ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Widely known technologies of explosive (X) welding and explosive (X) powdercompaction are based on applications of porous composite solid or liquid explosives. Recent resultson dynamics of X-welding and X-powder compaction are presented and discussed in this paper inthe conceptual context of an orderly oscillating detonation wave (DW), a synergetic phenomenaobserved in detonation of all classes of composite energetic materials, that was discovered inLEDAP in last eight years. Regular instabilities that are induced by oscillating DW, are transmittedthrough the interface of the impacted materials, causing the local instability and fluctuations in bothprocesses, formation of the interfacial waves (X-welding mechanism) and in an initial phase ofpowder compaction. Application of high resolution optical probes (spatial resolution 250 *m,temporal resolution 1 ns, 96 independent channels) allowed the simultaneous registration of theoscillating DW in the X-charge and transmission of oscillations, trough the flyer plate, up to thewelding zone. Similar measurements have been made in experiments with X-compaction oftungsten powder providing the continuous registration of shock wave velocity inside the compactedpowder, its geometrical shape, their instabilities and irregularities
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/18/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.566.135.pdf
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