SURESH 183 199 213 ENVIRONMENTAL EFFECTS Fretting Fatigue of Some Nickel-Based Alloys in Steam Environment at 265~ - M H ATTIA 231
2020-6-1The fatigue experimental procedure is comprised of two steps First the axial load is applied at a loading rate of 30 kN/min until the first upper limit of cyclic stress is reached Second fatigue cyclic loading with a sinusoidal shape is applied based on the preset loading path until the specimen fails Since the strength of shale is
2018-6-28An Experimental Investigation of the Influence of the Lubricant Viscosity and Additives on Gear Wear 139 other influences such as surface material surface roughness and lubrication at the contact interface are accounted for by the wear coefficientk(ChallenandOxley(12)) Whenalloftheparameters
Fatigue life and residual strength can be predicted using Eq (10) and Eq (13) with the constraint of the constants depending on the experimental Stress-Life curve The fatigue studies in the literature point out to the absence of true fatigue limit for composites (Harris 2003b Montesano et al 2013)
This work aims to investigate the fretting fatigue life and failure mode of steel Q235B plates in single-lap bolted joints Ten specimens were prepared and tested to fit thei S-N/i curve SEM (scanning electron microscope) was then employed to observe fatigue crack surfaces and identify crack initiation crack propagation and transient fracture zones Moreover a FEM model was established
In this paper the fatigue behavior of laser welded T-joints of stainless steel AISI304 is investigated experimentally In the fatigue experiments 36 specimens with a sheet thickness of 1 mm are exposed to one-dimensional cyclic loading Three different types of specimens are adopted Three groups of specimens are used two of these are non-welded and the third is welded with a transverse
Experimental Investigation into Wear and Tool Life of Milling Cutter PVD Coated Carbide Inserts While Armox 500 Steel Hard Milling Jozef MAJERK Rozmarna DUBOVSK Jaroslav JAMBOR Robert ČEP Jiř KRATOCHVL Karel KOUŘIL Abstract: The goal of the submitted paper is to evaluate the dependence of tool life T = f(v
In this study the open-hole quasi-static tensile and fatigue loading behavior of a multidirectional CFRP thick laminate representative of laminates used in the aerospace industry is studied Non-destructive techniques such as infrared thermographic (IRT) and digital image correlation (DIC) are used to analyze the behavior of this material We aim at characterizing the influence of the
2020-7-21DOI: 10 2514/6 1977-893 Corpus ID: 110359398 Experimental fatigue life investigation of cylindrical thrust chambers inproceedings{Quentmeyer1977ExperimentalFL title={Experimental fatigue life investigation of cylindrical thrust chambers} author={Richard J Quentmeyer} year={1977} }
2011-5-31EXPERIMENTAL INVESTIGATION OF FATIGUE BEHAVIOUR IN COMPOSITE BOLTED JOINTS Roman Starikov 1 and Joakim Schn 2 1 Department of Aeronautics Royal Institute of Technology SE-100 44 Stockholm Sweden 2 Structures Department The Aeronautical Research Institute of Sweden Box 11021 S-161 11 Bromma Sweden
2017-8-4Experimental investigation and FEA of wear in gear at torque loading conditions MUNDE RAHUL M 1 D P KAMBLE 2 1PG Student Department of Mechanical Engineering APCOER Parvati This paper fully focused on fatigue analysis and fatigue life is determined by FE package
2017-8-24EXPERIMENTAL INVESTIGATION OF POLYMER MATRIX C0MPOSITE FOR HEAT DISTORTION TEMPERATURE TEST Irfan Ahmed I R Rohith Renish K Karthik and M Karthick long life (both wear and fatigue life usually 10–15 years without maintenance) and low frictional power are quite common Use of inorganic fillers dispersed in
The fatigue failure analysis based on stress-life method is especially useful for a wide range of gear design applications and represents high-cycle applications adequately In particular the steel for gears requires a great variety of tests to define the fatigue strength versus the number of load cycles
2015-8-1an experimental investigation of the bolt clamping force and friction effect on the fatigue___ 66 USA a r t i c l e i n f o a b s t r a c t In this article the effect of bolt clamping force on the fatigue life of bolted double shear lap joints was
2015-6-1EXPERIMENTAL INVESTIGATION OF WEAR RESISTANCE OF MODELS metal but also to analyze the possibilities for extending the service life of structural parts Hard facing was done in three passes/layers by the MMAW procedure with use of various filler metals thermo-mechanical fatigue etc In the case of strong corrosion influence filler
2015-12-1Experimental investigation on the effect of tangential force on wear and rolling contact fatigue behaviors of wheel material Increasing the slippage improves the tractive effort which leads to a shorter fatigue life However if the slippage is further increasing the wear aggravates which may wear away cracks Wear debris is an
An Experimental investigation of metallurgical properties of thermally coated stainless steel 316l wear conditions like erosive abrasive and impact conditions than other coating tested It was in both fatigue life and fatigue limit in comparison with the uncoated steel From the microscopic point
In this study the open-hole quasi-static tensile and fatigue loading behavior of a multidirectional CFRP thick laminate representative of laminates used in the aerospace industry is studied Non-destructive techniques such as infrared thermographic (IRT) and digital image correlation (DIC) are used to analyze the behavior of this material We aim at characterizing the influence of the
2015-12-11Fatigue life 229786 272521 5 4 7 Comparison with uncoated specimen Uncoated life Coated life % increase in life Fatigue life 229786 272521 5 15 68 5 CONCLUSION 1 Taguchi orthogonal array design is suitably applied to maximize the fatigue life of phosphate coated specimen by optimizing three factors temperature time and
The results showed that the probability of fatigue damage is very much dependent on the rail configuration and train speed Faccoli et al 30 carried out an experimental investigation to study and compare the response to cyclic loading of the high‐performance railway wheel steels The main damage phenomenon for both steels in the dry rolling
Fatigue life and residual strength can be predicted using Eq (10) and Eq (13) with the constraint of the constants depending on the experimental Stress-Life curve The fatigue studies in the literature point out to the absence of true fatigue limit for composites (Harris 2003b Montesano et al 2013)
2018-2-9Experimental investigation on the suitable pitch difference improving the fatigue strength significantly for high strength bolts and nuts Chen X Noda N -A Maruyama H Wang H Sano Y Takase Y journal or publication title International Journal of Fracture Fatigue and Wear volume 2
We present a detailed investigation of the mechanism of metro wheel polygonal wear using on-site experiments and numerical simulation More than 70% of metro wheels exhibit 6 th –8 th harmonic-order polygonal wear the excitation frequency of the polygonal wear is located in the 50–70 Hz interval at an operating speed of 65#x2013 75#x2009 km/h
The experimental measurements reveal that there is a critical load magnitude for the transition of wear performance With a load above 15 Nm the PEEK gear wear rate increases rapidly leading to a quick breakage failure whereas the gear wear rate with a torque below 15 Nm is much lower
2000-8-23An Experimental Investigation of Fretting Fatigue in Ti-6Al-4V: the Role of Contact Conditions and Microstructure T A VENKATESH B P CONNER C S LEE A E GIANNAKOPOULOS T C LINDLEY and S SURESH A systematic investigation of the fretting fatigue behavior of the titanium alloy Ti-6Al-4V in both
10 It is observed that an increase of 15 68 % in fatigue life of coated EN24 material compared to uncoated specimen REFRENCES [1] Y Q Liu Y X Wang X H Men and F H Lin "An Investigation on Piston Pin Seat Fatigue Life on The Mechanical Fatigue Experiments key engineering material Vol 25 pp 527-531 2006 7
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