NickelMaghrebV1, PascalFrancis, Corpus, bibRecord, 000428

Stiffness and deformation of asperities in a rough contact

Identifieur interne : 000428 ( PascalFrancis/Corpus ); précédent : 000427; suivant : 000429

Stiffness and deformation of asperities in a rough contact

Auteurs : A. Haïahem ; L. Flamand

Source :

RBID : Pascal:00-0412375

Descripteurs français

Pascal (Inist)
- Tribologie, Contrainte contact, Rugosité, Surface rugueuse, Inélasticité, Elastoplasticité, Nickel, Etude expérimentale, Appareillage essai, Microscopie, Interférométrie optique.

English descriptors

KwdEn :
- Contact stress, Elastoplasticity, Experimental study, Inelasticity, Microscopy, Nickel, Optical interferometry, Rough surface, Roughness, Testing equipment, Tribology.

Abstract

In rough contacts the load is transmitted through the micro-contacts generated the interactions between the asperities. These micro-contacts are submitted by pressures and important stresses appear in the superficial layers close to the surface which lead to plastic deformation of the asperities. In our experimental work, we study the contact between a rough surface and a flat supphire. The samples used are Nickel electroformaging with quasi-sinusoïdal roughness. The elastic and plastic parts of the deformation process of the roughness are determined, the experimental apparatus is composed of the loading system and an interferometric microscope in order to measure deformations. The values of the elastic deformation are compared to the theoretical results and the plastic ones with those obtained by using a profilometer coupled with the computer. Finally we deduce the asperity stiffness which are compared to those of the bodies. The results show the primary loading. The interacting asperities are loaded as well as the bodies. Then the elastic deformation and the stiffness are the main functions of the roughness' slope ( ratio of the asperity height to the wavelength (R_t/ λ)). The asperity stiffness is very high compared to those of the bodies.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

