Gas-cumulative launching device for acceleration of steel and titanium spherical elements of mass 0.2-2.1 g to velocity 3-7.5 km/s
| Autor: | Valery Yu. Meltsas, Vitaly I. Chizhov, Georgy S. Smirnov, Viktor S. Zimalin, Evgeny P. Dyakin, Natalia I. Shustova, Oleg N. Polevoi, Yury N. Chikin, Evstafy L. Yamolkin, Andrey A. Demidov, Gennady V. Belov |
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| Rok vydání: | 2003 |
| Předmět: |
Materials science
Computer simulation Projectile business.industry Mechanical Engineering Flow (psychology) Aerospace Engineering chemistry.chemical_element Ocean Engineering Mechanics Structural engineering Acceleration chemistry Impact crater Mechanics of Materials Automotive Engineering Fracture (geology) Dynamic pressure Safety Risk Reliability and Quality business Civil and Structural Engineering Titanium |
| Zdroj: | International Journal of Impact Engineering. 29:105-116 |
| ISSN: | 0734-743X |
| DOI: | 10.1016/j.ijimpeng.2003.09.012 |
| Popis: | The paper presents the results of experimental and calculated determinations of the operational characteristics of a gas-cumulative launching device of the type known as "Titov's accelerator". The parameters of the explosion products flow in this device, which depend on structural factors, were determined by the numerical simulation using a two-dimensional hydrodynamic code. Values of the static and dynamic pressure applied to the projectile at various phases of acceleration were calculated. Experimental conditions are shown in which 5.5-8 mm diameter steel and titanium projectiles were accelerated to velocities of 3-7.5 km/s with low probability of fracture. Ablation experienced by the projectile during acceleration was determined using the x-rayography. Ablation of titanium projectiles during acceleration can reach a half of their initial mass. This paper presents data on parameters of craters in simple targets and the influence of ablation of the projectiles on crater size and shape. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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