Mechanics of edge effects on frictionlesscontacts

M. T. Hanson, L. M. Keer

Research output: Contribution to journalArticlepeer-review

26 Scopus citations


This paper investigates edge effects on frictionless contacts. Edge phenomena are simulated by considering elastic contact near the edge of a wedge with varying wedge angle. Previous two-dimensional analysis is first reviewed and discussed to develop an understanding of the mechics when edges are in contact. Three-dimensional wedge contact is then considered. The integral equation for rigid indentation of an incompressible wedge derived by the authors is presently modified to study indentation by a dissimilar elastic body. The analysis will focus on evaluating the effect of proximity to the wedge apex on contact stress, contact area geometry and contact compliance. The effect of varying wedge angles and elastic mismatch (encompassed by the Dundurs constant α) will also be quantified. The conditions under which elastic mismatch results in a singular contact stress when contact extends to the wedge apex, derived by Dundurs and Lee, will be discussed and used to interpret the present numerical results.

Original languageEnglish
Pages (from-to)391-405
Number of pages15
JournalInternational Journal of Solids and Structures
Issue number3-4
StatePublished - Feb 1995

Bibliographical note

Funding Information:
Acknowledgement--One of the authors (M.T.H.) gratefully acknowledges support from the National Science Foundation under grant No. MSS-9210531. The other (L.M.K.) is grateful for support from the Association of American Railroads.

ASJC Scopus subject areas

  • Modeling and Simulation
  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Applied Mathematics


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