Harmonic decomposition analysis of contact mechanics of bonded layered elastic solids

The paper presents an iterative method for obtaining footprint, pressure distribution, local deformation and sub-surface stress field for the contact between a rigid cylindrical indenter and an elastic flat substrate. The methodology is applicable for semi-infinite, as well as for thin or thick bond...

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Main Authors:	M. Teodorescu, Homer Rahnejat, Ramsey Gohar, Duncan Dowson
Format:	Default Article
Published:	2009
Subjects:	Mechanical engineering not elsewhere classified Layered elastic solids Sub-surface stress field Harmonic analysis Contact mechanics Mechanical Engineering not elsewhere classified
Online Access:	https://hdl.handle.net/2134/13346
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id	rr-article-9546653
record_format	Figshare
spelling	rr-article-95466532009-01-01T00:00:00Z Harmonic decomposition analysis of contact mechanics of bonded layered elastic solids M. Teodorescu (7204790) Homer Rahnejat (1247550) Ramsey Gohar (7205852) Duncan Dowson (1249929) Mechanical engineering not elsewhere classified Layered elastic solids Sub-surface stress field Harmonic analysis Contact mechanics Mechanical Engineering not elsewhere classified The paper presents an iterative method for obtaining footprint, pressure distribution, local deformation and sub-surface stress field for the contact between a rigid cylindrical indenter and an elastic flat substrate. The methodology is applicable for semi-infinite, as well as for thin or thick bonded elastic layered solids with high or low elastic moduli. All findings are in accord with the observed behaviour of hard wear resistant and soft solid lubricating coatings. It is shown that the decomposed contact pressure distribution into a series of harmonic waves induces sub-surface stress fields that decay into the depth of the solid according to their wavelengths. Consequently, conditions vis-a`-vis fatigue spalling and adhesion performance may be predicted for given thickness of layered bonded elastic solids. 2009-01-01T00:00:00Z Text Journal contribution 2134/13346 https://figshare.com/articles/journal_contribution/Harmonic_decomposition_analysis_of_contact_mechanics_of_bonded_layered_elastic_solids/9546653 CC BY-NC-ND 4.0
institution	Loughborough University
collection	Figshare
topic	Mechanical engineering not elsewhere classified Layered elastic solids Sub-surface stress field Harmonic analysis Contact mechanics Mechanical Engineering not elsewhere classified
spellingShingle	Mechanical engineering not elsewhere classified Layered elastic solids Sub-surface stress field Harmonic analysis Contact mechanics Mechanical Engineering not elsewhere classified M. Teodorescu Homer Rahnejat Ramsey Gohar Duncan Dowson Harmonic decomposition analysis of contact mechanics of bonded layered elastic solids
description	The paper presents an iterative method for obtaining footprint, pressure distribution, local deformation and sub-surface stress field for the contact between a rigid cylindrical indenter and an elastic flat substrate. The methodology is applicable for semi-infinite, as well as for thin or thick bonded elastic layered solids with high or low elastic moduli. All findings are in accord with the observed behaviour of hard wear resistant and soft solid lubricating coatings. It is shown that the decomposed contact pressure distribution into a series of harmonic waves induces sub-surface stress fields that decay into the depth of the solid according to their wavelengths. Consequently, conditions vis-a`-vis fatigue spalling and adhesion performance may be predicted for given thickness of layered bonded elastic solids.
format	Default Article
author	M. Teodorescu Homer Rahnejat Ramsey Gohar Duncan Dowson
author_facet	M. Teodorescu Homer Rahnejat Ramsey Gohar Duncan Dowson
author_sort	M. Teodorescu (7204790)
title	Harmonic decomposition analysis of contact mechanics of bonded layered elastic solids
title_short	Harmonic decomposition analysis of contact mechanics of bonded layered elastic solids
title_full	Harmonic decomposition analysis of contact mechanics of bonded layered elastic solids
title_fullStr	Harmonic decomposition analysis of contact mechanics of bonded layered elastic solids
title_full_unstemmed	Harmonic decomposition analysis of contact mechanics of bonded layered elastic solids
title_sort	harmonic decomposition analysis of contact mechanics of bonded layered elastic solids
publishDate	2009
url	https://hdl.handle.net/2134/13346
_version_	1797738469648236544

Harmonic decomposition analysis of contact mechanics of bonded layered elastic solids

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