Spherical indentation problems of ceramic coatings/metallic inter-layer/ductile substrate were investigated numerically by axisymmetric FEA for two typical ceramic coatings with relatively high and low elastic modulus deposited on aluminum alloy and carbon steel. The fracture mechanics of the ceramic coatings due to occurrence of surface ring cracks extending traverse coating thickness under spherical indenter were considered under the framework of linear fracture mechanics. The J-integral associated to such cracks was computed. The evolution of J-integral versus crack length and indentation depth was studied. The results show that metallic inter-layers can improve the fracture resistance of the ceramic layer under the same indentation conditions.
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World Tribology Congress III
September 12–16, 2005
Washington, D.C., USA
Conference Sponsors:
- Tribology Division
ISBN:
0-7918-4201-0
PROCEEDINGS PAPER
Finite Element Analysis of Ceramic Coating Systems Under Spherical Indentation With Metallic Interlayer: Part II — Ring Crack Analysis Available to Purchase
Minh-Quy Le,
Minh-Quy Le
Kyungpook National University, Daegu, Korea
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Jin-Woo Yi,
Jin-Woo Yi
Kyungpook National University, Daegu, Korea
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Seock-Sam Kim
Seock-Sam Kim
Kyungpook National University, Daegu, Korea
Search for other works by this author on:
Minh-Quy Le
Kyungpook National University, Daegu, Korea
Jin-Woo Yi
Kyungpook National University, Daegu, Korea
Seock-Sam Kim
Kyungpook National University, Daegu, Korea
Paper No:
WTC2005-64210, pp. 415-416; 2 pages
Published Online:
November 17, 2008
Citation
Le, M, Yi, J, & Kim, S. "Finite Element Analysis of Ceramic Coating Systems Under Spherical Indentation With Metallic Interlayer: Part II — Ring Crack Analysis." Proceedings of the World Tribology Congress III. World Tribology Congress III, Volume 1. Washington, D.C., USA. September 12–16, 2005. pp. 415-416. ASME. https://doi.org/10.1115/WTC2005-64210
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