Rolling contact
Effects of surface defects on rolling contact fatigue of 60/40 brass
... on rolling contact fatigue of 60/40 brass under a maximum contact pressure of 600 MPa and a slide-roll ratio of -1% was undertaken on a twin-disc rolling-sliding test ...surface contact ...
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Numerical Modeling Rolling Contact Problem and Elasticity Deformation of Rolling Die under Hot Milling
... in contact even their motions not independent. Modeling of rolling die contact with slab primarily needs to describe the Tribology of contact ...of rolling contact how a ...
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Rolling contact fatigue testing of peek based composites
... Abstract. Rolling contact fatigue phenomenon was investigated on unfilled PEEK and on three different PEEK composites: 10% carbon micro-fiber, graphite and PTFE filled matrix, 30% carbon micro-fiber filled ...
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Investigation of the Relation between Rolling Contact Fatigue Property and Microstructure on the Surface Layer of D2 Wheel Steel
... the rolling contact fatigue experiment under the condition of the lubricating oil, this article investigated the relation between contact fatigue property and microstructure on the surface layer of ...
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A note on Merwin's measurements of forward flow in rolling contact
... This model does not correspond to any mathematically correct plasticity model, neither isotropic nor kinematic hardening, but will give an estimate on the number of cy- cles where the transient effect of the cyclic ...
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On the Ekberg, Kabo and Andersson calculation of the Dang Van high cycle fatigue limit for rolling contact fatigue
... It should first be noted that the model, referred to by Ciavarella and Maitournam was developed for the predic- tion of rolling contact fatigue (RCF) of railway wheels. In the letter to the editor, ...
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Novel implant design of the proximal interphalangeal joint using an optimized rolling contact joint mechanism
... The field of robotic arm applications has recently con- tributed to the development of implant surfaces using a rolling contact joint (RCJ) mechanism [7, 8]. The RCJ mechanism is defined as a type of ...
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Visualisation and modelling to understand rail rolling contact fatigue cracks in three-dimensions
... on rolling contact fatigue (RCF) crack shape and propagation characteristics in rails removed from service, where such cracks are angled to the rail ...a contact approaching a crack angled to the ...
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Influence of 2D versus 3D Modeling on the Fatigue Limit Calculations of Bearing Steels during Rolling Contact Fatigue
... Previous analytical/computational studies on the estimation of fatigue limit of bearing steels under Rolling Contact Fatigue (RCF) were based on the concept of absence of micro-plasticity near inclusions. ...
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Ultrasonic roll bite measurements in cold rolling: Contact length and strip thickness
... the rolling-stand ...solid-to-solid contact between the asperities of the rolls and the strip as well as solid-to-fluid contact ...the rolling load and therefore the roll ...
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Responses of alternating current field measurement (ACFM) to rolling contact fatigue (RCF) cracks in railway rails
... Electromagnetic acoustic transducers (EMATs) have been developed based on the principle that a Lorentz force generated in a magnetic field has the ability to produce ultrasonic waves in materials. It is a ...
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Simulation of Railroad Crack Growth Life under the Influence of Combination of Mechanical Contact and Thermal Loads
... One of the most important issues in railroad wheels is the residual stresses. It is desirable to produce less residual stresses when possible and to decrease the remaining residual stresses in the wheels. The aim of this ...
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Investigation of pure sliding and sliding/rolling contacts in a DLC/Cast iron system when lubricated in oils containing MoDTC-Type friction modifier
... The Stribeck curve evaluation gives an indication of the tribofilm build-up and the time to reach steady state conditions. Fig. 4 and 5 show Stribeck curves for each oil as a function of time and mean speed under the ...
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A rolling ball device for producing surface fatigue and its application to dental materials
... a rolling ruby ...the rolling ball ...point contact on the ‘‘V’’ groove rotor and one on the specimen) ensure that rolling ...is rolling and not ...pure rolling, the ball takes ...
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Shakedown analysis for rolling and sliding contact problems
... the contact area and allowed a region of the surface to slide forward in the direction of travel of the rolling ...Hertzian contact pressure due to a normal load P is applied to a circular or ...
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Dependence of Shape and Size of Contact Area of Load and Material Properties
... the rolling contact described in the article takes into account the influence of the plastic material hardening, because the critical load limit is determined by the increase the plastic defor ...The ...
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The effects of surface defects on the fatigue of water and oil lubricated contacts
... the contact surfaces under rolling contact fatigue tests, was strongly influenced by the load condition and the frictional ...of contact loading by comparing the observed spread angle of a ...
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Finite Element Analysis of Rail Wheel Interaction
... wheel-rail contact analysis based on Rolling contact ...by rolling contact fatigue and surface defects, while only 5% were due to flange wear ...Continuum rolling contact ...
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Influence of Surface Properties Modified with Fine Shot Peening on Scuffing
... Recently, gears of high strength, reliability, and surface-damage-resistant un- der severe service conditions are required to achieve the weight saving and downsizing of a product. For the high-speed condition in ...
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Paper 03-2018-2
... of rolling contact mechanics is necessary for a variety of calender geometries (Kanth et ...in contact was firstly given by Hertz (Johnson ...frictionless contact between isotropic flexible ...
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