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Shape Recovery of Viscoelastic Deployable Structures

Kwok, Kawai and Pellegrino, Sergio (2010) Shape Recovery of Viscoelastic Deployable Structures. In: 51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. American Institute of Aeronautics and Astronautics , Reston, VA, Art. No. 2010-2606. ISBN 978-1-60086-961-7. https://resolver.caltech.edu/CaltechAUTHORS:20191016-090847709

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Abstract

The paper investigates the shape recovery behavior of a simple beam and a tape spring made of LDPE under prescribed deformation history at room temperature. The linear viscoelastic material properties of LDPE were measured via creep tests. An analysis of a LDPE beam under four-point bending with an imposed history of vertical deflection and reaction force was performed. A theoretical solution was constructed by employing the Alfrey’s Correspondence Principle to the Euler-Bernoulli beam equation. The result was validated against a four-point bending experiment and a detailed nonlinear finite element simulation. Excellent agreement was obtained between theory, experiments and numerical simulations. A LDPE tape spring was fabricated and tested to provide an example of a simple deployable structure that recovers its deployed shape through a viscoelastic process for both equal sense and opposite sense folding.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.2514/6.2010-2606DOIArticle
ORCID:
AuthorORCID
Kwok, Kawai0000-0001-6876-4267
Pellegrino, Sergio0000-0001-9373-3278
Additional Information:© 2010 by K. Kwok 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 Paper2010-2606
Record Number:CaltechAUTHORS:20191016-090847709
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20191016-090847709
Official Citation:Shape Recovery of Viscoelastic Deployable Structures. Kawai Kwok and Sergio Pellegrino. 51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. April 2010. https://doi.org/10.2514/6.2010-2606
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:99292
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:16 Oct 2019 19:14
Last Modified:16 Oct 2019 19:14

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