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:
This paper presents the design of a compact size projectile accelerator, and itsapplication. To meet the various needs such as a compact body size to use under various experimentalconditions, an easy maintenance for repetitive experiments during a certain period, and a capability ofthe velocity control, the compact accelerators were newly designed with a direct explosive drivemethod. Two different types of accelerator were designed: a PMMA accelerator and a metalaccelerator. The pictures of the projectile shoot using the designed accelerators were recorded bySHIMADZU HyperVision HPV-1 high-speed video camera. As a result, it was recognized that thePMMA accelerator was failed to accelerate the projectile, while the metal accelerator succeeded toaccelerate it effectively. The accelerating performance of the metal accelerator was furtherinvestigated. The explosives for projectile acceleration were Emulsion explosive and CompositionC4 explosive weighing 5 to 35g. It was found that the metal accelerator has the capability to controlthe projectile velocity adjusting the weight of the explosives, and there is an approximate linearcorrelation between them in our experimental range. A series of impact tests on 5052S aluminumalloy targets was examined using the accelerator
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/18/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.566.35.pdf
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