Techniques employed in origami are of interest for the design of actuating structures with multiple defined geometric states. Most research in this area has focused on manipulating material chemistry or geometry to achieve folding, but crease development through full material thickness has not been studied in detail. Understanding creasing is crucial for establishing material selection guidelines in origami engineering applications. Identification of the precise failure mechanisms is critical for understanding the residual fold angle and selecting optimal materials for specific origami applications. To characterize crease formation and development, polymer films were folded using a modified parallel plate bending technique which was successfully modeled with Euler beam theory in the elastic regime. Fold angles measured after creasing provided a means to quantitatively describe a material’s ability to retain a fold, and degree of plastic deformation incurred during folding. SEM micrographs of creased regions revealed tensile deformations on exterior crease surfaces while compressive deformations such as wrinkling occurred inside. Profilometry was performed on crease interiors to identify and measure wrinkle topology. It was found that increased dissipative plastic deformation led to retention of smaller fold angles. These characterization techniques can be used as a means of classifying and organizing polymers by potential usefulness in structural origami applications.
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ASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
September 8–10, 2014
Newport, Rhode Island, USA
Conference Sponsors:
- Aerospace Division
ISBN:
978-0-7918-4614-8
PROCEEDINGS PAPER
Characterization of Creases in Polymers for Adaptive Origami Structures Available to Purchase
Andrew C. Abbott,
Andrew C. Abbott
UES Inc., Dayton, OH
Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson AFB, OH
University of Dayton, Dayton, OH
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Philip R. Buskohl,
Philip R. Buskohl
UES Inc., Dayton, OH
Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson AFB, OH
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James J. Joo,
James J. Joo
Air Force Research Laboratory, Aerospace Systems Directorate, Wright-Patterson AFB, OH
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Gregory W. Reich,
Gregory W. Reich
Air Force Research Laboratory, Aerospace Systems Directorate, Wright-Patterson AFB, OH
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Richard A. Vaia
Richard A. Vaia
Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson AFB, OH
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Andrew C. Abbott
UES Inc., Dayton, OH
Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson AFB, OH
University of Dayton, Dayton, OH
Philip R. Buskohl
UES Inc., Dayton, OH
Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson AFB, OH
James J. Joo
Air Force Research Laboratory, Aerospace Systems Directorate, Wright-Patterson AFB, OH
Gregory W. Reich
Air Force Research Laboratory, Aerospace Systems Directorate, Wright-Patterson AFB, OH
Richard A. Vaia
Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson AFB, OH
Paper No:
SMASIS2014-7480, V001T01A009; 7 pages
Published Online:
December 8, 2014
Citation
Abbott, AC, Buskohl, PR, Joo, JJ, Reich, GW, & Vaia, RA. "Characterization of Creases in Polymers for Adaptive Origami Structures." Proceedings of the ASME 2014 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; Keynote Presentation. Newport, Rhode Island, USA. September 8–10, 2014. V001T01A009. ASME. https://doi.org/10.1115/SMASIS2014-7480
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