|On The Thermally Induced Cracking Of A Segmented Coating Deposited On The Outer Surface Of A Hollow Cylinder|
|Chen XJ(陈学军); Chen GN(陈光南); Chen XJ
|Source Publication||Surface & Coatings Technology
|Abstract||In this work, the thermally induced cracking behavior of a segmented coating has been investigated. The geometry under consideration is a hollow cylinder with a segmented coating deposited onto its outer surface. The segmentation cracks are modeled as a periodic array of axial edge cracks. The finite element method is utilized to obtain the solution of the multiple crack problem and the Thermal Stress Intensity Factors (TSIFs) are calculated. Based on dimensional analysis, the main parameters affecting TSIFs are identified. It has been found that the TSIF is a monotonically increasing function of segmentation crack spacing. This result confirms that a segmented coating exhibits much higher thermal shock resistance than an intact counterpart, if only the segmentation crack spacing is narrow enough. The dependence of TSIF on some other parameters, such as normalized time, segmentation crack depth, convection severity as well as material constants, has also been discussed. (C) 2008 Elsevier B.V. All rights reserved.|
Thermal Stress Intensity Factor (Tsif)
Finite Element Method
|WOS Keyword||THICK-WALLED CYLINDER
; BARRIER COATINGS
; AXIAL CRACKS
|WOS Research Area||Materials Science
|WOS Subject||Materials Science, Coatings & Films
; Physics, Applied
|Corresponding Author||Chen XJ|
Chen XJ,Chen GN,Chen XJ. On The Thermally Induced Cracking Of A Segmented Coating Deposited On The Outer Surface Of A Hollow Cylinder[J]. Surface & Coatings Technology,2009,203(9):1114-1120.
陈学军,陈光南,&Chen XJ.(2009).On The Thermally Induced Cracking Of A Segmented Coating Deposited On The Outer Surface Of A Hollow Cylinder.Surface & Coatings Technology,203(9),1114-1120.
陈学军,et al."On The Thermally Induced Cracking Of A Segmented Coating Deposited On The Outer Surface Of A Hollow Cylinder".Surface & Coatings Technology 203.9(2009):1114-1120.
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