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GENERALIZED FAILURE CRITERIA FOR LAMINATED CARBON-CARBON

Award Information

Agency:
National Aeronautics and Space Administration
Branch:
N/A
Award ID:
10515
Program Year/Program:
1990 / SBIR
Agency Tracking Number:
10515
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Pda Engineering
2975 Redhill Avenue Costa Mesa, CA 92626
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 1990
Title: GENERALIZED FAILURE CRITERIA FOR LAMINATED CARBON-CARBON
Agency: NASA
Contract: N/A
Award Amount: $500,000.00
 

Abstract:

THE WESTAR/PALAPA SATELITE LAUNCH EVENTS, IN WHICH TWO-DIMENSIONAL (2D) CARBON-CARBON (C-C) ROCKET NOZZLE EXIT CONES FAILED AND CAUSED A LOSS OF MISSION, POINTS GRAPHICALLY TO THE INADEQUACIES OF THE DESIGN -ANALYSIS- MANUFACTURING -TEST- AND INSPECTION PROCESS. WE BELIEVE THAT THE LACK OF UNDERSTANDING OF THE MECHANICAL BEHAVIOR OF 2D C-C IS THE LEADING CONTRIBUTOR TO THE PRESENTLY UNACCEPTABLE CONDITION. THE PROPOSED PROJECT IS PLANNED TO REMEDY THIS PROBLEM BY EVOLVING A PHYSICALLY BASED FAILURE CRITERION FOR 2D C-C TO BE USED IN DESIGN/ANALYSIS. THE KEYFACTOR IN THIS WORK IS ESTABLISHMENT OF A "PHYSICAL BASIS". THIS WILL ENABLE THE RESULTS TO ALSO BE USEFUL IN ALL FACETSOF THE MECHANICAL ENGINEERING OF 2D C-C INCLUDING IMPROVED PROCESSING, BETTER INSPECTION AND CLEARER TESTING GOALS. CURRENT AND PREVIOUSLY CONDUCTED PROGRAMS HAVE PROVIDED MUCH OF THE 2D C-C TEST DATA NEEDED FOR THIS PROJECT, BUT THESE PROGRAMS HAVE ONLY BEGUN TO ILLUMINATE THE PHYSICAL FACTORS INFLUENCING STRESS-STATE INTERACTIONS AND MATERIAL STRENGTH VARIABILITY. THIS PROJECT PROPOSES TO DIG DEEPER INTO EXISTING DATA AND RESULTS AND TO CONDUCT THE ADDITIONALWORK NECESSARY TO ACHIEVE A METHODOLOGY WHICH WILL LEAD TO THE DESIRED LEVEL OF CONFIDENCE IN SOLID ROCKET MOTOR RELIABILITY.

Principal Investigator:

Douglas A Marx

Business Contact:

Small Business Information at Submission:

Pda Engineering
2975 Redhill Ave Costa Mesa, CA 92626

EIN/Tax ID:
DUNS: N/A
Number of Employees: N/A
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No