Energy storage and dissipation in polyurea composites

Polyurea composites have been of interest for a variety of engineering applications for 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 dissipatio 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.

Department dc:contributor.department

Mechanical Engineering

Grantor dc:publisher

Monterey California. Naval Postgraduate School

Year dc:date.issued

2013

Author dc:creator

• Bodin, Carl

Advisor dc:contributor.advisor

• Boyce, Mary C.

Statement dc:rights

• This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.

Language dc:language.iso

en_US

Handle dc:identifier.uri

https://hdl.handle.net/10945/41621

OAI identifier oai:identifier

oai:calhoun.nps.edu:10945/41621