A curved bistable composite slit tube for deployable membrane structures

This paper uses experimental, numerical and analytical methods to investigate the bistable behavior of a curved bistable composite slit tube (Bi-CST). Using the vacuum bag method, two specimens were prepared and bistable experiments were performed. Two Finite Element Models (FEMs) were presented to...

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Bibliographic Details
Published in:Composites communications 2023-08, Vol.41, p.101648, Article 101648
Main Authors: Liu, Tian-Wei, Bai, Jiang-Bo, Xi, Hao-Tian, Fantuzzi, Nicholas
Format: Article
Language:English
Subjects:
Bistable
Composite slit tube
Failure criterion
Finite element method
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Summary:This paper uses experimental, numerical and analytical methods to investigate the bistable behavior of a curved bistable composite slit tube (Bi-CST). Using the vacuum bag method, two specimens were prepared and bistable experiments were performed. Two Finite Element Models (FEMs) were presented to model the bistable deformation process. Based on the minimum energy principle and three failure criteria, an analytical model to determine the bistable behavior of the curved Bi-CST was proposed, including the strain energy, geometric configuration and stress level. Analytical and numerical results agreed well with experimental results. [Display omitted] •Curved Bi-CST specimens were prepared and bistable experiments were conducted.•Two FEMs were established for simulating the bistable process.•Based on minimum energy principle and three failure criteria, an analytical model was deduced.•The initial longitudinal curvature has little effect on the cross-sectional diameter and failure index.
ISSN:2452-2139
2452-2139
DOI:10.1016/j.coco.2023.101648