Maximum von Mises Stress and Its Location in Trilayer Materials in Contact

Chengjiao Yu*, Zhanjiang Wang, Geng Liu, Leon M. Keer, Q. Jane Wang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Trilayer materials consisting of a functional outer layer on a substrate containing one intermediate layer are widely used in data-processing devices, biomedical components, and mechanical elements. The recent analytical frequency response functions (FRFs) derived by the authors' group for the contact of multilayer materials lead to the novel deterministic modeling of frictionless and frictional contact involving a trilayer material system designed with various thickness and elastic property combinations. Displacements and stresses for point contacts are calculated effectively by employing the discreteconvolution and fast Fourier transform (FFT) method based on the influence coefficients obtained from the analytical FRFs. The maximum von Mises stress and its location, which are critical information for understanding the material contact status, are thoroughly investigated for a wide range of trilayer materials. The results provide an informative guideline for the design of bilayer coatings without contact failure.

Original languageEnglish (US)
Article number041402
JournalJournal of Tribology
Volume138
Issue number4
DOIs
StatePublished - Oct 1 2016

Keywords

  • contact stress analysis
  • maximum stress and location
  • trilayer
  • yield map

ASJC Scopus subject areas

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

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