Studies of Internal Displacements in Solid Propellant Grains. (Study of Deformation Surface in Strain Space).
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 20, 1967
- Accession Number
- AD0748630
Entities
People
- Jarvis D. Michie
- Leonard U. Rastrelli
Organizations
- Southwest Research Institute