期刊
JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES
卷 20, 期 4-6, 页码 578-583出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jlp.2007.05.007
关键词
critical diameter; critical thickness; detonation; emulsion explosive; failure mechanism
The critical diameter and critical thickness of two heterogeneous explosives were measured experimentally. By comparing these experimentally determined values of critical diameter and critical thickness, the role of front curvature in the failure of the detonation can be investigated. Current theories of detonation based on front curvature would predict the critical diameter should be twice the critical thickness. Experimentally, the expected two-to-one ratio was only validated for the case of a heterogeneous explosive with very fine scale heterogeneities. The ratios of critical diameter to critical thickness (for the two selected explosives) are also compared to previously measured values for homogeneous (liquid) explosives in order to contrast the dominant failure mechanism in these different explosives. (C) 2007 Elsevier Ltd. All rights reserved.
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