Elastic-plastic contact analysis of materials with gradient yield strength

Qin Xie*, Geng Liu, Tianxiang Liu, Jane Q. Wang

*Corresponding author for this work

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


Reported in the paper is an elastic-plastic contact model developed to analyze the contact performance characteristics of materials with gradient yield strength. Plastic yielding and the strain-hardening properties of the materials are taken into account. The finite element method, the initial stiffness method, and a mathematical programming technique are utilized to solve the contact model. The von Mises yield criterion is used to determine the inception of plastic deformation. Results indicate that nitrided material with appropriate gradient of yield strength may greatly alter the distributions of contact stress, contact pressure as compared with untreated material in contact. The effects of different yield strength variation path of material on von Mises stress distributions are numerically investigated and discussed.

Original languageEnglish (US)
Title of host publicationAdvances in Materials Manufacturing Science and Technology II - Selected Papers from the 12th International Manufacturing Conference in China
EditorsChengyu Jiang, Geng Liu, Dinghua Zhang, Xipeng Xu
PublisherTrans Tech Publications Ltd
Number of pages4
ISBN (Print)0878494219, 9780878494217
StatePublished - 2006
Event12th International Manufacturing Conference in China, IMCC2006 - Xi'an, China
Duration: Sep 21 2006Sep 23 2006

Publication series

NameMaterials Science Forum
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752


Other12th International Manufacturing Conference in China, IMCC2006


  • Contact
  • Elastic-plastic
  • Finite elements

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


Dive into the research topics of 'Elastic-plastic contact analysis of materials with gradient yield strength'. Together they form a unique fingerprint.

Cite this