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PHYSICALLY BASED FAILURE CRITERIA FOR CARBON-PHENOLIC

Award Information

Agency:
National Aeronautics and Space Administration
Branch:
N/A
Award ID:
12053
Program Year/Program:
1990 / SBIR
Agency Tracking Number:
12053
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
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1990
Title: PHYSICALLY BASED FAILURE CRITERIA FOR CARBON-PHENOLIC
Agency: NASA
Contract: N/A
Award Amount: $50,000.00
 

Abstract:

CARBON-PHENOLIC MATERIALS HAVE BEEN WIDELY USED IN SOLID ROCKET MOTORS (SRMS) FOR MANY YEARS, DESPITE THE FACT THAT THEIR THERMOSTRUCTURAL BEHAVIOR HAS NOT BEEN WELL UNDERSTOOD. THE APPLICATION OF CARBON-PHENOLIC TO THE MAN-RATED SPACE SHUTTLE SRMS, HOWEVER, HAS NECESSITATED THE CAPABILITY FOR ACCURATE ANALYSIS, INCLUDING FAILURE PREDICTION, OF THIS MATERIAL. THIS PROPOSAL SEEKS TO ADDRESS THIS PROBLEM THROUGH THE CREATION OF A PHYSICALLY BASED FAILURE CRITERION FOR CARBONPHENOLIC. BY "PHYSICALLY BASED" IT IS MEANT THAT THE FAILURE CRITERION MATHEMATICAL FORMULATION WILL BE BASED ON PHYSICAL MATERIAL PARAMETERS OBSERVED FROM TEST DATA. THIS IS OPPOSED TO A PURELY MATHEMATICAL "CURVE FIT" CRITERION WHICH MERELY SEEKS TO FIT TEST DATA. THIS CRITERION WILL SEPARATELY ADDRESS THREE DISTINCT PHASESOF CARBON-PHENOLIC BEHAVIOR THROUGHOUT ITS TEMPERATURE RANGE: THE LOW TEMPERATURE, PYROLYSIS AND HIGH TEMPERATURE PHASES. WITHIN EACH OF THESE PHASES MATERIAL FAILURE MODES,PROCESSING VARIABLES, STATISTICAL BEHAVIOR AND CRITICAL SIZE EFFECTS WILL BE CONSIDERED. THIS PROGRAM WILL MAKE USE OF MANY RECENT AND CONCURRENT PROGRAMS TO ACHIEVE ITS OBJECTIVES.

Principal Investigator:

John P. Norman
Member Of Technical Staff
7145408900

Business Contact:

Lynn sheridan
CONTRACTS ADMINISTRATOR
7145408900
Small Business Information at Submission:

Pda Engineering
2975 Redhill Avenue Costa Mesa, CA 92626

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