Elasto-plastic contact of rough surfaces

Geng Liu; Jun Zhu; Lie Yu; Q. Jane Wang

doi:10.1080/10402000108982478

Elasto-plastic contact of rough surfaces

Geng Liu^*, Jun Zhu, Lie Yu, Q. Jane Wang

^*Corresponding author for this work

Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

55 Scopus citations

Abstract

An isothermal elasto-plastic asperity contact model is developed and presented in this paper, which deals with micro plastic flows of materials and the influence of the elasto-plastic deformation of materials on the behavior of contacting surfaces. The model is solved with the incremental form of a simplex-type algorithm. The von Mises yield criterion is used to determine the onset of the plastic deformation. The effectiveness and validity of the model are studied through analyzing a Hertzian contact problem. Substrate stresses are calculated and differences are observed. Furthermore, the contact pressure, real area of contact, and average gap of real rough surfaces under the elastic, elastic-perfectly-plastic, and the elasto-plastic contact conditions are numerically investigated and the results are compared.

Original language	English (US)
Pages (from-to)	437-443
Number of pages	7
Journal	Tribology Transactions
Volume	44
Issue number	3
DOIs	https://doi.org/10.1080/10402000108982478
State	Published - Jan 1 2001

Keywords

Contact of rough surfaces
Contact simulation
Elastic-plastic deformation

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Surfaces and Interfaces
Surfaces, Coatings and Films

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10.1080/10402000108982478

Cite this

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title = "Elasto-plastic contact of rough surfaces",

abstract = "An isothermal elasto-plastic asperity contact model is developed and presented in this paper, which deals with micro plastic flows of materials and the influence of the elasto-plastic deformation of materials on the behavior of contacting surfaces. The model is solved with the incremental form of a simplex-type algorithm. The von Mises yield criterion is used to determine the onset of the plastic deformation. The effectiveness and validity of the model are studied through analyzing a Hertzian contact problem. Substrate stresses are calculated and differences are observed. Furthermore, the contact pressure, real area of contact, and average gap of real rough surfaces under the elastic, elastic-perfectly-plastic, and the elasto-plastic contact conditions are numerically investigated and the results are compared.",

keywords = "Contact of rough surfaces, Contact simulation, Elastic-plastic deformation",

author = "Geng Liu and Jun Zhu and Lie Yu and Wang, {Q. Jane}",

note = "Funding Information: The project was partially supported by the Visiting Scholar Foundation of Key Lab. of Education Ministry For Modem Design and Rotor-Bearing System at Xi'an Jiaotong University. Q. W. would like to acknowledge the support from US National Science Foundation.",

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AU - Liu, Geng

AU - Zhu, Jun

AU - Yu, Lie

AU - Wang, Q. Jane

N1 - Funding Information: The project was partially supported by the Visiting Scholar Foundation of Key Lab. of Education Ministry For Modem Design and Rotor-Bearing System at Xi'an Jiaotong University. Q. W. would like to acknowledge the support from US National Science Foundation.

PY - 2001/1/1

Y1 - 2001/1/1

N2 - An isothermal elasto-plastic asperity contact model is developed and presented in this paper, which deals with micro plastic flows of materials and the influence of the elasto-plastic deformation of materials on the behavior of contacting surfaces. The model is solved with the incremental form of a simplex-type algorithm. The von Mises yield criterion is used to determine the onset of the plastic deformation. The effectiveness and validity of the model are studied through analyzing a Hertzian contact problem. Substrate stresses are calculated and differences are observed. Furthermore, the contact pressure, real area of contact, and average gap of real rough surfaces under the elastic, elastic-perfectly-plastic, and the elasto-plastic contact conditions are numerically investigated and the results are compared.

AB - An isothermal elasto-plastic asperity contact model is developed and presented in this paper, which deals with micro plastic flows of materials and the influence of the elasto-plastic deformation of materials on the behavior of contacting surfaces. The model is solved with the incremental form of a simplex-type algorithm. The von Mises yield criterion is used to determine the onset of the plastic deformation. The effectiveness and validity of the model are studied through analyzing a Hertzian contact problem. Substrate stresses are calculated and differences are observed. Furthermore, the contact pressure, real area of contact, and average gap of real rough surfaces under the elastic, elastic-perfectly-plastic, and the elasto-plastic contact conditions are numerically investigated and the results are compared.

KW - Contact of rough surfaces

KW - Contact simulation

KW - Elastic-plastic deformation

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Elasto-plastic contact of rough surfaces

Abstract

Keywords

ASJC Scopus subject areas

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