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Optimized Designs of Composite Booms with Tape Spring Hinges

Mallikarachchi, H. M. Y. C. and Pellegrino, S. (2010) Optimized Designs of Composite Booms with Tape Spring Hinges. In: 51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. American Institute of Aeronautics and Astronautics , Reston, VA, Art. No. 2010-2750. ISBN 978-1-60086-961-7. https://resolver.caltech.edu/CaltechAUTHORS:20191016-092056718

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Abstract

This paper presents an optimization study of a lightweight hinge consisting of a thin walled tube made of carbon fiber reinforced plastic with two longitudinal slots. The slot geometry is parameterized in terms of slot length, width and end circle diameter. Previously developed numerical simulation techniques to analyze the folding and deployment of this kind of hinges are used to carry out a series of parametric studies. The maximum strains are estimated by using the mid-surface strain and curvature obtained from a macro model of the structure to a micro model and averaging the strains over a half a tow width in the micro model. A maximum strain failure criterion is used for failure analysis. The optimization study is focused on finding a hinge design that can be folded 180 deg with the shortest possible slot length. Simulations show that the maximum strains can be significantly reduced by allowing the end-cross sections to deform freely. Based on simulations a failure critical model and a failure safe model were selected and experimentally validated. The optimized design is six times stiffer in torsion, twice stiffer axially and stores two and a half times more strain energy than the previously considered design.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.2514/6.2010-2750DOIArticle
ORCID:
AuthorORCID
Pellegrino, S.0000-0001-9373-3278
Additional Information:© 2010 by H.M.Y.C Mallikarachchi and S. Pellegrino. Published by the American Institute of Aeronautics and Astronautics, Inc. with permission.
Group:GALCIT
Other Numbering System:
Other Numbering System NameOther Numbering System ID
AIAA Paper2010-2750
Record Number:CaltechAUTHORS:20191016-092056718
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20191016-092056718
Official Citation:Optimized Designs of Composite Booms with Tape Spring Hinges. H.M.Y.C. Mallikarachchi and Sergio Pellegrino. https://doi.org/10.2514/6.2010-2750 51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. April 2010.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:99293
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:16 Oct 2019 19:20
Last Modified:16 Oct 2019 19:20

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