
Proceedings Paper
Reflexive composites: self-healing composite structuresFormat | Member Price | Non-Member Price |
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Paper Abstract
Cornerstone Research Group Inc. has developed reflexive composites achieving increased vehicle
survivability through integrated structural awareness and responsiveness to damage. Reflexive
composites can sense damage through integrated piezoelectric sensing networks and respond to damage
by heating discrete locations to activate the healable polymer matrix in areas of damage. The polymer
matrix is a modified thermoset shape memory polymer that heals based on phenomena known as
reptation.
In theory, the reptation healing phenomena should occur in microseconds; however, during
experimentation, it has been observed that to maximize healing and restore up to 85 % of mechanical
properties a healing cycle of at least three minutes is required. This paper will focus on work conducted
to determine the healing mechanisms at work in CRG's reflexive composites, the optimal healing cycles,
and an explanation of the difference between the reptation model and actual healing times.
Paper Details
Date Published: 8 April 2008
PDF: 11 pages
Proc. SPIE 6932, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2008, 693211 (8 April 2008); doi: 10.1117/12.776284
Published in SPIE Proceedings Vol. 6932:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2008
Masayoshi Tomizuka, Editor(s)
PDF: 11 pages
Proc. SPIE 6932, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2008, 693211 (8 April 2008); doi: 10.1117/12.776284
Show Author Affiliations
Thomas W. Margraf Jr., Cornerstone Research Group, Inc. (United States)
Thomas J. Barnell, Cornerstone Research Group, Inc. (United States)
Thomas J. Barnell, Cornerstone Research Group, Inc. (United States)
Ernie Havens, Cornerstone Research Group, Inc. (United States)
Christopher D. Hemmelgarn, Cornerstone Research Group, Inc. (United States)
Christopher D. Hemmelgarn, Cornerstone Research Group, Inc. (United States)
Published in SPIE Proceedings Vol. 6932:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2008
Masayoshi Tomizuka, Editor(s)
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