Leclerc, Christophe and Pedivellano, Antonio and Pellegrino, Sergio (2018) Stress Concentration and Material Failure During Coiling of Ultra-Thin TRAC Booms. In: 2018 AIAA Spacecraft Structures Conference. American Institute of Aeronautics and Astronautics , Reston, VA, Art. No. 2018-0690. ISBN 9781624105302. https://resolver.caltech.edu/CaltechAUTHORS:20190816-144340271
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Abstract
Ultra-thin TRAC booms are a promising technology for large deployable structures for space applications. A manufacturing process producing composites TRAC booms with flange thickness as low as 53 μm is proposed. Coiling behavior around hub with radii ranging from 19.1 mm to 31.8 mm is studied both experimentally and through finite element simulations. Due to the thinness of the TRAC boom, a buckle appears in the inner flange, in the transition region from the fully deployed to the coiled configurations. Material failure is observed at this location, and this correlates well with stresses computed in simulation, coupled with the fiber microbuckling failure criterion. Reducing the thickness, either by changing the laminate or by improving the manufacturing process, is shown to reduce stresses, allowing coiling around smaller hubs without material failure.
| Item Type: | Book Section | ||||||||
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| Additional Information: | © 2018 American Institute of Aeronautics and Astronautics. The authors acknowledge financial support from the Northrop Grumman Corporation, the Natural Sciences and Engineering Research Council of Canada and the Keck Institute for Space Studies. | ||||||||
| Group: | GALCIT, Keck Institute for Space Studies, Space Solar Power Project | ||||||||
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| DOI: | 10.2514/6.2018-0690 | ||||||||
| Record Number: | CaltechAUTHORS:20190816-144340271 | ||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20190816-144340271 | ||||||||
| Official Citation: | Stress Concentration and Material Failure During Coiling of Ultra-Thin TRAC Booms Christophe Leclerc, Antonio Pedivellano, and Sergio Pellegrino 2018 AIAA Spacecraft Structures Conference. https://doi.org/10.2514/6.2018-0690 | ||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||
| ID Code: | 97963 | ||||||||
| Collection: | CaltechAUTHORS | ||||||||
| Deposited By: | George Porter | ||||||||
| Deposited On: | 22 Aug 2019 17:37 | ||||||||
| Last Modified: | 16 Nov 2021 17:35 |
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