Finite Element Analysis of Coating-Matrix Interface Crack

Abstract:

The finite element method combined with the singular element was adopted to study the effects of thickness ratio of the coating-matrix, elastic modulus ratio of the coating-matrix, and the ratio of ensile stress and shear stress on the coating top on the stress intensity of the interface crack on the coating-matrix. Through calculations, results show that elastic modulus ratio of the coating-matrix has little effect on stress intensity factor of interface crack, while the thickness ratio and the tensile stress and shear stress ratio on the coating top have a great effect on it, which should be controlled in the coating-matrix structure design.

• Periodical: Applied Mechanics and Materials (Volume 684)
• Pages: 64-69
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.684.64
• Online since: October 2014
• Authors: Bo He, Sha Sha Chu, Guo Qi*, Chang Qing Sun
• Keywords: Coating, Finite Element Analysis (FEA), Interface Crack, Stress Intensity Factor

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