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10 мм

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10 мм

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  1. DISSIPATION OF EXPLOSIVE ENERGY BY SOLID CELLULAR MATERIALS: EXPERIMENTAL EVALUATION R. D. Kapustin1, L. B. Pervukhin.1, P. A. Nikolaenko1, A. D. Chudnovskii2, and A. G. Kazantsev21 Institute of Structural Macrokinetics and Materials Science, Chernogolovka, Moscow, 142432 Russia 2 Central Research Institute for Machinery Industry (TsNIITMash), Moscow, Russia

  2. As is known,from the published data, gas-liquid foams most effectively use for effective dissipation of shock energy. But gas-liquid foams exhibit a restricted service life. In this work, we explored the applicability of solid refractory foams for the above purpose.

  3. Purpose of the work - to determine the effectiveness of the dissipation of explosive energy by solid porous materials (solid foams). In the represented work is investigated the possibility of application for the dissipation of the shock waves of the solid aluminosilicate porousmaterialsVBF of the production company Privately held company NPKF “MaVR”.

  4. А Б 10 мм HEAT-RESISTANT PARTICULAR LIGHT CELLULAR MATERIAL – OF THE MARK WCF

  5. EXPERIMENTAL MODEL 1 – Cellular material WCF; 2 – the strain gauge; 3 – explosive charge (TNT); 4 – the electric detonator; 5 – camera for the electric detonator and opening for wires or detonation cord; 6 – metall shell of the experimental model;

  6. THE CALCULATIONOF THE EFFICIENCY OF SHOCK ENERGY DISSIPATION QV = 1,4/0,14 = 10 MJ/m3 = 10 J/sm3 QV – volumetric energy-absorption of material WCF; QП – the quantity of energy, absorbed by material WCF according to the results of the tests of experimental models; V – the volume of material WCF in the experimental models

  7. CONCLUSIONS • 1) Is developed the procedure of the experimental determination of the energy-dissipate ability of the solid cellular materials by the method of their accomodation into closed metal shell from a change in the deformation of this of shell. • 2) The foamy materials under investigation showed good results: the efficiency of shock energy dissipation was found to attain a value of about 10 J/cm3. Material WSF with the volume of 1 m3 absorbs the energy, isolated with explosion of the charge of TNT by the mass of 2,4 kg.

  8. THANK YOU FORATTENTION!

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