Experiments and numerical simulations of thermal shock crack patterns in thin circular ceramic specimens
文献类型：期刊论文
| 作者 | Liu YX ; Wu XF; Guo QK; Jiang CP; Song F(宋凡); Li J
|
| 刊名 | CERAMICS INTERNATIONAL
 |
| 出版日期 | 2015-01 |
| 卷号 | 41期号:1页码:1107-1114 |
| 通讯作者邮箱 | songfan.imech@gmail.com |
| 关键词 | Ceramics Thermal shock Crack patterns Numerical simulations |
| ISSN号 | 0272-8842 |
| 产权排序 | [Liu, Yuxing] Beihang Univ, Sch Mat Sci & Engn, Beijing 100191, Peoples R China; [Wu, Xiaofeng; Guo, Qiankun; Jiang, Chiping] Beihang Univ, Sch Aeronaut Sci & Engn, Beijing 100191, Peoples R China; [Jiang, Chiping; Song, Fan] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; [Li, Jia] Univ Paris 13, CNRS UPR 3407, LSPM, F-93430 Villetaneuse, France |
| 通讯作者 | Song, F (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. |
| 合作状况 | 国际 |
| 中文摘要 | An attempt was made to explore the formation mechanism of thermal shock crack patterns in ceramics and to develop quantitative numerical simulations. A set of experiments on thin circular ceramic specimens yielded two-dimensional readings of thermal shock crack patterns with periodical and hierarchical characteristics. The numerical simulations of the thermal shock crack patterns are based on the minimum potential energy principle, where the convective heat transfer coefficient at high temperatures, which is difficult to measure, was inversely estimated by the crack spacing, which is easy to measure. Numerical simulation results were in good agreement with the experimental data. Several interesting thermal shock crack evolution phenomena were found. Two stability criteria of crack propagation, i.e. the minimum potential energy principle and the fracture mechanics bifurcation theory, were compared. It was found that the two criteria verify and complement each other. The present study leads to an improved understanding of the formation and evolution of thermal shock crack patterns in ceramics and can help engineers to assess the thermal shock failure of practical ceramic components. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved. |
| 学科主题 | Materials Science |
| 分类号 | 一类 |
| 收录类别 | SCI ; EI |
| 资助信息 | This work was supported by the National Natural Science Foundation of China (Grants nos. 11172023 and 11232013), the Fundamental Research Funds for the Central Universities and funding from the French ANR program T-Shock ANR-10-INTB-0915. |
| 原文出处 | http://dx.doi.org/10.1016/j.ceramint.2014.09.036 |
| 语种 | 英语 |
| WOS记录号 | WOS:000346216500029 |
| 公开日期 | 2015-03-17 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/49596]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Liu YX,Wu XF,Guo QK,et al. Experiments and numerical simulations of thermal shock crack patterns in thin circular ceramic specimens[J]. CERAMICS INTERNATIONAL,2015,41(1):1107-1114. |
| APA | Liu YX,Wu XF,Guo QK,Jiang CP,Song F,&Li J.(2015).Experiments and numerical simulations of thermal shock crack patterns in thin circular ceramic specimens.CERAMICS INTERNATIONAL,41(1),1107-1114. |
| MLA | Liu YX,et al."Experiments and numerical simulations of thermal shock crack patterns in thin circular ceramic specimens".CERAMICS INTERNATIONAL 41.1(2015):1107-1114. |
入库方式： OAI收割
来源：力学研究所
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