Rigid polyurethane foam as an efficient material for shock wave attenuation

International Workshop on Physical and Chemical Processes in Atomic Systems

Komissarov, P.V.^1,2 ; Borisov, A.A.^1,2 ; Sokolov, G.N.^2 ; Lavrov, V.V.^3

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Kashirskoe highway 31, Moscow

115409, Russia^1

N.Semenov Institute of Chemical Physics, Russian Academy of Sciences, Moscow

119991, Russia^2

Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Moscow region

142432, Russia^3

关键词: Blast waves;    Damping device;    Distributed structures;    Explosive charges;    Rigid polyurethane foams;    Shock wave attenuations;    Traditional techniques;    Wave parameters;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/751/1/012020/pdf
DOI  :  10.1088/1742-6596/751/1/012020

来源: IOP

【 摘 要 】

A new method for reducing parameters of blast waves generated by explosions of HE charges on ground is presented. Most of the traditional techniques reduce the wave parameters at a certain distance from the charge, i.e. as a matter of fact the damping device interacts with a completely formed shock wave. The proposed approach is to use rigid polyurethane foam coating immediately the explosive charge. A distributed structure of such a foam block that provides most efficient shock wave attenuation is suggested. Results of experimental shock wave investigations recorded in tests in which HE charges have been exploded with damping devices and without it are compared.