ANALYSIS OF STABILITY OF STRAIGHT SIDE BUCKLES ON ELASTIC SUBSTRATES

被引：0
作者：
Jia, Haikun [1 ]
Wang, Shibin [1 ]
Goudeau, Philippe
Li, Linan [1 ]
Guo, Zhiming [1 ]
机构：
[1] Tianjin Univ, Dept Mech, Tianjin 300072, Peoples R China
来源：
ICEM15: 15TH INTERNATIONAL CONFERENCE ON EXPERIMENTAL MECHANICS | 2012年
关键词：
thin film; buckling; finite element method;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We deposited 150nm thick aluminum films on organic glass (PMMA) substrates by using the magnetron sputtering process. The parallel straight side buckles are produced by an axial compressive load of the film/substrate set. The buckle's pattern is recorded using an optical microscope (2000X). The transformation from straight side buckles to telephone cord buckles is investigated and simulated. A finite element model for quasi-static buckling is introduced to analyse the instability of straight side buckles. It is found that the secondary buckling (bifurcation) of straight side buckles is influenced by the residual stress in the longitudinal direction.
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页数：6
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