期刊
MATERIALS & DESIGN
卷 147, 期 -, 页码 35-47出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2018.03.028
关键词
Multistable structure; Variable cross-section; Composite laminate; Snap-through
资金
- National Natural Science Foundation of China [11772107, 11372087]
- Foundation for Innovation Research Groups of the National Natural Science Foundation of China [11421091]
This paper presents a multistable variable cross-section laminate (MVCL), which is designed by applying the displacement constraint at the two opposing ends of the laminate. A theoretical model describing the MVCL as rigid bars connected with compliant hinges is built to predict the equilibrium configurations and snap-through loads of the MVCL. The snap-through process of the multistable structure is investigated via experiment and finite element analysis (FEA). Subsequently, the theoretical model is improved by simplifying the middle segment of the MVCL as an elastic beam. Good agreement is obtained between the experimental test, FEA, and improved theoretical model results. It is shown that the current approach can be successfully applied to predict the equilibrium configurations and snap-through loads of an MVCL. The snap-through loads can be adjusted by changing the middle segment length of an MVCL. (C) 2018 Elsevier Ltd. All rights reserved.
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