Trans-scale characterization of interface fracture in peel test for metal film/ceramic substrate systems

doi:10.1016/j.engfracmech.2019.106679

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Trans-scale characterization of interface fracture in peel test for metal film/ceramic substrate systems
	Wei YG(魏悦广)1 ; Song JR(宋晶如)2
刊名	ENGINEERING FRACTURE MECHANICS
	2019-11-01
卷号	221 页码:12
关键词	Interfacial separation strength Trans-scale mechanics theory Size effect Peel test Length scale parameter
ISSN号	0013-7944
DOI	10.1016/j.engfracmech.2019.106679
通讯作者	Wei, Yueguang(weiyg@pku.edu.cn)
英文摘要	In order to describe the interfacial fracture behaviors of the metal thin film with nano- or microscale thickness peeled on the ceramic substrate, a trans-scale mechanics model has been adopted. In the trans-scale mechanics model, both the strain gradient effect and surface/interface effect are considered. In addition, two fracture process models are used in present study, which are the cohesive zone model and the virtual internal bond model. Using the trans-scale mechanics theory and the interface models, the size effect of the interfacial separation strength between the metal thin films and the ceramic substrates is analyzed systematically by using the peel test. The results show that the fracture process zone size could be taken as the indicator of the trans-scale interface fracture characterization. The interface effect should be considered when the fracture process zone size is at the nanoscale, and the obtained interfacial separation strength is much higher than the conventional separation strength. The material length scale parameters of the metal films are determined by comparing the interfacial energy release rate predicted by the scale theories with the experimental results, which shows that the material length scale parameter could be regarded as the size of active plastic zone in the small scale yielding case during the peeling process.
分类号	二类/Q1
资助项目	National Natural Science Foundation of China[11972347] ; National Natural Science Foundation of China[11502273] ; National Natural Science Foundation of China[11432014] ; National Natural Science Foundation of China[11672301] ; National Natural Science Foundation of China[11890681] ; National Natural Science Foundation of China[11521202] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040501]
WOS关键词	STRAIN GRADIENT PLASTICITY ; DUCTILE THIN-FILMS ; CRACK-GROWTH ; NUMERICAL-SIMULATION ; DELAMINATION ; MECHANICS ; PARAMETERS ; COATINGS ; WORK ; SIZE
WOS研究方向	Mechanics
语种	英语
WOS记录号	WOS:000489845700018
资助机构	National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences
其他责任者	Wei, Yueguang
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/80655]
专题	力学研究所_非线性力学国家重点实验室
作者单位	1.Peking Univ, Coll Engn, Dept Mech, Beijing 100871, Peoples R China 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China;
推荐引用方式 GB/T 7714	Wei YG,Song JR. Trans-scale characterization of interface fracture in peel test for metal film/ceramic substrate systems[J]. ENGINEERING FRACTURE MECHANICS,2019,221:12.
APA	魏悦广,&宋晶如.(2019).Trans-scale characterization of interface fracture in peel test for metal film/ceramic substrate systems.ENGINEERING FRACTURE MECHANICS,221,12.
MLA	魏悦广,et al."Trans-scale characterization of interface fracture in peel test for metal film/ceramic substrate systems".ENGINEERING FRACTURE MECHANICS 221(2019):12.