A study of the mechanism of formation and numerical simulations of crack patterns in ceramics subjected to thermal shock
文献类型：期刊论文
| 作者 | Jiang CP ; Wu XF; Li J; Song F(宋凡); Shao YF(邵颖峰); Xu XH(许向红); Yan P; Jiang, CP
|
| 刊名 | Acta Materialia
 |
| 出版日期 | 2012-06-01 |
| 卷号 | 60期号:11页码:4540-4550 |
| 通讯作者邮箱 | jiangchiping@buaa.edu.cn |
| 关键词 | Ceramics Thermal shock Crack patterns Numerical simulations Semi-inverse method Heat-Transfer Coefficient Polycrystalline Alumina Stress Resistance Water Bath Temperature Propagation Fracture Susceptibility Growth Solids |
| ISSN号 | 1359-6454 |
| 产权排序 | [Jiang, C. P.;Wu, X. F.; Yan, P.] Beihang Univ, Sch Aeronaut Sci & Engn, Beijing 100191, Peoples R China; [Li, J.] Univ Paris 13, LSPM, CNRS UPR 3407, F-93430 Villetaneuse, France; [Song, F.; Shao, Y. F.; Xu, X. H.] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China |
| 通讯作者 | Jiang, CP ; Beihang Univ, Sch Aeronaut Sci & Engn, Beijing 100191, Peoples R China. |
| 合作状况 | 国际 |
| 中文摘要 | The present work examines the mechanism of formation of thermal shock crack patterns in ceramics. An attempt has been made to bridge the gap between theoretical predictions and experimental data. A set of experiments on thin ceramic specimens yielded two-dimensional readings of thermal shock crack patterns with periodical and hierarchical characteristics that vary with the thermal shock temperature. Based on the minimum potential energy principle the finite element method was used for numerical simulations, in which the temperature dependence of the material properties was considered. To overcome the difficulty of a lack of accurate data on the convective heat transfer coefficient at high temperatures, a "semi-inverse method" was developed, which explores a new method for estimating a physical quantity that is difficult to measure using physical quantities, which are relatively easy to measure. The numerical and experimental data were compared and discussed. The obtained numerical results are in good agreement with the experimental data. Furthermore, the numerical simulations can conveniently reproduce the evolution of thermal shock cracks, which is difficult to observe experimentally. In addition, some interesting phenomena related to thermal shock crack pattern evolution were observed. The present theoretical-numerical-experimental study has led to a much improved understanding of the formation and evolution of thermal shock crack patterns in ceramics. |
| 学科主题 | 极端条件下的材料和结构 |
| 分类号 | 一类 |
| 收录类别 | SCI ; EI |
| 资助信息 | This work was supported by the National Natural Science Foundations of China (Grants Nos. 11061130550 and 11172023), the Fundamental Research Funds for the Central Universities and funding from the French ANR program T-Shock OTP J11R087. |
| 原文出处 | http://dx.doi.org/10.1016/j.actamat.2012.05.020 |
| 语种 | 英语 |
| WOS记录号 | WOS:000306621300019 |
| 公开日期 | 2013-01-18 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/46663]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 通讯作者 | Jiang, CP |
| 推荐引用方式 GB/T 7714 | Jiang CP,Wu XF,Li J,et al. A study of the mechanism of formation and numerical simulations of crack patterns in ceramics subjected to thermal shock[J]. Acta Materialia,2012,60(11):4540-4550. |
| APA | Jiang CP.,Wu XF.,Li J.,宋凡.,邵颖峰.,...&Jiang, CP.(2012).A study of the mechanism of formation and numerical simulations of crack patterns in ceramics subjected to thermal shock.Acta Materialia,60(11),4540-4550. |
| MLA | Jiang CP,et al."A study of the mechanism of formation and numerical simulations of crack patterns in ceramics subjected to thermal shock".Acta Materialia 60.11(2012):4540-4550. |
入库方式： OAI收割
来源：力学研究所
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