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From period-doubling to folding in stiff film/soft substrate system: The role of substrate nonlinearity
Zhuo LJ; Zhang Y(张吟); Zhang, Y (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
Source PublicationINTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS
2015-11
Volume76Pages:1-7
ISSN0020-7462
AbstractUniaxial compressed stiff films on soft substrates can evolve into the period-doubling and folding instabilities, beyond the onset of sinusoidal wrinkling. The substrate is modeled as a neo-Hookean solid with a pre-stretch prior to film attachment, and its nonlinearity is obtained. Both the pre-stretch and the external nominal strain imposed on the film/substrate system can induce different substrate nonlinearity, and thus have different effects on the post-buckling mode evolution of the system. This study shows that the critical strain of period-doubling instability is linear to the pre-stretch. As the compressive nominal strain increases, the folding mode occurs beyond the onset of period-doubling in both the pre-tension and the pre-compression case, due to the softening/hardening effects for the inward/outward displacements generated by the positive substrate nonlinearity. (C) 2015 Elsevier Ltd. All rights reserved.
KeywordPeriod-doubling Folding Neo-hookean Substrate Nonlinearity Pre-stretch
DOI10.1016/j.ijnonlinmec.2015.05.002
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000362135600001
WOS KeywordTHIN-FILMS ; COMPLIANT SUBSTRATE ; ELASTOMERIC POLYMER ; BUCKLING PATTERNS ; WRINKLES ; DEFORMATION ; ELECTRONICS ; INSTABILITY ; MECHANICS ; STRESS
WOS Research AreaMechanics
WOS SubjectMechanics
Funding OrganizationThe research has been supported by the National Natural Science Foundation of China (NSFC no. 11372321).
DepartmentLNM纳/微系统力学与物理力学
Classification二类/Q1
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/58408
Collection非线性力学国家重点实验室
Corresponding AuthorZhang, Y (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Zhuo LJ,Zhang Y,Zhang, Y . From period-doubling to folding in stiff film/soft substrate system: The role of substrate nonlinearity[J]. INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS,2015,76:1-7.
APA Zhuo LJ,张吟,&Zhang, Y .(2015).From period-doubling to folding in stiff film/soft substrate system: The role of substrate nonlinearity.INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS,76,1-7.
MLA Zhuo LJ,et al."From period-doubling to folding in stiff film/soft substrate system: The role of substrate nonlinearity".INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS 76(2015):1-7.
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