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

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.

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 porous materials VBF of the production company Privately held company NPKF “MaVR”.

10 мм А Б HEAT-RESISTANT PARTICULAR LIGHT CELLULAR MATERIAL – OF THE MARK WCF Main characteristics: The mark of a materialWCF-650 Strength limit on сompression porosity, МPа4 Heat conductivity at temperature of 20°C W/mxk0,2 application temperature1550°С

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;

Strains in metall shell of experimental models, МПа TNT mass, gramm Model without solid aluminosilicate porous material WCF Model with solid aluminosilicate porous material WCF the upper surfaceThe sidethe upper surfaceThe side 20072,28831,842, ,72431, ,3397,2137,8194, ,9423,4

THE CALCULATIONOF THE EFFICIENCY OF SHOCK ENERGY DISSIPATION Q V = 1,4/0,14 = 10 MJ/m3 = 10 J/sm3 Q V – volumetric energy-absorption of material WCF; Q П – 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

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.

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