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Prefabricated crack propagation in translucent alumina ceramic sheets during flame thermal shock

文献类型：期刊论文

作者Li, Qingxian2,4,5; Li, Yuqiao2,4,5; Li, Jia3; Li, Long2,4,5; Wu, Xiaofeng1; Shao, Yingfeng2,4,5; Charles, Yann3; Barboura, Salma3; Song, Fan2,4,5; Song F(宋凡)
刊名ENGINEERING FRACTURE MECHANICS
出版日期2022-03-15
卷号263页码:13
ISSN号0013-7944
关键词Thermal shock Crack speed Dynamic stress intensity factor Numerical simulation Real-time
DOI10.1016/j.engfracmech.2022.108285
通讯作者Li, Jia(jia.li@univ-paris13.fr) ; Shao, Yingfeng(shaoyf@lnm.imech.ac.cn)
英文摘要The prefabricated cracks propagation of ceramic under flame thermal shock was studied by realtime observation. The experimental results show that wing cracks are generated from both tips of the prefabricated crack, and the complete failure of the samples is a high-speed process. The crack propagation speed is fast at first and then gradually slows down. The maximum propagation speed of the near flame tip increases with the prefabricated crack distance to the heated surface, while an inverse trend is observed for the far flame tip. The effect of prefabricated crack angle on thermal shock crack propagation was also considered. In addition, numerical simulations based on dynamic fracture mechanics were carried out to reproduce the entire cracking process. To this end, the relation between the dynamic stress intensity factors and the crack growth speed in the speed range of 100 m/s to 2600 m/s was identified by combing experiments and numerical simulations. The simulation results and the above-mentioned relation are consistent with the experimental observations. The numerical model can faithfully reproduce the crack evolution process of the thermal shock, which is difficult to observe in an experiment due to the high speed of the cracking process.
WOS关键词HIGH TEMPERATURE CERAMICS ; NUMERICAL SIMULATIONS ; DYNAMIC FRACTURE ; GROWTH ; RESISTANCE ; PATTERNS ; BEHAVIOR ; MODEL
资助项目National Natural Science Foundations of China[11972041] ; National Natural Science Foundations of China[11802033] ; YouthInnovation Promotion Association CAS[XDB22040102] ; Strategic Priority Research Program of the Chinese Academy of Sciences
WOS研究方向Mechanics
语种英语
WOS记录号WOS:000782647500003
资助机构National Natural Science Foundations of China ; YouthInnovation Promotion Association CAS ; Strategic Priority Research Program of the Chinese Academy of Sciences
源URL[http://dspace.imech.ac.cn/handle/311007/88895]  
专题力学研究所_非线性力学国家重点实验室
通讯作者Li, Jia; Shao, Yingfeng; Shao YF(邵颖峰)
作者单位1.Beijing Inst Struct & Environm Engn, Beijing 100076, Peoples R China
2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
3.Univ Sorbonne Paris Nord, CNRS, Lab Sci Procedes & Mat, LSPM,UPR 3407, F-93430 Villetaneuse, France
4.Chinese Acad Sci, Beijing Key Lab Engn Construct & Mech, Inst Mech, Beijing 100190, Peoples R China
5.Chinese Acad Sci, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Li, Qingxian,Li, Yuqiao,Li, Jia,et al. Prefabricated crack propagation in translucent alumina ceramic sheets during flame thermal shock[J]. ENGINEERING FRACTURE MECHANICS,2022,263:13.
APA Li, Qingxian.,Li, Yuqiao.,Li, Jia.,Li, Long.,Wu, Xiaofeng.,...&Li QX.(2022).Prefabricated crack propagation in translucent alumina ceramic sheets during flame thermal shock.ENGINEERING FRACTURE MECHANICS,263,13.
MLA Li, Qingxian,et al."Prefabricated crack propagation in translucent alumina ceramic sheets during flame thermal shock".ENGINEERING FRACTURE MECHANICS 263(2022):13.

入库方式： OAI收割

来源：力学研究所

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