Accession Number:

AD0893748

Title:

Solid Propellant Structural Test Vehicle Program

Descriptive Note:

Final rept. 1 May 1970-30 Sep 1971

Corporate Author:

LOCKHEED PROPULSION CO REDLANDS CA

Report Date:

1972-04-01

Pagination or Media Count:

332.0

Abstract:

Results of the third year of the Structural Test Vehicle STV program conducted by Lockheed Propulsion Company for AFRPL are presented. Improved computer codes were used for viscoelastic analyses of a diaphragm gage in a uniaxial propellant specimen subject to constant stress, constant strain, and cyclic tests. A three-dimensional computer code was used to analyze a shear cube under simple loading conditions and to confirm experimental findings that the interference problem is minimal and that a slight cross sensitivity exists. Experimental data show the performance of shear gages in a biaxial diametral compression stress field and under cyclical shear loading. Results of restrained cooling and heating tests are presented and compared with analysis. Dilatational experimental and analytical work suggests an improved approach for the determination of thermal strain in a circular port grain. Improved material characterization techniques are also described. Results of thermal cycling and cooling experiments on 4-point-star, inert-propellant STV No. 6 are given. Gage readings measured during the tests are discussed and compared with analysis. A technique for removal of gages from old motors and STVs by chemical milling is discussed. Finally a modified system is described for coding microfilm data of STV, and inert propellant and gage calibration data.

Subject Categories:

  • Test Facilities, Equipment and Methods
  • Solid Rocket Propellants

Distribution Statement:

APPROVED FOR PUBLIC RELEASE