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A network-based transversely isotropic visco-hyperelastic constitutive model accounting for pendant chains

文献类型：期刊论文

作者Fan ZY(樊振宇)1,2; Li D(李多)1; Lei XQ(雷现奇)1; Wei YJ(魏宇杰)1,2
刊名MECHANICS OF MATERIALS
出版日期2025-04-01
卷号203
关键词Visco-hyperelastic Transversely isotopic OCAs Pendant chains Constitutive model
ISSN号0167-6636
DOI10.1016/j.mechmat.2025.105261
英文摘要Crosslinked polymeric films are widely used as a bonding component in flexible electronic devices. The ultra-thin polymeric materials are often transversely isotropic and visco-hyperelastic in response to a wide range of strains. The mechanical properties of such adhesives are a crucial part of the design process and device reliability evaluation. In this paper, we perform systematic investigation by characterizing the mechanical behavior of a typical group of optically clear adhesives (OCAs). By including the influence of pendant chains on the mechanical behaviors of OCAs under different loading conditions, we propose a network-based constitutive model for those OCAs, where a hyperelastic response originates from the crosslinked and entanglement networks and a viscous effect comes from free chains and pendant chains. The model is applied to predict the mechanical response of four commercially available 3M OCAs. Results show that our model can predict the mechanical response of OCAs well. We expect the experiment observation and the developed modelling may help in understanding the mechanical behavior of a wide range of polymeric adhesives for engineering practice.
分类号二类/Q1
WOS研究方向Materials Science, Multidisciplinary ; Mechanics ; Materials Science
语种英语
WOS记录号WOS:001415023700001
资助机构The authors acknowledge supports from the National Natural Sci-ence Foundation of China (NSFC) Basic Science Center for 'Multiscale Problems in Nonlinear Mechanics', China (No. 11988102) .
其他责任者雷现奇，魏宇杰
源URL[http://dspace.imech.ac.cn/handle/311007/101447]  
专题力学研究所_非线性力学国家重点实验室
作者单位1.Institute of Mechanics, CAS;
2.University of Chinese Academy of Sciences, CAS;
3.University of Chinese Academy of Sciences, CAS
推荐引用方式
GB/T 7714		 Fan ZY,Li D,Lei XQ,et al. A network-based transversely isotropic visco-hyperelastic constitutive model accounting for pendant chains[J]. MECHANICS OF MATERIALS,2025,203.
APA 樊振宇,李多,雷现奇,&魏宇杰.(2025).A network-based transversely isotropic visco-hyperelastic constitutive model accounting for pendant chains.MECHANICS OF MATERIALS,203.
MLA 樊振宇,et al."A network-based transversely isotropic visco-hyperelastic constitutive model accounting for pendant chains".MECHANICS OF MATERIALS 203(2025).

入库方式： OAI收割

来源：力学研究所

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