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Analysis of hard
coatings on a substrate containing inhomogeneities
Kun Zhou, Leon M. Keer and Q. Jane Wang |
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Vol. 6 (2011), No. 1-4, 627–639
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Abstract |
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We investigate the effect stiff inhomogeneities in the substrate beneath a hard coating have on the elastic field. The solution of multiple interacting three-dimensional inhomogeneities in a half-space is utilized by modeling a coating layer as an inhomogeneity of finite size. The study shows that stiff inhomogeneities in the substrate do not worsen the cracking and debonding of hard coatings, but are still detrimental to the yielding behavior of the substrate even though it is under the protection of a hard coating. |
Keywords
hard coating, inhomogeneity, equivalent inclusion method,
yielding
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Milestones
Received: 21 June 2010
Revised: 28 October 2010
Accepted: 4 November 2010
Published: 28 June 2011
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Authors |
| Kun Zhou | |
| Department of Mechanical
Engineering Northwestern University 2145 Sheridan Road Evanston, IL 60208-3100 United States |
School of Mechanical and Aerospace
Engineering Nanyang Technological University 50 Nanyang Avenue Singapore 639798 Singapore |
| Leon M. Keer | |
| Department of Mechanical
Engineering Northwestern University 2145 Sheridan Road Evanston, IL 60208-3100 United States |
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| Q. Jane Wang | |
| Department of Mechanical
Engineering Northwestern University 2145 Sheridan Road Evanston, IL 60208-3100 United States |
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