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contributor authorC. Liu
contributor authorB. Paul
date accessioned2017-05-08T23:31:05Z
date available2017-05-08T23:31:05Z
date copyrightJuly, 1989
date issued1989
identifier issn0742-4787
identifier otherJOTRE9-28477#445_1.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/106027
description abstractGiven the contact region between two bodies, the normal pressure distribution over the contact region, and the coefficient of friction, we seek to find all combinations of tangential forces and twisting moment (about the normal to the contact surface) for which fully developed sliding impends. As part of the solution we must determine the distribution of the surface tractions (shear stresses) and the location of the instantaneous center (IC) of the impending motion. New closed form solutions of the stated problem are found for circular contact patches with pressure distributions corresponding to (a): a flat stamp; and (b): elastic spheroids with Hertzian pressure distributions. For contact regions other than circular, no closed form solutions are known. We have developed numerical procedures to solve for arbitrary contact patches, with arbitrary distributions of normal pressure, and present carpet plots of tangential force components (Fx , Fy ) and IC coordinates for the following cases: flat ellipsoidal stamps; ellipsoidal indenters (Hertzian pressure); and a non-Hertzian, nonelliptical contact of a rail and wheel. Level curves of twisting moment Mz versus tangential force components are provided. Given any two of the three quantities (Fx , Fy , Mz ), the algorithms and the plots in this paper make it possible and convenient to find the remaining force or moment which will cause gross sliding to impend, for virtually arbitrary contact regions and arbitrary pressure distributions.
publisherThe American Society of Mechanical Engineers (ASME)
titleFully Developed Sliding of Rough Surfaces
typeJournal Paper
journal volume111
journal issue3
journal titleJournal of Tribology
identifier doi10.1115/1.3261945
journal fristpage445
journal lastpage451
identifier eissn1528-8897
keywordsForce
keywordsPressure
keywordsFriction
keywordsMotion
keywordsSurface roughness
keywordsStress
keywordsShear (Mechanics)
keywordsAlgorithms
keywordsRails AND Wheels
treeJournal of Tribology:;1989:;volume( 111 ):;issue: 003
contenttypeFulltext


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