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Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
International Journal of Energetic Materials and Chemical Propulsion
ESCI SJR: 0.149 SNIP: 0.16 CiteScore™: 0.29

ISSN Печать: 2150-766X
ISSN Онлайн: 2150-7678

International Journal of Energetic Materials and Chemical Propulsion

DOI: 10.1615/IntJEnergeticMaterialsChemProp.2012005987
pages 487-496

EFFECT OF PRODUCT DENSITY ON THE RESISTANCE TO DYNAMIC AND STATIC PRECOMPRESSION OF GASSED EMULSION EXPLOSIVES AND THEIR RECOVERABILITY

Ruilin Yang
Orica USA Inc., 33101 E. Quincy Ave, Watkins, Colorado, 80137

Краткое описание

This paper studied the density effect of the gassed emulsion product on the resistance to static and dynamic precompression. The study revealed that the resistance to precompression of a gassed emulsion is controlled by the void ratio (density) of the product. When the void ratio of the product is below 14%, the resistance to dynamic precompression is only 2000 psi (13.8 MPa), under which the product was dead pressed (failed to initiate). When the void ratio of the product is above 21%, the resistance to dynamic precompression is found to be superior to strong glass microballoon product. However, the current perception that gassed emulsion has an ability to recover from precompression to detonate within a few milliseconds aftershock is not supported by experiments. The resistance to static pressure of gassed products was also measured and found to decrease with the decrease of the void ratio ranging from 24 to 10%. Tests in the study were mainly conducted in a laboratory. Afield trial was conducted with specially designed blast pattern and firing sequence.


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