Loss of adhesion of a layer bonded to an elastic half space caused by a concentrated contact

S. H. Kim, L. M. Keer, H. S. Cheng

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

A model is constructed to analyze the effects of a concentrated contact on a layer that is perfectly bonded to an elastic half space, except for a debond region, which is analyzed as a frictional interfacial crack. The crack is assumed not to open and the growth is governed by a mode II stress intensity factor that is retarded by interfacial friction. This model may be used to study the fracture of hard coatings at the asperity scale where the failure is caused by loss of adhesion of the interface. Two specific cases are considered: one in which the loading is by a point force and one in which the loading is by a finite size of contact about the size of the layer thickness.

Original languageEnglish (US)
Pages (from-to)53-58
Number of pages6
JournalTribology Transactions
Volume33
Issue number1
DOIs
StatePublished - Jan 1990

ASJC Scopus subject areas

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

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