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. | |
发表期刊 | INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS |
2015-11 | |
卷号 | 76页码:1-7 |
ISSN | 0020-7462 |
摘要 | Uniaxial 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. |
关键词 | Period-doubling Folding Neo-hookean Substrate Nonlinearity Pre-stretch |
DOI | 10.1016/j.ijnonlinmec.2015.05.002 |
URL | 查看原文 |
收录类别 | SCI ; EI |
语种 | 英语 |
WOS记录号 | WOS:000362135600001 |
关键词[WOS] | THIN-FILMS ; COMPLIANT SUBSTRATE ; ELASTOMERIC POLYMER ; BUCKLING PATTERNS ; WRINKLES ; DEFORMATION ; ELECTRONICS ; INSTABILITY ; MECHANICS ; STRESS |
WOS研究方向 | Mechanics |
WOS类目 | Mechanics |
项目资助者 | The research has been supported by the National Natural Science Foundation of China (NSFC no. 11372321). |
课题组名称 | LNM纳/微系统力学与物理力学 |
论文分区 | 二类/Q1 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/58408 |
专题 | 非线性力学国家重点实验室 |
通讯作者 | Zhang, Y (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. |
推荐引用方式 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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