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Gossamer|Lightweight Space Structures|Static and Dynamic Characterization|Physics-based Hybrid Modeling|Photogrammetry
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New Ultra-Lightweight Stiff Panels For Space Apertures, Jonathan T. Black
New Ultra-Lightweight Stiff Panels For Space Apertures, Jonathan T. Black
University of Kentucky Doctoral Dissertations
Stiff, ultra-lightweight thermal-formed polyimide panels considered in this dissertation are examples of next generation gossamer structures that resolve some of the technology barriers of previous, membrane-dominated gossamer designs while maintaining their low mass and low stowage volume characteristics. The research involved statically and dynamically characterizing and modeling several of these panels to develop validated computer models which can be used to determine the effects of changing manufacturing parameters and scalability. Static characterization showed substantial local nonlinear behavior that was replicated by new physics-based finite element models, and global linear bending behavior that was modeled using classical shell finite elements incorporating …