Research Article | OPEN ACCESS
Deformation Evaluation Due to Poisson's Ratio Variation of Coated Fabric for Airship Envelope
Yufeng Chen and Wujun Chen
Space Structure Research Center, Shanghai Jiao Tong University, Shanghai 20030, P.R. China
Research Journal of Applied Sciences, Engineering and Technology 2014 7:1287-1293
Received: April 12, 2013 | Accepted: May 18, 2013 | Published: February 20, 2014
Abstract
To target to evaluate the deformation due to only Poisson’s ratio variation of coated fabric for airship envelop, series biaxial extension tests were carried out for a particular envelop Uretek3216 and the mechanical property parameters were calculated accordingly from the plain composite theory. On the basis of elastic engineering theory, three typical cases of tension ratio 1:1, 1:2 and 1:1~1:2 were proposed for evaluation on Poisson’s ratio variation, which is cruciform specimen, inflatable fabric beam and streamline airship. Parametric analysis was carried out for each case through numerical simulation. And the geometry dimension effect was also investigated with scaled model. The significant deformation variation of airship is found from only Poisson’s ratio variation, Poisson ratio variation is necessary to be considered for accurate deformation predication of large flexible airship. The presented work is valuable to numerical analysis and engineering design for non-rigid airship structures.
Keywords:
Airship envelope, coated fabric, deformation evaluation, geometry dimension effect, poisson, tension ratio,
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Competing interests
The authors have no competing interests.
Open Access Policy
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Copyright
The authors have no competing interests.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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