Understanding the enhancement of coating's thermal cracking resistance by multiple segmentation
文献类型：会议论文
| 作者 | Chen XJ(陈学军) ; Chen GN(陈光南); Chen XJ(陈学军)
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| 出版日期 | 2011 |
| 会议名称 | 2011 International Conference on Advanced Design and Manufacturing Engineering, ADME 2011 |
| 会议日期 | SEP 16-18, 2011 |
| 会议地点 | Guangzhou, China |
| 通讯作者邮箱 | chenxuejun@ustb.edu.cn |
| 关键词 | Coatings Crack initiation Cracking (chemical) Cracks Design Finite element method Stress intensity factors Thermal shock Thermal stress Cracking behavior Driving forces Experimental observation Hollow cylinders Multiple segmentation Outer surface Principle of superposition Segmentation crack Segmentation cracks Segmented coatings Steady state Thermal cracking Thermal shock resistance Thermal transients |
| 卷号 | 314-316 |
| 页码 | 223-230 |
| 通讯作者 | 陈学军 |
| 中文摘要 | In this paper, the thermal shock induced cracking behavior of a segmented coating on the outer surface of a hollow cylinder has been investigated. The driving force for the propagation of multiple segmentation crack, represented by the Thermal Stress Intensity Factor (TSIF), was determined by combination of the principle of superposition and the finite element method. The maximum TSIF has been shown to occur neither at the beginning nor at the steady state of thermal transients, but at an intermediate instant. As the spacing between multiple segmentation cracks decreases, the magnitude of TSIF first plateaus, and then decreases sharply. This quantitative mechanistic result rationalizes the experimental observations that a segmented coating can exhibit much higher thermal shock resistance than an intact counterpart, if only the segmentation crack spacing is narrow enough. Some other parameters affecting TSIF, such as segmentation crack depth and convection severity, were also discussed. |
| 收录类别 | CPCI-S ; EI |
| 合作状况 | 国内 |
| 产权排序 | 1 Department of Applied Mechanics, University of Science and Technology Beijing, 30 Xueyuan Road, Beijing 100083, China 2 Institute of Mechanics, Chinese Academy of Sciences, 15 Beisihuanxi Road, Beijing 100190, China |
| 会议网址 | http://dx.doi.org/10.4028/www.scientific.net/AMR.314-316.223 |
| 会议录 | ADVANCED MANUFACTURING TECHNOLOGY
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| 会议录出版者 | TRANS TECH PUBLICATIONS, P.O. BOX 1254, CLAUSTHAL-ZELLERFELD, D-38670, GERMANY |
| 语种 | 英语 |
| ISSN号 | 1022-6680 |
| ISBN号 | 978-3-03785-215-6 |
| WOS记录号 | WOS:000303483500044 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/46839]  |
| 专题 | 力学研究所_先进制造工艺力学重点实验室 |
| 通讯作者 | Chen XJ(陈学军) |
| 推荐引用方式 GB/T 7714 | Chen XJ,Chen GN,Chen XJ. Understanding the enhancement of coating's thermal cracking resistance by multiple segmentation[C]. 见:2011 International Conference on Advanced Design and Manufacturing Engineering, ADME 2011. Guangzhou, China. SEP 16-18, 2011.http://dx.doi.org/10.4028/www.scientific.net/AMR.314-316.223. |
入库方式： OAI收割
来源：力学研究所
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