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

Sung Ho Kim; Leon Keer; Herbert Cheng

doi:10.1007/BF02945682

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

Sung Ho Kim^*, Leon Keer, Herbert Cheng

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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 at the interface.

Original language	English (US)
Pages (from-to)	38-43
Number of pages	6
Journal	KSME Journal
Volume	3
Issue number	1
DOIs	https://doi.org/10.1007/BF02945682
State	Published - Mar 1989
Externally published	Yes

Keywords

Coating
Contact
Interfacial Crack
Mode II Stress Intensity Factor

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering

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10.1007/BF02945682

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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 at the interface.",

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AU - Keer, Leon

AU - Cheng, Herbert

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N2 - 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 at the interface.

AB - 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 at the interface.

KW - Coating

KW - Contact

KW - Interfacial Crack

KW - Mode II Stress Intensity Factor

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

Abstract

Keywords

ASJC Scopus subject areas

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