A08	`01`	`1`	`ENG`	`@1 Stiffness and deformation of asperities in a rough contact`
A09	`01`	`1`	`ENG`	`@1 Computational methods in contact mechanics IV : Stuttgart, July 1999`
A11	`01`	`1`		`@1 HAÏAHEM (A.)`
A11	`02`	`1`		`@1 FLAMAND (L.)`
A12	`01`	`1`		`@1 GAUL (L.) @9 ed.`
A12	`02`	`1`		`@1 BREBBIA (C.A.) @9 ed.`
A14	`01`			`@1 Institut ae mécanique université de Annaba, BP 12 @2 Annaba 23000 @3 DZA @Z 1 aut.`
A14	`02`			`@1 Laboratoire de mécanique des contacts INSA de Lyon @2 69621 Villeurbanne @3 FRA @Z 2 aut.`
A20				`@1 59-68`
A21				`@1 1999`
A23	`01`			`@0 ENG`
A25	`01`			`@1 WIT Press @2 Southampton`
A26	`01`			`@0 1-85312-694-2`
A30	`01`	`1`	`ENG`	`@1 International conference on computational methods in contact mechanics @2 4 @3 Stuttgart DEU @4 1999-07`
A43	`01`			`@1 INIST @2 Y 32848 @5 354000090085750060`
A44				`@0 0000 @1 © 2000 INIST-CNRS. All rights reserved.`
A45				`@0 13 ref.`
A47	`01`	`1`		`@0 00-0412375`
A60				`@1 C`
A61				`@0 A`
A66	`01`			`@0 GBR`
C01	`01`		`ENG`	@0 In rough contacts the load is transmitted through the micro-contacts generated the interactions between the asperities. These micro-contacts are submitted by pressures and important stresses appear in the superficial layers close to the surface which lead to plastic deformation of the asperities. In our experimental work, we study the contact between a rough surface and a flat supphire. The samples used are Nickel electroformaging with quasi-sinusoïdal roughness. The elastic and plastic parts of the deformation process of the roughness are determined, the experimental apparatus is composed of the loading system and an interferometric microscope in order to measure deformations. The values of the elastic deformation are compared to the theoretical results and the plastic ones with those obtained by using a profilometer coupled with the computer. Finally we deduce the asperity stiffness which are compared to those of the bodies. The results show the primary loading. The interacting asperities are loaded as well as the bodies. Then the elastic deformation and the stiffness are the main functions of the roughness' slope ( ratio of the asperity height to the wavelength (R_t/ λ)). The asperity stiffness is very high compared to those of the bodies.
C02	`01`	`X`		`@0 001D12D02`
C02	`02`	`X`		`@0 001D11G06`
C02	`03`	`X`		`@0 240`
C03	`01`	`X`	`FRE`	`@0 Tribologie @5 01`
C03	`01`	`X`	`ENG`	`@0 Tribology @5 01`
C03	`01`	`X`	`GER`	`@0 Tribologie @5 01`
C03	`01`	`X`	`SPA`	`@0 Tribología @5 01`
C03	`02`	`X`	`FRE`	`@0 Contrainte contact @5 02`
C03	`02`	`X`	`ENG`	`@0 Contact stress @5 02`
C03	`02`	`X`	`SPA`	`@0 Tensión contacto @5 02`
C03	`03`	`X`	`FRE`	`@0 Rugosité @5 03`
C03	`03`	`X`	`ENG`	`@0 Roughness @5 03`
C03	`03`	`X`	`GER`	`@0 Rauhigkeit @5 03`
C03	`03`	`X`	`SPA`	`@0 Rugosidad @5 03`
C03	`04`	`X`	`FRE`	`@0 Surface rugueuse @5 04`
C03	`04`	`X`	`ENG`	`@0 Rough surface @5 04`
C03	`04`	`X`	`GER`	`@0 Rauhe Oberflaeche @5 04`
C03	`04`	`X`	`SPA`	`@0 Superficie rugosa @5 04`
C03	`05`	`X`	`FRE`	`@0 Inélasticité @5 07`
C03	`05`	`X`	`ENG`	`@0 Inelasticity @5 07`
C03	`05`	`X`	`SPA`	`@0 Inelasticidad @5 07`
C03	`06`	`X`	`FRE`	`@0 Elastoplasticité @5 08`
C03	`06`	`X`	`ENG`	`@0 Elastoplasticity @5 08`
C03	`06`	`X`	`SPA`	`@0 Elastoplasticidad @5 08`
C03	`07`	`X`	`FRE`	`@0 Nickel @2 NC @2 FX @5 12`
C03	`07`	`X`	`ENG`	`@0 Nickel @2 NC @2 FX @5 12`
C03	`07`	`X`	`GER`	`@0 Nickel @2 NC @2 FX @5 12`
C03	`07`	`X`	`SPA`	`@0 Niquel @2 NC @2 FX @5 12`
C03	`08`	`X`	`FRE`	`@0 Etude expérimentale @5 17`
C03	`08`	`X`	`ENG`	`@0 Experimental study @5 17`
C03	`08`	`X`	`GER`	`@0 Experimentelle Untersuchung @5 17`
C03	`08`	`X`	`SPA`	`@0 Estudio experimental @5 17`
C03	`09`	`X`	`FRE`	`@0 Appareillage essai @5 18`
C03	`09`	`X`	`ENG`	`@0 Testing equipment @5 18`
C03	`09`	`X`	`SPA`	`@0 Aparato ensayo @5 18`
C03	`10`	`X`	`FRE`	`@0 Microscopie @5 20`
C03	`10`	`X`	`ENG`	`@0 Microscopy @5 20`
C03	`10`	`X`	`GER`	`@0 Mikroskopie @5 20`
C03	`10`	`X`	`SPA`	`@0 Microscopía @5 20`
C03	`11`	`X`	`FRE`	`@0 Interférométrie optique @5 21`
C03	`11`	`X`	`ENG`	`@0 Optical interferometry @5 21`
C03	`11`	`X`	`SPA`	`@0 Interferometría óptica @5 21`
N21				`@1 276`

Format Inist (serveur)

