THE EFFECTS OF CONSTRAINT, SIZE AND ASPECT RATIO ON THERMAL SHOCK   RESISTANCE OF ZNS WAVE-TRANSPARENT CERAMIC IN ITS ACTUAL SERVICE

doi:10.1017/jmech.2015.21

CORC > 北京大学 > 工学院

	THE EFFECTS OF CONSTRAINT, SIZE AND ASPECT RATIO ON THERMAL SHOCK RESISTANCE OF ZNS WAVE-TRANSPARENT CERAMIC IN ITS ACTUAL SERVICE
	Li, W.G. ; Li, D.J. ; Cheng, T.B. ; Fang, D.N.
刊名	JOURNAL OF MECHANICS
	2015
关键词	ZnS wave-transparent ceramic Pneumatic pressure Size Aspect ratio HIGH-TEMPERATURE CERAMICS INFRARED WINDOW MATERIALS STRESS REDUCTION FACTOR ENVIRONMENTS FABRICATION WURTZITE FRACTURE DESIGN
DOI	10.1017/jmech.2015.21
英文摘要	The thermal shock resistance (TSR) of ZnS wave-transparent ceramic depends on not only the mechanical and thermal properties of materials, but also the aerodynamic heating, pneumatic pressure, external constraint, size, aspect ratio and other factors in its actual service process. The theoretical model was established by introducing the analytical solution of transient heat conduction problem of ZnS plate under aerodynamic heating into its thermal stress field model and the pneumatic pressure was introduced. The present work mainly focused on the influences of constraint, size and aspect ratio on the critical rupture temperature difference of ZnS plate subjected to aerodynamic heating and pneumatic pressure. The numerical simulation was also conducted to verify the theoretical model. The results show that the large heat transfer condition corresponds to the poor TSR unless the constraint is too strong; the square plate provides the better TSR in case of different pneumatic pressures; a reasonable side length according to the range of pneumatic pressure would lead to the better TSR.; National Natural Science Foundation of China [11172336, 11472066]; Chongqing Natural Science Foundation [cstc2013jcyjA50018]; Program for New Century Excellent Talents in University [ncet-13-0634]; Fundamental Research Funds for the Central Universities [CDJZR13240021, CDJZR14328801]; Chongqing Graduate Student Research Innovation Project [CYB14030]; SCI(E); EI; ARTICLE; wgli@cqu.edu.cn; 4; 449-455; 31
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/417737]
专题	工学院
推荐引用方式 GB/T 7714	Li, W.G.,Li, D.J.,Cheng, T.B.,et al. THE EFFECTS OF CONSTRAINT, SIZE AND ASPECT RATIO ON THERMAL SHOCK RESISTANCE OF ZNS WAVE-TRANSPARENT CERAMIC IN ITS ACTUAL SERVICE[J]. JOURNAL OF MECHANICS,2015.
APA	Li, W.G.,Li, D.J.,Cheng, T.B.,&Fang, D.N..(2015).THE EFFECTS OF CONSTRAINT, SIZE AND ASPECT RATIO ON THERMAL SHOCK RESISTANCE OF ZNS WAVE-TRANSPARENT CERAMIC IN ITS ACTUAL SERVICE.JOURNAL OF MECHANICS.
MLA	Li, W.G.,et al."THE EFFECTS OF CONSTRAINT, SIZE AND ASPECT RATIO ON THERMAL SHOCK RESISTANCE OF ZNS WAVE-TRANSPARENT CERAMIC IN ITS ACTUAL SERVICE".JOURNAL OF MECHANICS (2015).