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Computational and experimental study on dynamic instability of extended bistable carbon/epoxy booms subjected to bending

Wu, Chenchen and Viquerat, Andrew (2018) Computational and experimental study on dynamic instability of extended bistable carbon/epoxy booms subjected to bending Composite Structures, 188. pp. 347-355.

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Abstract

Bistable reeled composite booms (BRCs) constructed from braided carbon/epoxy plies are suitable candidates for use as extendible booms or as elements of large deployable space structures. However, without modification, BRCs have an open section which limits their torsional stiffness, and makes them prone to collapse under low bending moments. In this study a “roll-up” deployable photovoltaic (PV) solar array with two side-by-side extendible BRCs is used as a case study to numerically analyse the dynamic behaviours of BRCs on spacecraft undergoing rotational manoeuvres. The BRCs have rotational accelerations applied to their roots to simulate the effect of being attached to a manoeuvring spacecraft. Budiansky-Hutchinson criterion is used to define an instability failure point based on a change in cross-sectional shape. This was used to estimate the maximum angular acceleration. While it is extremely difficult to replicate the behaviour of a large flexible lightweight structure in microgravity on the ground, an experiment to determine the point of collapse of BRCs under gravity were used to verify the simulation results.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Mechanical Engineering Sciences
Authors :
NameEmailORCID
Wu, Chenchenchenchen.wu@surrey.ac.ukUNSPECIFIED
Viquerat, Andrewa.viquerat@surrey.ac.ukUNSPECIFIED
Date : 10 January 2018
Identification Number : 10.1016/j.compstruct.2018.01.029
Copyright Disclaimer : © 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Uncontrolled Keywords : Bistable composites, Dynamic stability, Numerical analysis, Solar array
Related URLs :
Depositing User : Melanie Hughes
Date Deposited : 11 Jan 2018 11:35
Last Modified : 06 Feb 2018 11:38
URI: http://epubs.surrey.ac.uk/id/eprint/845578

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