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Exploring the material properties of small scale folded structures

Author(s)
Uberti, Megan E
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Massachusetts Institute of Technology. Department of Mechanical Engineering.
Advisor
Daniela Rus.
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M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582
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Abstract
make robotics more readily available to the average person. Although designs for a number of successful printable robots have already been produced, there has been little formal exploration into the materials properties of these structures. Three point bending tests were performed on beams made of the materials and cross-sectional geometries of current designs to determine the bending stiffness of the printable beams currently found in printable robots, particularly the printable quad-rotor frame. As expected the composite acrylic and PEEK triangular beam had the highest bending stiffness El at 4.15 ± 1.67 N*m2. The lowest El was the triangular PEEK beam in its weak configuration at 0.02 ± 0.005 N*m2. 3D printed ABS beams had an unreliable result, with El in the range of 11.7 ± 8.05 N*m2. Overall our experimentally calculated values for El were generally consistent with the theoretically calculated values, providing useful information to inform future design choices and understanding the limitations of printable robot structures.
Description
Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2013.
 
Cataloged from PDF version of thesis.
 
Includes bibliographical references (page 21).
 
Date issued
2013
URI
http://hdl.handle.net/1721.1/83750
Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
Publisher
Massachusetts Institute of Technology
Keywords
Mechanical Engineering.

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