The pressure to cause complete contact between elastic—plastic sinusoidal surfaces

This work examines the average pressure required to cause complete contact between sinusoidal shaped surfaces deforming elastically and plastically. Complete contact is defined as when there are no gaps remaining between the surfaces. The material of the surface is modelled as being elastic—perfectl...

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Published in:Proceedings of the Institution of Mechanical Engineers. Part J, Journal of engineering tribology Journal of engineering tribology, 2008-11, Vol.222 (7), p.857-863
Main Authors: Jackson, R L, Krithivasan, V, Wilson, W E
Format: Article
Language:English
Subjects:
Alloys
Contact pressure
Deformation mechanisms
Elastic deformation
Elastoplasticity
Engineers
Finite element analysis
Finite element method
Hardness
Mathematical analysis
Mathematical models
Mechanical engineering
Strength
Surface roughness
Tribology
Yield strength
Yield stress
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cited_by cdi_FETCH-LOGICAL-c393t-9744489b4f27bf99d246e6c8cc0aa60cf53a2a09134cc670a1018ca19be6207a3
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container_issue 7
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container_title Proceedings of the Institution of Mechanical Engineers. Part J, Journal of engineering tribology
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creator Jackson, R L
Krithivasan, V
Wilson, W E
description This work examines the average pressure required to cause complete contact between sinusoidal shaped surfaces deforming elastically and plastically. Complete contact is defined as when there are no gaps remaining between the surfaces. The material of the surface is modelled as being elastic—perfectly plastic. This work confirms the results of a recent finite-element ana-lysis using a new semi-analytical model. The results suggest that the pressure required to cause complete contact between surfaces can be much higher than the yield strength or hardness of the surface (in some cases 15 times the yield strength or more). This is because it appears that as the surfaces near complete contact, they begin to act again like an elastic contact. The critical amplitude of a sinusoidal surface below which it will deform entirely in the elastic regime from initial to complete contact is also derived.
doi_str_mv 10.1243/13506501JET429
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source SAGE IMechE Complete Collection; Sage Journals Online
subjects Alloys
Contact pressure
Deformation mechanisms
Elastic deformation
Elastoplasticity
Engineers
Finite element analysis
Finite element method
Hardness
Mathematical analysis
Mathematical models
Mechanical engineering
Strength
Surface roughness
Tribology
Yield strength
Yield stress
title The pressure to cause complete contact between elastic—plastic sinusoidal surfaces
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