J-integral for interface crack on micro-arc oxidation ceramic coating

Cheng Gao; Huiyu Tao; Dayong Cai; Jinyong Xu; Yan Tang; Ranran Huang

doi:10.1117/12.2265237

23 January 2017 J-integral for interface crack on micro-arc oxidation ceramic coating

Cheng Gao, Huiyu Tao, Dayong Cai, Jinyong Xu, Yan Tang, Ranran Huang

Proceedings Volume 10322, Seventh International Conference on Electronics and Information Engineering; 1032238 (2017) https://doi.org/10.1117/12.2265237
Event: Seventh International Conference on Electronics and Information Engineering, 2016, Nanjing, China

Abstract

By use of extended finite element analysis method, a calculation of J-integral for interface crack on Micro-arc Oxidation(MAO) ceramic coating on aluminum alloy was conducted. The feasibility of using J-integral as a fracture parameter to characterize the interfacial fracture toughness is discussed. The relation between J-integral and length of interface crack, thickness of ceramic coating is studied. Analysis result indicates that with the expansion of the interface crack length, resistance bi-material interface enhancements, and interfacial fracture toughness enhances, the J-integral increases with the increase of crack length. When the thickness of the ceramic coating is upon 40μm-100μm, interfacial fracture toughness is better. J-integral value shows a decreasing trend with the increase of the thickness of the ceramic coating.

Citation Download Citation

Cheng Gao, Huiyu Tao, Dayong Cai, Jinyong Xu, Yan Tang, and Ranran Huang "J-integral for interface crack on micro-arc oxidation ceramic coating", Proc. SPIE 10322, Seventh International Conference on Electronics and Information Engineering, 1032238 (23 January 2017); https://doi.org/10.1117/12.2265237

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