Energy storage and dissipation in polyurea composites
Name
858807191-MIT.pdf
Description
Full printable version
Size
17.61 MB
Format
Adobe PDF
Checksum (MD5)
aa23059357fcb57cecb5139a64717934
Author(s)
Bodin, Carl (Carl Kenneth)
Advisor(s)
Mary C. Boyce.
Date Issued
2013
Publisher
Massachusetts Institute of Technology
Abstract
Polyurea composites have been of interest for a variety of engineering applications via their highly dissipative yet resilient behavior under deformation. Polyurea composites have been considered as a self-healing and anticorrosion coating in building applications, and more interestingly, as a lightweight addition to steel armor. In combination with a metal plate, a polyurea layer has been extensively studied under impact and blast loading. In this research, the tunable performance of polyurea sandwich armor composites is explored in modeling and experimentation. Cylindrical arrays comprised of polyurea, a resilient yet dissipative material, enable improved load transmission by utilizing new dissipation and storage pathways due to geometry. Experimentation and computational modeling are used to quantify the dissipation features of the polyurea composite. This research combines a new polyurea interlayer geometry with steel to improve the composite armor blast performance by increasing energy dissipation.
Description
Thesis (Nav. E. and S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2013.
"June 2013." Cataloged from PDF version of thesis.
Includes bibliographical references (p. 87-89).
Subjects
Mechanical Engineering.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
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