Studies of Internal Displacements in Solid Propellant Grains. (Development of an Elastomer Strain Gage)
Interim rept. Mar 1965-Feb 1967
SOUTHWEST RESEARCH INST SAN ANTONIO TX
Pagination or Media Count:
A strain gage capable of responding to deformations of low modulus structures has been developed. The gages active element is a thin, electrically conductive fluid filled capillary which is encapsulated in a soft polymer material. Devices have been fabricated which posses useful strain range in excess of 80 percent and are sensitive to strain increments less than one percent. Considerable attention has been directed to increasing the gages suppleness to insure a minimum of strain distortion in the gages attachment vicinity. Presented in the report is a brief history of the elastomer gage history along with development trends. Also delineated are the gages fabrication and application procedure and the required readout equipment.
- Test Facilities, Equipment and Methods
- Solid Rocket Propellants