A Stochastic Analysis of Plastic Area on Rough Surface Contact in Relation with Transition from Mild to Severe Wear

Burwell and Strang supposed that the transition from mild to severe wear mode would occur when the total area of plastic regions on a soft surface contacting with a hard surface reached to the apparent contact area. This paper describes a modification of the theory in the previous paper which made a...

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Autores principales: Tsunamitsu Nakahara, Tomohisa Tanaka
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Lenguaje:EN
Publicado: Japanese Society of Tribologists 2013
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Acceso en línea:https://doaj.org/article/277a385044e44b8e979045bc72912af0
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spelling oai:doaj.org-article:277a385044e44b8e979045bc72912af02021-11-05T09:24:31ZA Stochastic Analysis of Plastic Area on Rough Surface Contact in Relation with Transition from Mild to Severe Wear1881-219810.2474/trol.8.128https://doaj.org/article/277a385044e44b8e979045bc72912af02013-01-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/trol/8/1/8_128/_pdf/-char/enhttps://doaj.org/toc/1881-2198Burwell and Strang supposed that the transition from mild to severe wear mode would occur when the total area of plastic regions on a soft surface contacting with a hard surface reached to the apparent contact area. This paper describes a modification of the theory in the previous paper which made approximately a stochastic analysis of the total area of plastic regions on a flat surface contacting with a rough surface employing the roughness model by Greenwood-Williamson (GW) and Johnson' cavity model to obtain the plastic area surrounding an asperity contact. The analytical results show that the contact severity defined by the ratio of the total plastic area to the nominal contact area is affected only by the ratio of the standard deviation of roughness summit heights to the mean radius of the summits which relates to the plasticity index defined by GW and as a result this supports the experimental results on the transition load for wear mode by Hirst and Hollander. In addition, the effect of temperature characteristics of materials hardness on the contact severity is shown and it can be seen that the softening temperature is significant under operating condition of high pV (pressure-velocity) value.Tsunamitsu NakaharaTomohisa TanakaJapanese Society of Tribologistsarticletribologycontact mechanicsrough surfaceplastic area, seizurematerial softeningtemperaturePhysicsQC1-999Engineering (General). Civil engineering (General)TA1-2040Mechanical engineering and machineryTJ1-1570ChemistryQD1-999ENTribology Online, Vol 8, Iss 1, Pp 128-134 (2013)
institution DOAJ
collection DOAJ
language EN
topic tribology
contact mechanics
rough surface
plastic area, seizure
material softening
temperature
Physics
QC1-999
Engineering (General). Civil engineering (General)
TA1-2040
Mechanical engineering and machinery
TJ1-1570
Chemistry
QD1-999
spellingShingle tribology
contact mechanics
rough surface
plastic area, seizure
material softening
temperature
Physics
QC1-999
Engineering (General). Civil engineering (General)
TA1-2040
Mechanical engineering and machinery
TJ1-1570
Chemistry
QD1-999
Tsunamitsu Nakahara
Tomohisa Tanaka
A Stochastic Analysis of Plastic Area on Rough Surface Contact in Relation with Transition from Mild to Severe Wear
description Burwell and Strang supposed that the transition from mild to severe wear mode would occur when the total area of plastic regions on a soft surface contacting with a hard surface reached to the apparent contact area. This paper describes a modification of the theory in the previous paper which made approximately a stochastic analysis of the total area of plastic regions on a flat surface contacting with a rough surface employing the roughness model by Greenwood-Williamson (GW) and Johnson' cavity model to obtain the plastic area surrounding an asperity contact. The analytical results show that the contact severity defined by the ratio of the total plastic area to the nominal contact area is affected only by the ratio of the standard deviation of roughness summit heights to the mean radius of the summits which relates to the plasticity index defined by GW and as a result this supports the experimental results on the transition load for wear mode by Hirst and Hollander. In addition, the effect of temperature characteristics of materials hardness on the contact severity is shown and it can be seen that the softening temperature is significant under operating condition of high pV (pressure-velocity) value.
format article
author Tsunamitsu Nakahara
Tomohisa Tanaka
author_facet Tsunamitsu Nakahara
Tomohisa Tanaka
author_sort Tsunamitsu Nakahara
title A Stochastic Analysis of Plastic Area on Rough Surface Contact in Relation with Transition from Mild to Severe Wear
title_short A Stochastic Analysis of Plastic Area on Rough Surface Contact in Relation with Transition from Mild to Severe Wear
title_full A Stochastic Analysis of Plastic Area on Rough Surface Contact in Relation with Transition from Mild to Severe Wear
title_fullStr A Stochastic Analysis of Plastic Area on Rough Surface Contact in Relation with Transition from Mild to Severe Wear
title_full_unstemmed A Stochastic Analysis of Plastic Area on Rough Surface Contact in Relation with Transition from Mild to Severe Wear
title_sort stochastic analysis of plastic area on rough surface contact in relation with transition from mild to severe wear
publisher Japanese Society of Tribologists
publishDate 2013
url https://doaj.org/article/277a385044e44b8e979045bc72912af0
work_keys_str_mv AT tsunamitsunakahara astochasticanalysisofplasticareaonroughsurfacecontactinrelationwithtransitionfrommildtoseverewear
AT tomohisatanaka astochasticanalysisofplasticareaonroughsurfacecontactinrelationwithtransitionfrommildtoseverewear
AT tsunamitsunakahara stochasticanalysisofplasticareaonroughsurfacecontactinrelationwithtransitionfrommildtoseverewear
AT tomohisatanaka stochasticanalysisofplasticareaonroughsurfacecontactinrelationwithtransitionfrommildtoseverewear
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