NO :	PASCAL 00-0412375 INIST
ET :	Stiffness and deformation of asperities in a rough contact
AU :	HAÏAHEM (A.); FLAMAND (L.); GAUL (L.); BREBBIA (C.A.)
AF :	Institut ae mécanique université de Annaba, BP 12/Annaba 23000/Algérie (1 aut.); Laboratoire de mécanique des contacts INSA de Lyon/69621 Villeurbanne/France (2 aut.)
DT :	Congrès; Niveau analytique
SO :	International conference on computational methods in contact mechanics/4/1999-07/Stuttgart DEU; Royaume-Uni; Southampton: WIT Press; Da. 1999; Pp. 59-68; ISBN 1-85312-694-2
LA :	Anglais
EA :	In rough contacts the load is transmitted through the micro-contacts generated the interactions between the asperities. These micro-contacts are submitted by pressures and important stresses appear in the superficial layers close to the surface which lead to plastic deformation of the asperities. In our experimental work, we study the contact between a rough surface and a flat supphire. The samples used are Nickel electroformaging with quasi-sinusoïdal roughness. The elastic and plastic parts of the deformation process of the roughness are determined, the experimental apparatus is composed of the loading system and an interferometric microscope in order to measure deformations. The values of the elastic deformation are compared to the theoretical results and the plastic ones with those obtained by using a profilometer coupled with the computer. Finally we deduce the asperity stiffness which are compared to those of the bodies. The results show the primary loading. The interacting asperities are loaded as well as the bodies. Then the elastic deformation and the stiffness are the main functions of the roughness' slope ( ratio of the asperity height to the wavelength (R_t/ λ)). The asperity stiffness is very high compared to those of the bodies.
CC :	001D12D02; 001D11G06; 240
FD :	Tribologie; Contrainte contact; Rugosité; Surface rugueuse; Inélasticité; Elastoplasticité; Nickel; Etude expérimentale; Appareillage essai; Microscopie; Interférométrie optique
ED :	Tribology; Contact stress; Roughness; Rough surface; Inelasticity; Elastoplasticity; Nickel; Experimental study; Testing equipment; Microscopy; Optical interferometry
GD :	Tribologie; Rauhigkeit; Rauhe Oberflaeche; Nickel; Experimentelle Untersuchung; Mikroskopie
SD :	Tribología; Tensión contacto; Rugosidad; Superficie rugosa; Inelasticidad; Elastoplasticidad; Niquel; Estudio experimental; Aparato ensayo; Microscopía; Interferometría óptica
LO :	INIST-Y 32848.354000090085750060
ID :	00-0412375

