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Utilizing Photogrammetry and Strain Gage Measurement to Characterize Pressurization of Inflatable ModulesThis paper focuses on integrating a large hatch penetration into inflatable modules of various constructions. This paper also compares load predictions with test measurements. The strain was measured by utilizing photogrammetric methods and strain gages mounted to select clevises that interface with the structural webbings. Bench testing showed good correlation between strain data collected from an extensometer and photogrammetric measurements, even when the material transitioned from the low load to high load strain region of the curve. The full-scale torus design module showed mixed results as well in the lower load and high strain regions. After thorough analysis of photogrammetric measurements, strain gage measurements, and predicted load, the photogrammetric measurements seem to be off by a factor of two.
Document ID
20110014005
Acquisition Source
Johnson Space Center
Document Type
Other
Authors
Mohammed, Anil (Illinois Univ. Urbana-Champaign, IL, United States)
Date Acquired
August 25, 2013
Publication Date
April 29, 2011
Subject Category
Spacecraft Design, Testing And Performance
Report/Patent Number
JSC-CN-23689
Distribution Limits
Public
Copyright
Public Use Permitted.

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