Elasto-plastic indentation of a half-space by a rigid sphere under normal and torque loading

Pengyang Li; Zhanjiang Wang; Xiaoyong Li; Xiaoqing Jin; W. Wayne Chen; Yan Li; Q. Jane Wang

doi:10.1016/j.triboint.2013.02.015

Elasto-plastic indentation of a half-space by a rigid sphere under normal and torque loading

Pengyang Li^*, Zhanjiang Wang, Xiaoyong Li, Xiaoqing Jin, W. Wayne Chen, Yan Li, Q. Jane Wang

^*Corresponding author for this work

Mechanical Engineering

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

14 Scopus citations

Abstract

This work presents a numerical study of a spinning rigid sphere pressed against an elasto-plastic half space under combined normal and torque loading. The von Mises stresses and equivalent plastic strain under different torques are investigated. Results show that the torque shifts the maximum von Mises stress and plastic region in the half space closer to the surface at larger friction coefficient. An empirical formula to predict the contact area is suggested. The evolution of the plastic region in the half space is further examined. The region shows more complex shapes than those only under a normal load.

Original language	English (US)
Pages (from-to)	141-148
Number of pages	8
Journal	Tribology International
Volume	62
DOIs	https://doi.org/10.1016/j.triboint.2013.02.015
State	Published - 2013

Funding

The authors would like to thank the support of the National Key Basic Research Program of China ( 2009CB724406 ), National Science Foundation of China ( 51275407 , 51105305 ), Shannxi Provincial Education Department Research Program of China ( 2010JK707 ), Center for Surface Engineering and Tribology at Northwestern University and State Key Laboratory of Mechanical Transmission at Chongqing University .

Keywords

Elasto-plastic contact
Normal and torque loading
Spinning sphere

ASJC Scopus subject areas

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

Access to Document

10.1016/j.triboint.2013.02.015

Cite this

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title = "Elasto-plastic indentation of a half-space by a rigid sphere under normal and torque loading",

abstract = "This work presents a numerical study of a spinning rigid sphere pressed against an elasto-plastic half space under combined normal and torque loading. The von Mises stresses and equivalent plastic strain under different torques are investigated. Results show that the torque shifts the maximum von Mises stress and plastic region in the half space closer to the surface at larger friction coefficient. An empirical formula to predict the contact area is suggested. The evolution of the plastic region in the half space is further examined. The region shows more complex shapes than those only under a normal load.",

keywords = "Elasto-plastic contact, Normal and torque loading, Spinning sphere",

author = "Pengyang Li and Zhanjiang Wang and Xiaoyong Li and Xiaoqing Jin and Chen, {W. Wayne} and Yan Li and Wang, {Q. Jane}",

note = "Funding Information: The authors would like to thank the support of the National Key Basic Research Program of China ( 2009CB724406 ), National Science Foundation of China ( 51275407 , 51105305 ), Shannxi Provincial Education Department Research Program of China ( 2010JK707 ), Center for Surface Engineering and Tribology at Northwestern University and State Key Laboratory of Mechanical Transmission at Chongqing University .",

year = "2013",

doi = "10.1016/j.triboint.2013.02.015",

language = "English (US)",

volume = "62",

pages = "141--148",

journal = "Tribology International",

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T1 - Elasto-plastic indentation of a half-space by a rigid sphere under normal and torque loading

AU - Li, Pengyang

AU - Wang, Zhanjiang

AU - Li, Xiaoyong

AU - Jin, Xiaoqing

AU - Chen, W. Wayne

AU - Li, Yan

AU - Wang, Q. Jane

N1 - Funding Information: The authors would like to thank the support of the National Key Basic Research Program of China ( 2009CB724406 ), National Science Foundation of China ( 51275407 , 51105305 ), Shannxi Provincial Education Department Research Program of China ( 2010JK707 ), Center for Surface Engineering and Tribology at Northwestern University and State Key Laboratory of Mechanical Transmission at Chongqing University .

PY - 2013

Y1 - 2013

N2 - This work presents a numerical study of a spinning rigid sphere pressed against an elasto-plastic half space under combined normal and torque loading. The von Mises stresses and equivalent plastic strain under different torques are investigated. Results show that the torque shifts the maximum von Mises stress and plastic region in the half space closer to the surface at larger friction coefficient. An empirical formula to predict the contact area is suggested. The evolution of the plastic region in the half space is further examined. The region shows more complex shapes than those only under a normal load.

AB - This work presents a numerical study of a spinning rigid sphere pressed against an elasto-plastic half space under combined normal and torque loading. The von Mises stresses and equivalent plastic strain under different torques are investigated. Results show that the torque shifts the maximum von Mises stress and plastic region in the half space closer to the surface at larger friction coefficient. An empirical formula to predict the contact area is suggested. The evolution of the plastic region in the half space is further examined. The region shows more complex shapes than those only under a normal load.

KW - Elasto-plastic contact

KW - Normal and torque loading

KW - Spinning sphere

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DO - 10.1016/j.triboint.2013.02.015

M3 - Article

AN - SCOPUS:84875410945

SN - 0301-679X

VL - 62

SP - 141

EP - 148

JO - Tribology International

JF - Tribology International

ER -

Elasto-plastic indentation of a half-space by a rigid sphere under normal and torque loading

Abstract

Funding

Keywords

ASJC Scopus subject areas

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