Crack patterns corresponding to the residual strength plateau of ceramics subjected to thermal shock

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	Crack patterns corresponding to the residual strength plateau of ceramics subjected to thermal shock
	Hou HL; Wu XF; Yan P; Song F(宋凡); Li J; Jiang CP; Jiang, CP
刊名	ACTA MECHANICA SINICA
	2012-06-01
通讯作者邮箱	jiangchiping@buaa.edu.cn
卷号	28 期号:3 页码:670-674
关键词	Ceramics Thermal shock Crack patterns Residual strength Stress intensity factor Functionally Graded Ceramics Propagation Behavior Fracture
ISSN号	0567-7718
通讯作者	Jiang, CP ; Beihang Univ, Sch Aeronaut Sci & Engn, Beijing 100191, Peoples R China.
产权排序	[Hou, H. -L.;Wu, X. -F.; Yan, P.; Jiang, C. -P.] Beihang Univ, Sch Aeronaut Sci & Engn, Beijing 100191, Peoples R China; [Song, F.] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China; [Li, J.] Univ Paris 13, LSPM, CNRS, UPR 3407, F-93430 Villetaneuse, France
合作状况	国际
中文摘要	The formation mechanism of the residual strength plateau of ceramics subjected to thermal shock is addressed. A set of thermal shock experiments of 99Al(2)O(3) are conducted, where the thin specimens of 1 mmx10 mmx50 mm exhibit parallel through edge cracks, and thus permit quantitative measurements of the crack patterns. The cracks evolve with the severity of thermal shock. It is found that there is a correlation between the length and density of the thermal shock cracks. The increase of crack length weakens the residual strength, whereas the increase of crack density improves it. In a considerably wide temperature range, the two contrary effects just counteract each other;consequently a plateau appears in the variation curve of the residual strength. A comparison between the numerical and experimental results of the residual strength is made, and they are found in good agreement. This work is helpful to a deep understanding of the thermal shock failure of ceramics.
学科主题	极端条件下的材料和结构
分类号	二类
收录类别	SCI ; EI ; CSCD
资助信息	The project was supported by the National Natural Science Foundations of China (10972020, 11061130550), the Fundamental Research Funds for the Central Universities and the National Agency for Research of France (International project T-shock).
原文出处	http://dx.doi.org/10.1007/s10409-012-0067-x
语种	英语
WOS记录号	WOS:000306214300012
公开日期	2013-01-18
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/46686]
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	Hou HL,Wu XF,Yan P,et al. Crack patterns corresponding to the residual strength plateau of ceramics subjected to thermal shock[J]. ACTA MECHANICA SINICA,2012,28(3):670-674.
APA	Hou HL.,Wu XF.,Yan P.,Song F.,Li J.,...&Jiang, CP.(2012).Crack patterns corresponding to the residual strength plateau of ceramics subjected to thermal shock.ACTA MECHANICA SINICA,28(3),670-674.
MLA	Hou HL,et al."Crack patterns corresponding to the residual strength plateau of ceramics subjected to thermal shock".ACTA MECHANICA SINICA 28.3(2012):670-674.