Light-Activated Shape Memory Composite

Award Information
Agency:
Department of Defense
Branch
Defense Advanced Research Projects Agency
Amount:
$749,994.00
Award Year:
2007
Program:
STTR
Phase:
Phase II
Contract:
W31P4Q-07-C-0282
Award Id:
77891
Agency Tracking Number:
06ST1-0061
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
2750 Indian Ripple Road, Dayton, OH, 45440
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
130020209
Principal Investigator:
Ernie Havens
Chief Engineer
(937) 320-1877
havensde@crgrp.net
Business Contact:
Patrick Hood
President
(937) 320-1877
hoodpj@crgrp.net
Research Institution:
UNIV. OF PITTSBURGH
Allen DiPalma
Office of Research
320 Thackray Hall
Pittsburgh, PA, 15260
(412) 624-4166
Nonprofit college or university
Abstract
Future systems such as morphing aircraft will adapt and reconfigure to accommodate mission needs. These shape changes must allow change while still bearing substantial loads. Fiber-reinforced composites are the preferred reinforcement materials due to their mechanical and lightweight properties suited for meeting the requirements of morphing systems. Although thermally activated shape memory composites have been demonstrated and are progressing rapidly as the state-of-the-art for morphing skins and structures, they possess fundamental limitations, such as switching time and thermal energy, which must be overcome to maximize performance. Additionally, morphing materials under investigation lack stiffness characteristics necessary to prevent undesired out-of-plane deformations. Future morphing systems will require no thermal signature and no time delay while offering low power consumption and improved stiffness. For these requirements, light-activated shape memory polymer (LASMP) holds significant promise. Future morphing systems will also require long life cycles for affordability, electrical conductivity modulation for survivability, reconfigurable thermal flow paths for shape change near hot areas, and color change for camouflage operations in a variety of environments. For these requirements basic shape memory polymer functionality provides an ideal matrix material for further technology integration that will lead to "situationally responsive" systems.

* information listed above is at the time of submission.

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