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

Research output: Contribution to journalArticle

10 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 languageEnglish (US)
Pages (from-to)141-148
Number of pages8
JournalTribology International
Volume62
DOIs
StatePublished - Apr 2 2013

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

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