Design and Analysis of Metal-to-Composite Nozzle Extension Joints

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$99,989.00
Award Year:
2011
Program:
SBIR
Phase:
Phase I
Contract:
NNX11CH35P
Award Id:
n/a
Agency Tracking Number:
105081
Solicitation Year:
2010
Solicitation Topic Code:
X2.01
Solicitation Number:
n/a
Small Business Information
PA, Wayne, PA, 19087-1858
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
966563884
Principal Investigator:
CraigIwano
Principal Investigator
(610) 964-9000
craig.iwano@m-r-d.com
Business Contact:
BrianSullivan
Director
(610) 964-6131
brian.sullivan@m-r-d.com
Research Institute:
Stub




Abstract
As the operational demands of liquid rocket engines increases, so too does the need for improved design and manufacturing methods for metal-to-composite nozzle extensions. The state of the art utilizes non-domestic composite materials for nozzle extensions. Although this solution does offer weight savings and increased performance, there is an increase in cost and the addition of Export regulations. Within this effort, Materials Research & Design (MR & D) is proposing an analytical study, coupled with subcomponent fabrication and testing, that would result in a design for a domestically available C-C nozzle extension and metallic-to-composite joint for the J-2X. The proposed study would investigate various mechanical attachment methods, such as mechanical fasteners and adhesives for both the CMC-to-metallic joint and the CMC-to-CMC joint. Additional aspects of the trade study would investigate various flange shapes and materials in order to reduce the critical stresses in the region.

* information listed above is at the time of submission.

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