SMALL BLAST LOAD GENERATOR TESTS USING M - 9 PROPELLANT,
Abstract
The primary objective of this study was to determine the pressure-time signatures that are produced in the Small Blast Load Generator (SBLG) bonnet and firing tube chamber by detonating a charge of M-9 propellant. A secondary objective was to obtain information which would contribute to a better understanding of the heat-absorbing characteristics of the firing tubes and bonnet. Four dynamic shots ranging from 83 to 199 psi were made in the SBLG using M-9 propellant and detonating cord. Pressure was measured in the bonnet (free-air overpressure) and within one of the firing tubes, and temperature was measured on the inside and outside surfaces of the bonnet, on the outside surface of one of the firing tubes, and in the gas within the bonnet. The pressure-time histories in the generator bonnet were approximately the same when either the M-9 propellant base charge or detonating cord was used as the charge. The relation of peak pressure in the firing tubes to peak pressure in the bonnet was linear. The temperature measurements on and in the bonnet and firing tube were inconclusive because the gages were damaged during the blast. However, the results obtained indicated that the temperature of the generator inner surface changes only slightly, no more than 5 F at 3 sec after detonation. The temperature of the gases within the bonnet reaches approximately 2000 F. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1967
- Accession Number
- AD0660348
Entities
People
- J. R. Hossley