AN ASSESSMENT OF THE THERMOSTRUCTURAL PERFORMANCE AND FEASIBILITY OF USING ROTATED PLY STACKING FOR CARBON-CARBON CLOTH BASED NOZZLE COMPONENTS

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$497,914.00
Award Year:
1992
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Award Id:
17079
Agency Tracking Number:
17079
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
2975 Redhill Ave, Costa Mesa, CA, 92626
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
() -
Business Contact:
() -
Research Institution:
n/a
Abstract
THE SENSITIVITY OF THE THERMOSTRUCTURAL PERFORMANCE OF ROCKET NOZZLES TO CHANGES IN CARBON-CARBON COMPOSITE MATERIAL PROPERTIES HAS BEEN A SIGNIFICANT PROBLEM. RESULTSOF AN AIR FORCE STUDY HAVE CLEARLY INDICATED THAT SIGNIFICANT GAINS IN STRUCTURAL RELIABILITY COULD BE ACHIEVED BY ADOPTING A ROTATED PLY STACKING SEQUENCE WITH WCA-BASED, TWO-DIMENSIONAL CARBON-CARBONS. THIS PROJECT WILL EXAMINE THE POTENTIAL FOR IMPROVEMENT AFFORDED BY USING A ROTATED PLY STACKING SEQUENCE. THE STUDY WILL ENTAIL CONDUCTING THERMOSTRUCTURAL ANALYSES OF THE CCT-4 MOTOR, USING A CARBON-CARBON EXIT CONE THAT FEATURES A ROTATED PLY CONSTRUCTION. A QUANTITATIVE ASSESSMENT WILL BE MADE OF THE DEGREE OF IMPROVEMENT AFFORDED BY A ROTATED PLY CONSTRUCTION; THE OPTIMUM PLY STACKING ARRANGEMENT WILL BE IDENTIFIED AS WELL. PRODUCEABILITY STUDIES WILL BE CONDUCTED WITH INFORMATION FROM MATERIAL SUPPLIERS; THEY WILL ASCERTAIN THE FEASIBILITY OF MANUFACTURING ROTATED PLY PATTERNS SUITABLE FOR CARBON-CARBON, CLOTH-NOZZLE COMPONENTS, AS WELL AS IDENTIFY ANY POTENTIAL DIFFICULTIES OR LIMITATIONS INHERENT IN ROTATED PLY CONSTRUCTION. THE SENSITIVITY OF THE THERMOSTRUCTURAL PERFORMANCE OF ROCKET NOZZLES TO CHANGES IN CARBON-CARBON COMPOSITE MATERIAL PROPERTIES HAS BEEN A SIGNIFICANT PROBLEM. RESULTSOF AN AIR FORCE STUDY HAVE CLEARLY INDICATED THAT SIGNIFICANT GAINS IN STRUCTURAL RELIABILITY COULD BE ACHIEVED BY ADOPTING A ROTATED PLY STACKING SEQUENCE WITH WCA-BASED, TWO-DIMENSIONAL CARBON-CARBONS. THIS PROJECT WILL EXAMINE THE POTENTIAL FOR IMPROVEMENT AFFORDED BY USING A ROTATED PLY STACKING SEQUENCE. THE STUDY WILL ENTAIL CONDUCTING THERMOSTRUCTURAL ANALYSES OF THE CCT-4 MOTOR, USING A CARBON-CARBON EXIT CONE THAT FEATURES A ROTATED PLY CONSTRUCTION. A QUANTITATIVE ASSESSMENT WILL BE MADE OF THE DEGREE OF IMPROVEMENT AFFORDED BY A ROTATED PLY CONSTRUCTION; THE OPTIMUM PLY STACKING ARRANGEMENT WILL BE IDENTIFIED AS WELL. PRODUCEABILITY STUDIES WILL BE CONDUCTED WITH INFORMATION FROM MATERIAL SUPPLIERS; THEY WILL ASCERTAIN THE FEASIBILITY OF MANUFACTURING ROTATED PLY PATTERNS SUITABLE FOR CARBON-CARBON, CLOTH-NOZZLE COMPONENTS, AS WELL AS IDENTIFY ANY POTENTIAL DIFFICULTIES OR LIMITATIONS INHERENT IN ROTATED PLY CONSTRUCTION.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government