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

文献类型：期刊论文

作者Wei YG(魏悦广)1; Song JR(宋晶如)2
刊名ENGINEERING FRACTURE MECHANICS
出版日期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
DOI10.1016/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
WOS关键词STRAIN GRADIENT PLASTICITY ; DUCTILE THIN-FILMS ; CRACK-GROWTH ; NUMERICAL-SIMULATION ; DELAMINATION ; MECHANICS ; PARAMETERS ; COATINGS ; WORK ; SIZE
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
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.

入库方式： OAI收割

来源：力学研究所

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