Accession Number:

AD0748630

Title:

Studies of Internal Displacements in Solid Propellant Grains. (Study of Deformation Surface in Strain Space).

Descriptive Note:

Interim rept. 1 Dec 66-1 May 67,

Corporate Author:

SOUTHWEST RESEARCH INST SAN ANTONIO TEX

Report Date:

1967-05-20

Pagination or Media Count:

39.0

Abstract:

An experimental technique is presented whereby surface and subsurface strains are retrieved from elastomer specimens 4 in. x 4 in. x 6 in. being subjected to triaxial stress conditions. Descriptions of the specimens, load fixture, elastomer strain gages and instrumentation readout equipment are given. A unique feature of the system is the utilization of elastomer strain gages which can be embedded in or surface-mounted on the test specimen. These resistance type gages have a useful strain range in excess of 50 percent, and, due to their elastomeric body construction, they induce a minimal strain field distortion in the specimen. In the experiment, the elastomer gages are monitored remotely and the data recorded on an oscillograph. Author

Subject Categories:

  • Mechanics
  • Solid Rocket Propellants

Distribution Statement:

APPROVED FOR PUBLIC RELEASE