Elasto-plastic analysis of a contact under normal and torque loading

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A spinning rigid sphere pressed against an elasto-plastic half space under combined normal and torque loading is presented. The elastic results based on present method are compared with an analytical solution to validate the current model. Stresses, strains, and residual displacements are investigated. The effects of friction coefficient on the spinning and half space contacts are studied. The surface pressure, subsurface stress, von Misses stress, the first yield point, plastic strain fields and evolution of the plastic region are further analyzed. Results show that the application of the torque shifts the maximum von Mises stress and plastic region in the half space closer to the surface; the whole plastic region also moves near the surface. Moreover, the position of the first yield points becomes closer to the surface as well; the evolution of the plastic region shows more complex shapes than those only under a normal load condition.

Original languageEnglish (US)
Title of host publicationASME/STLE 2012 International Joint Tribology Conference, IJTC 2012
Pages281-283
Number of pages3
DOIs
StatePublished - Dec 1 2012
EventASME/STLE 2012 International Joint Tribology Conference, IJTC 2012 - Denver, CO, United States
Duration: Oct 7 2012Oct 10 2012

Publication series

NameAmerican Society of Mechanical Engineers, Tribology Division, TRIB

Other

OtherASME/STLE 2012 International Joint Tribology Conference, IJTC 2012
CountryUnited States
CityDenver, CO
Period10/7/1210/10/12

ASJC Scopus subject areas

  • Mechanical Engineering
  • Materials Science(all)

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