For morphing wing skin applications, low in-plane stiffness is advantageous to reduce the cost of actuation and high out-of-plane stiffness is required to withstand the aerodynamic loads. A proposed solution is to engineer a composite material made of a honeycomb support combined with a multi-state infill that can reduce the Young’s modulus for a low in-plane stiffness. Assuming thin beam theory and using the potential energy formulation, equivalent in-plane Young’s moduli can be calculated for a range of honeycomb cell geometries. The out-of-plane deflection of a representative plate fixed on all edges is calculated using flat plate theory and used to assess the performance of the skin system. To optimize the cell geometry for a given application, the out-of-plane deflection is constrained and the honeycomb cell geometry varied to investigate the design space. Results show that a skin can be designed to have in-plane Young’s moduli similar to the polymer infill and still have a low out-of-plane deflection. However, these results come at the expense of increased skin weight. Further analysis to obtain a more realistic design is done by imposing weight and geometric constraints.
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ASME 2012 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
September 19–21, 2012
Stone Mountain, Georgia, USA
Conference Sponsors:
- Aerospace Division
ISBN:
978-0-7918-4509-7
PROCEEDINGS PAPER
Design of a Morphing Skin by Optimizing a Honeycomb Structure With a Two-Phase Material Infill Available to Purchase
John Puttmann,
John Puttmann
University of Dayton Research Institute, Dayton, OH
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Richard Beblo,
Richard Beblo
University of Dayton Research Institute, Dayton, OH
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James Joo,
James Joo
Air Force Research Laboratory, Wright-Patterson Air Force Base, OH
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Brian Smyers,
Brian Smyers
Air Force Research Laboratory, Wright-Patterson Air Force Base, OH
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Gregory Reich
Gregory Reich
Air Force Research Laboratory, Wright-Patterson Air Force Base, OH
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John Puttmann
University of Dayton Research Institute, Dayton, OH
Richard Beblo
University of Dayton Research Institute, Dayton, OH
James Joo
Air Force Research Laboratory, Wright-Patterson Air Force Base, OH
Brian Smyers
Air Force Research Laboratory, Wright-Patterson Air Force Base, OH
Gregory Reich
Air Force Research Laboratory, Wright-Patterson Air Force Base, OH
Paper No:
SMASIS2012-8131, pp. 169-175; 7 pages
Published Online:
July 24, 2013
Citation
Puttmann, J, Beblo, R, Joo, J, Smyers, B, & Reich, G. "Design of a Morphing Skin by Optimizing a Honeycomb Structure With a Two-Phase Material Infill." Proceedings of the ASME 2012 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. Volume 1: Development and Characterization of Multifunctional Materials; Modeling, Simulation and Control of Adaptive Systems; Structural Health Monitoring. Stone Mountain, Georgia, USA. September 19–21, 2012. pp. 169-175. ASME. https://doi.org/10.1115/SMASIS2012-8131
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