On the elastic stability of folded rings in circular and straight states
On the elastic stability of folded rings in circular and straight states
复制标题
折叠环在圆状态和直状态下的弹性稳定性
DOI:
10.1016/j.euromechsol.2023.105041
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发表时间:
2023
期刊:
影响因子:
--
通讯作者:
Hutchinson, John W.
中科院分区:
文献类型:
--
作者:
Leanza, Sophie;Zhao, Ruike Renee;Hutchinson, John W.
Single-loop elastic rings can be folded into multi-loop equilibrium configurations. In this paper, the stability of several such multi-loop states which are either circular or straight are investigated analytically and illustrated by experimental demonstrations. The analysis ascertains stability by exploring variations of the elastic energy of the rings for admissible deformations in the vicinity of the equilibrium state. The approach employed is the conventional stability analysis for elastic conservative systems based on the second variation of the system energy which differs from most of the analyses that have been published on this class of problems, as will be illustrated by reproducing and elaborating on several problems in the literature. In addition to providing solutions to two basic problems, the paper analyses and demonstrates the stability of six-sided rings, curved-sided hexagrams, that fold into straight configurations.
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DOI:
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1996
期刊:
Proceedings of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences
影响因子:
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2005
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