A NONLINEAR VISCOELASTIC CONSTITUTIVE MODEL FOR SOILD PROPELLANT

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: N/A
Agency Tracking Number: 5837
Amount: $49,847.00
Phase: Phase I
Program: SBIR
Awards Year: 1987
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Failure Analysis Assocs
Po Box 51470 - 2225 E Bayshore, Palo Alto, CA, 94303
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 MICHAEL A BURKE
 (415) 856-9400
Business Contact
Phone: () -
Research Institution
N/A
Abstract
FAILURE ANALYSIS ASSOCIATES (FAAA) PROPOSES TO EVALUATE A NONLINEAR VISCOELASTIC CONSTITUTIVE LAW FOR MODELING THE RESPONSE OF SOLID ROCKET PROPELLANT. THIS CONSTITUTIVE LAW, WHICH IS BASED ON MODIFIED COLEMAN-NOLL MODEL, IS KNOWN AS THE BURKE MODEL, AFTER ITS DEVELOPER, DR MICHAEL A BURKE OF FAAA. THE BURKE MODEL HAS BEEN SUCCESSFULLY EMPLOYED TO ACCURATELY PREDICT THE BEHAVIOR OF POLYMERS AND RUBBER MATERIALS, BUT HAS NOT BEEN APPLIED TO PROPELLANT. IN THIS PROJECT, ALGORITHMS WILL BE DEVELOPED FOR THE BURKE MODEL AND FOR THE ANCILLARY CODE REQUIRED TO DERIVE MODEL COEFFICIENTS FROM TEST DATA. PROPELLANT BEHAVIOR PREDICTED USING THESE ALGORITHMS WILL BE COMPARED WITH EXISTING PROPELLANT TEST DATA TO PROVIDE A MEASURE OF THE ACCURACY AND APPLICABILITY OF THE BURKE MODEL. IF SUCCESS IS ACHIEVED, THE BURKE MODEL COULD THEN BE EXTENDED AND INCORPORATED INTO A FINITE ELEMENT CODE FOR USE IN THE ANALYSIS OF SOLID ROCKET MOTORS.

* 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
Environmental Protection Agency logo
National Aeronautics and Space Administration logo
National Science Foundation logo
US Flag An Official Website of the United States Government