Power-law characteristics of damage and failure of ceramic coating systems under three-point bending

doi:10.1016/j.surfcoat.2015.11.044

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	Power-law characteristics of damage and failure of ceramic coating systems under three-point bending
	Liang LH(梁立红); Li XN; Liu HY; Wang YB; Wei YG(魏悦广); Liang, LH
发表期刊	SURFACE & COATINGS TECHNOLOGY
	2016-01-15
卷号	285 页码:113-119
ISSN	0257-8972
摘要	Damage and failure of ceramic coatings bonded on alloy substrates was studied by observing crack evolution in the coating systems under in situ three-point bending tests with corresponding load-displacement curves. A damage and catastrophic failure model on the ceramic coatings was proposed based on our experimental results and the Taylor expansion of the controlling variable. The results indicate that the damage increases with increasing stress and obeys the power-law characteristics with the power exponent of 0.5, and the damage is 1 as the stress reaches the critical point corresponding to the failure of the coating systems. The damage rate increases rapidly when the stress is near the failure point and shows a power law singularity of -0.5. The experimental results of thin, thick, nanostructured, and conventional micrometer-scale microstructured coatings are all in agreement with the predictions based on the model. (C) 2015 Elsevier B.V. All rights reserved.
DOI	10.1016/j.surfcoat.2015.11.044
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000369200600012
关键词[WOS]	SMOOTHED PARTICLE HYDRODYNAMICS ; FLUID-STRUCTURE INTERACTION ; SIMULATION
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Coatings & Films ; Physics, Applied
项目资助者	This work was supported by the National Basic Research Programs of China (No. 2012CB937500), the NSFC grants of China (Nos. 11372318, 11023001,11432014, and 91216108), and the CAS/SAFEA International Partnership Program for Creative Research Teams.
课题组名称	LNM新型材料及结构的多尺度力学
论文分区	二类
力学所作者排名	True
引用统计	被引频次：20[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/58682
专题	非线性力学国家重点实验室
通讯作者	Liang, LH
推荐引用方式 GB/T 7714	Liang LH,Li XN,Liu HY,et al. Power-law characteristics of damage and failure of ceramic coating systems under three-point bending[J]. SURFACE & COATINGS TECHNOLOGY,2016,285:113-119.
APA	Liang LH,Li XN,Liu HY,Wang YB,Wei YG,&Liang, LH.(2016).Power-law characteristics of damage and failure of ceramic coating systems under three-point bending.SURFACE & COATINGS TECHNOLOGY,285,113-119.
MLA	Liang LH,et al."Power-law characteristics of damage and failure of ceramic coating systems under three-point bending".SURFACE & COATINGS TECHNOLOGY 285(2016):113-119.

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