Deformation, Fracture and Explosive Properties of Reactive Materials.
Abstract
The report covers four areas of work. The first describes a study of the initiation of HNS under drop-weight impact using high-speed photography. Ignition is shown to take place after rapid mechanical deformation of the sample. The behaviour is compared to that of a range of other explosives. From a comparison of the melting points, yield stresses, flow properties and ignition characteristics it appears that explosives with high strength values are more likely to exhibit rapid mechanical failure and resultant ignition during impact. The report then describes the range of techniques which we have developed for studies of the deformation, strength and ignition properties of explosives. The next section describes the results of a detailed study of the decomposition of PETN using time-of-flight mass spectrometry. Finally, an experimental study is described in which the deformation stress of millimeter-size single crystals of explosive materials has been determined using a novel experimental technique. Originator supplied keywords include: Explosives, Ignition, Impact, Sensitiveness, Hot spots, Decomposition, Kinetics, Deformation, Fracture, PBX's, HMX, HNS, and PETN.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1985
- Accession Number
- ADA154073
Entities
People
- G. M. Swallowe
- John Edwin Field
- K. Mohan
- M. M. Chaudhri
- W. L. Ng
Organizations
- University of Cambridge