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The transit to detonation in high explosives

DOI: 10.1063/12.0000904 DOI Help

Authors: N. K. Bourne (University of Manchester at Harwell) , D. E. Eastwood (University of Manchester at Harwell) , S. Marussi (University of Manchester at Harwell) , G. Parker (Los Alamos National Laboratory) , P. M. Dickson (Los Alamos National Laboratory) , R. C. Atwood (Diamond Light Source) , T. Connolley (Diamond Light Source) , A. Martinez (HSE Science & Research Centre) , D. Wagstaff (HSE Science & Research Centre)
Co-authored by industrial partner: No

Type: Conference Paper
Conference: Shock Compression of Condensed Matter - 2019
Peer Reviewed: No

State: Published (Approved)
Published: November 2020
Diamond Proposal Number(s): 19556

Open Access Open Access

Abstract: Accidents with explosive materials are still too common over 150 years after the patenting of dynamite. The manner by which they transit from burn to detonation (Deflagration to Detonation Transition; DDT) after a random thermal event, such as an electrical arc, or by friction if a package is dropped, is by far the single biggest risk associated with explosives storage and use. However this is a particularly difficult process to observe and quantify. Thus there are no agreed and verified theoretical frameworks for the process and thus no comprehensive predictive modelling capabilities. Recent experiments conducted at the Diamond Synchrotron have yielded ground-breaking, time-resolved observations of DDT. They have pioneered new experimental techniques and opened a new area for fast imaging at synchrotrons. We illustrate critical processes that occur within burning to detonation revealed in this study. These provide a new framework for understanding processes operating and offer the means to handle this class of materials more safely.

Journal Keywords: Deflagration-to-detonation transition; Electric discharges; Synchrotrons; Explosives

Subject Areas: Materials, Chemistry

Instruments: I12-JEEP: Joint Engineering, Environmental and Processing


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