Journal ArticleDOI
Contact and Rubbing of Flat Surfaces
TLDR
In this article, the authors compared the deduced dependence of the experimental observables on the load with the experimental evidence and concluded that the most realistic model is one in which increasing the load increases both the number and size of the contact areas.Abstract:
The interpretation of certain phenomena occuring at nominally flat surfaces in stationary or sliding contact is dependent on the assumed distribution of the real area of contact between the surfaces. Since there is little direct evidence on which to base an estimate of this distribution, the approach used is to set up a simple model and compare the deduced theory (e.g., the deduced dependence of the experimental observables on the load) with the experimental evidence. The main conclusions are as follows. (a) The electrical contact resistance depends on the model used to represent the surfaces; the most realistic model is one in which increasing the load increases both the number and size of the contact areas. (b) In general, mechanical wear should also depend on the model. However, in wear experiments showing the simplest behavior, the wear rate is proportional to the load, and these results can be explained by assuming removal of lumps at contact areas formed by plastic deformation; moreover, this particular deduction is independent of the assumed model. This suggests that a basic assumption of previous theories, that increasing the load increases the number of contacts without affecting their average size, is redundant.read more
Citations
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Journal ArticleDOI
Sliding friction and wear of structural ceramics
TL;DR: In this article, a study was made of the unlubricated sliding friction and wear behavior of various like and unlike combinations of four materials -sinteredα-SiC, graphitized SiC, siliconized SiC and a Y2O3-stabilized ZrO2 -in air at room temperature under dynamic conditions approximating the motion of a piston in an idling automotive engine.
Journal ArticleDOI
Wear behavior of nanocrystalline structured magnesium alloy induced by surface mechanical attrition treatment
TL;DR: In this article, a comparison between micro-crystalline (MC) and nanocrystalline structured Mg alloys in wear behavior was performed, which showed that the NC structured layer induced by SMAT exhibits worse wear resistance than MC alloy, which is related to the variation of wear mechanism under different sliding speeds.
Journal ArticleDOI
Mechanical Performance of glass/epoxy composites enhanced by micro- and nanosized aluminum particles:
TL;DR: In this article, the effects of using nanometer and micrometer-sized aluminum particles in glass fiber reinforcement epoxy composites have been studied, and the study evaluates the mechanical proper tie...
Journal ArticleDOI
Computational prediction and experimental validation of revolute joint clearance wear in the low-velocity planar mechanism
Lai Xiongming,Lai Xiongming,Huang He,Lai Qinfang,Cheng Wang,Yang Jianhong,Zhang Yong,Fang Huaiying,Shuirong Liao +8 more
TL;DR: In this paper, an efficient iterative prediction method for joint clearance wear evolving in the multibody dynamic system in is proposed based on the Archard's wear model, which can provide high prediction accuracy when the increments of the wear depth of revolute joints are not big.
Journal ArticleDOI
Sliding distance, contact pressure and wear in sheet metal stamping
TL;DR: In this article, a method to numerically quantify the contact sliding distance experienced during a typical sheet metal stamping process is proposed, which can be applied as a general approach to study any other two-body sliding contact situations.
References
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Book
The friction and lubrication of solids
Frank Philip Bowden,David Tabor +1 more
TL;DR: Tabor and Bowden as mentioned in this paper reviewed the many advances made in this field during the past 36 years and outlined the achievements of Frank Philip Bowden, and reviewed the behavior of non-metals, especially elastomers; elastohydrodynamic lubrication; and the wear of sliding surfaces.
Journal ArticleDOI
The Nature of the Static and Kinetic Coefficients of Friction
TL;DR: In this article, the transition between static and kinetic conditions when stationary metal surfaces are set into motion is determined by measuring the energy that has to be given to one of the bodies to start it moving.
Journal ArticleDOI
On the Empirical Law of Adhesive Wear
J. T. Burwell,C. D. Strang +1 more
TL;DR: In this paper, the wear of rubbing steel surfaces as a function of load, distance of travel, and hardness under controlled conditions was measured and the effect of all factors except adhesion was analyzed.
Journal ArticleDOI
Metallic transfer between sliding metals: an autoradiographic study
Ernest Rabinowicz,David Tabor +1 more
TL;DR: In this article, a study of the friction and metallic transfer between sliding metal surfaces in the absence and in the presence of boundary lubricant films has been conducted, showing that the metallic transfer consists of a relatively small number of discrete particles and that the main function of a boundary lube is to reduce the amount of metallic interaction.
Journal ArticleDOI
Deformation of metals in static and in sliding contact
TL;DR: In this article, a detailed examination of the surface damage produced during sliding shows that metallic junctions are formed and sheared during the sliding process, and it is suggested that they are produced by a cold welding of the surfaces as a result of the high localized pressures developed at the points of real contact.