Finite Element Analysis of Coating-matrix Interface Crack

Bo HE; Sha-Sha CHU; Guo QI; Chang-Qing SUN
October 2014
Applied Mechanics & Materials;2014, Issue 684, p64
Academic Journal
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.


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