期刊
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
卷 43, 期 9, 页码 1497-1504出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2012.03.018
关键词
Lamina/ply; Buckling; Finite element analysis (FEA)
资金
- National Natural Science Foundation of China [10872058]
- Major State Basic Research Development Program of China (973 Program) [2010CB631100]
This paper develops a tri-stable structure that consists of four bi-stable rectangular laminates. The tri-stable structure can exhibit three different stable geometric configurations: plane, concave, and convex configurations. The structure can also be snapped between the various states. The design and fabrication methods of the tri-stable structure using bi-stable rectangular laminates are presented. A two-step finite element simulation is performed to predict the critical load to snap the tri-stable structure and to capture the snap-through process. The predicted curvatures and the critical loads from the finite element analysis show a high agreement with the experimental results. The tri-stable structures and the proposed two-step method should be instructive to design and construct the multi-stable structures and to understand their snap-through process. (c) 2012 Elsevier Ltd. All rights reserved.
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