Links to Exploration step

Pascal:00-0412375

Le document en format XML

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<front><div type="abstract" xml:lang="en">In rough contacts the load is transmitted through the micro-contacts generated the interactions between the asperities. These micro-contacts are submitted by pressures and important stresses appear in the superficial layers close to the surface which lead to plastic deformation of the asperities. In our experimental work, we study the contact between a rough surface and a flat supphire. The samples used are Nickel electroformaging with quasi-sinusoïdal roughness. The elastic and plastic parts of the deformation process of the roughness are determined, the experimental apparatus is composed of the loading system and an interferometric microscope in order to measure deformations. The values of the elastic deformation are compared to the theoretical results and the plastic ones with those obtained by using a profilometer coupled with the computer. Finally we deduce the asperity stiffness which are compared to those of the bodies. The results show the primary loading. The interacting asperities are loaded as well as the bodies. Then the elastic deformation and the stiffness are the main functions of the roughness' slope ( ratio of the asperity height to the wavelength (R<sub>t</sub>
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<fC01 i1="01" l="ENG"><s0>In rough contacts the load is transmitted through the micro-contacts generated the interactions between the asperities. These micro-contacts are submitted by pressures and important stresses appear in the superficial layers close to the surface which lead to plastic deformation of the asperities. In our experimental work, we study the contact between a rough surface and a flat supphire. The samples used are Nickel electroformaging with quasi-sinusoïdal roughness. The elastic and plastic parts of the deformation process of the roughness are determined, the experimental apparatus is composed of the loading system and an interferometric microscope in order to measure deformations. The values of the elastic deformation are compared to the theoretical results and the plastic ones with those obtained by using a profilometer coupled with the computer. Finally we deduce the asperity stiffness which are compared to those of the bodies. The results show the primary loading. The interacting asperities are loaded as well as the bodies. Then the elastic deformation and the stiffness are the main functions of the roughness' slope ( ratio of the asperity height to the wavelength (R<sub>t</sub>
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<s5>02</s5>
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<s5>03</s5>
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<fC03 i1="03" i2="X" l="ENG"><s0>Roughness</s0>
<s5>03</s5>
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<fC03 i1="03" i2="X" l="GER"><s0>Rauhigkeit</s0>
<s5>03</s5>
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<fC03 i1="03" i2="X" l="SPA"><s0>Rugosidad</s0>
<s5>03</s5>
</fC03>
<fC03 i1="04" i2="X" l="FRE"><s0>Surface rugueuse</s0>
<s5>04</s5>
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<s5>04</s5>
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<fC03 i1="04" i2="X" l="GER"><s0>Rauhe Oberflaeche</s0>
<s5>04</s5>
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<fC03 i1="04" i2="X" l="SPA"><s0>Superficie rugosa</s0>
<s5>04</s5>
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<s5>08</s5>
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<fC03 i1="06" i2="X" l="SPA"><s0>Elastoplasticidad</s0>
<s5>08</s5>
</fC03>
<fC03 i1="07" i2="X" l="FRE"><s0>Nickel</s0>
<s2>NC</s2>
<s2>FX</s2>
<s5>12</s5>
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<fC03 i1="07" i2="X" l="ENG"><s0>Nickel</s0>
<s2>NC</s2>
<s2>FX</s2>
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<fC03 i1="07" i2="X" l="GER"><s0>Nickel</s0>
<s2>NC</s2>
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<fC03 i1="07" i2="X" l="SPA"><s0>Niquel</s0>
<s2>NC</s2>
<s2>FX</s2>
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<s5>18</s5>
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<s5>18</s5>
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<s5>20</s5>
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<s5>20</s5>
</fC03>
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<s5>20</s5>
</fC03>
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<s5>20</s5>
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<fC03 i1="11" i2="X" l="FRE"><s0>Interférométrie optique</s0>
<s5>21</s5>
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<fC03 i1="11" i2="X" l="ENG"><s0>Optical interferometry</s0>
<s5>21</s5>
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<s5>21</s5>
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<fN21><s1>276</s1>
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</standard>
<server><NO>PASCAL 00-0412375 INIST</NO>
<ET>Stiffness and deformation of asperities in a rough contact</ET>
<AU>HAÏAHEM (A.); FLAMAND (L.); GAUL (L.); BREBBIA (C.A.)</AU>
<AF>Institut ae mécanique université de Annaba, BP 12/Annaba 23000/Algérie (1 aut.); Laboratoire de mécanique des contacts INSA de Lyon/69621 Villeurbanne/France (2 aut.)</AF>
<DT>Congrès; Niveau analytique</DT>
<SO>International conference on computational methods in contact mechanics/4/1999-07/Stuttgart DEU; Royaume-Uni; Southampton: WIT Press; Da. 1999; Pp. 59-68; ISBN 1-85312-694-2</SO>
<LA>Anglais</LA>
<EA>In rough contacts the load is transmitted through the micro-contacts generated the interactions between the asperities. These micro-contacts are submitted by pressures and important stresses appear in the superficial layers close to the surface which lead to plastic deformation of the asperities. In our experimental work, we study the contact between a rough surface and a flat supphire. The samples used are Nickel electroformaging with quasi-sinusoïdal roughness. The elastic and plastic parts of the deformation process of the roughness are determined, the experimental apparatus is composed of the loading system and an interferometric microscope in order to measure deformations. The values of the elastic deformation are compared to the theoretical results and the plastic ones with those obtained by using a profilometer coupled with the computer. Finally we deduce the asperity stiffness which are compared to those of the bodies. The results show the primary loading. The interacting asperities are loaded as well as the bodies. Then the elastic deformation and the stiffness are the main functions of the roughness' slope ( ratio of the asperity height to the wavelength (R<sub>t</sub>
/ λ)). The asperity stiffness is very high compared to those of the bodies.</EA>
<CC>001D12D02; 001D11G06; 240</CC>
<FD>Tribologie; Contrainte contact; Rugosité; Surface rugueuse; Inélasticité; Elastoplasticité; Nickel; Etude expérimentale; Appareillage essai; Microscopie; Interférométrie optique</FD>
<ED>Tribology; Contact stress; Roughness; Rough surface; Inelasticity; Elastoplasticity; Nickel; Experimental study; Testing equipment; Microscopy; Optical interferometry</ED>
<GD>Tribologie; Rauhigkeit; Rauhe Oberflaeche; Nickel; Experimentelle Untersuchung; Mikroskopie</GD>
<SD>Tribología; Tensión contacto; Rugosidad; Superficie rugosa; Inelasticidad; Elastoplasticidad; Niquel; Estudio experimental; Aparato ensayo; Microscopía; Interferometría óptica</SD>
<LO>INIST-Y 32848.354000090085750060</LO>
<ID>00-0412375</ID>
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Stiffness and deformation of asperities in a rough contact

Stiffness and deformation of asperities in a rough contact

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