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Nonlinear Elastic Buckling of Ultra-Thin Coilable Booms

Leclerc, Christophe and Pellegrino, Sergio (2020) Nonlinear Elastic Buckling of Ultra-Thin Coilable Booms. International Journal of Solids and Structures, 203 . pp. 46-56. ISSN 0020-7683. https://resolver.caltech.edu/CaltechAUTHORS:20200720-095447666

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Abstract

This paper presents a study of the elastic buckling behavior of Triangular Rollable And Collapsible (TRAC) booms under pure bending. An autoclave manufacturing process for ultra-thin composite booms is presented and the behavior of three test samples is investigated experimentally. Two regimes are observed, a pre-buckling regime and a stable post-buckling regime that ends when buckling collapse is reached. The buckling collapse moment, marking the end of the stable post-buckling regime, is typically four times higher than the initial buckling moment. A numerical simulation of the boom behavior with the Abaqus finite element package is presented and all of the features observed experimentally are captured accurately by the simulation, except buckling collapse. The numerical model is also used to study the effect of varying the boom length from 0.3 m to 5.0 m. It is shown that the pre-buckling deformation of the flanges under compression leads to a constant wavelength lateral-torsional buckling mode for which the critical moment is mostly constant across the range of lengths.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1016/j.ijsolstr.2020.06.042DOIArticle
ORCID:
AuthorORCID
Pellegrino, Sergio0000-0001-9373-3278
Additional Information:© 2020 Published by Elsevier Ltd. Received 4 February 2020, Revised 20 May 2020, Accepted 29 June 2020, Available online 18 July 2020.
Group:GALCIT
Subject Keywords:Buckling; Thin-shell; Composite materials; Deployable boom; Space structure
Record Number:CaltechAUTHORS:20200720-095447666
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20200720-095447666
Official Citation:Christophe Leclerc, Sergio Pellegrino, Nonlinear elastic buckling of ultra-thin coilable booms, International Journal of Solids and Structures, Volume 203, 2020, Pages 46-56, ISSN 0020-7683, https://doi.org/10.1016/j.ijsolstr.2020.06.042. (http://www.sciencedirect.com/science/article/pii/S002076832030264X)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:104443
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:20 Jul 2020 17:20
Last Modified:06 Aug 2020 23:02

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