GROWTH OF BURNING TO DETONATION IN LIQUIDS AND SOLIDS.
Abstract
The initiation and propagation of explosion in liquids and solids has been studied with special reference to the role played by discontinuities in promoting sensitivity, and the deflagration, detonation transition. In liquids the presence of cavities is important in both the initiation and transition to detonation stages of explosion. A detailed study has been made of the phenomena associated with a collapsing cavity such as jetting, heating of the gas in the cavity, and the production of an expansion shock during the rebound phase. The effect of collapsing a bubble by a weak shock (1 kbar) in the neighbourhood of single crystals of azides has been investigated. By careful choice of geometry it was possible to distinguish the relative importance of the various aspects of cavity collapse. In separate experiments it has been shown that thermal decomposition occurs when a fracture propagates through a crystal. The amounts and kinetics of the decomposition have been recorded for various crystal types, and temperatures associated with the fracture process evaluated. (AUTHOR)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1968
- Accession Number
- AD0686105
Entities
People
- D. Tabor
- John Edwin Field
- M. M. Chaudhri
- P. G. Fox
Organizations
- University of Cambridge