期刊
EUROPEAN JOURNAL OF MECHANICS A-SOLIDS
卷 58, 期 -, 页码 247-255出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.euromechsol.2016.02.008
关键词
Film and substrate; Step load; Dynamic stability
类别
资金
- Natural Science Foundation of China [11372113, 11472100]
- Central University Funds [2015ZP042]
- Guangdong Provincial Education Department, innovation and strong school [2014ktscx015]
- State Key Laboratory of Explosion Science and Technology (Beijing Institute of Technology) [KFJJ15-20M]
The flexible electronic structure is based on the buckling of a thin film on a compliant substrate. This paper studies the dynamic stability of this structure under a uniaxial step load. Dynamic equilibrium equation is deduced according to the Euler Lagrange equation. The dynamic response of the film is solved analytically by using Jacobi elliptic functions. It is a periodic vibration influenced by the step load. The critical load in dynamic buckling is determined by the characteristics of phase graphs and Budiansky Roth criterion. It is the same as that in static buckling. In dynamic buckling, the amplitude of vibration is larger than that in static buckling. With the increment of the load and initial amplitude, the period of ;vibration decreases. (C) 2016 Elsevier Masson SAS. All rights reserved.
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