High Pressure Solid Propellant Combustion Studies Using a Closed Bomb
Abstract
A self-pressurizing closed-bomb system is described for observing deflagration characteristics of solid propellants at pressures as high as 200,000 psi. Regression rates are obtained by microwave interferometry, a newly-adapted method which eliminates the need for introducing foreign bodies in the forms of wires, probes, etc., into the system. Pressure measurements are made with strain gauges mounted on the exterior of the bomb body, obviating many sealing problems associated with conventional transducers. The relative merits of the available instrumentation are discussed; the principles and limitation of the interferometry technique are treated in detail. Preliminary r-P data for a polybutadiene-acrylic acid composite propellant are reported up to 60,000 psi; results at higher pressures are indeterminate, owing to leakage and lack of high-pressure dynamic calibration equipment.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1965
- Accession Number
- AD0471575
Entities
People
- Richard B. Cole