摘要
采用间接测压法，对爆炸载荷作用下聚氨酯泡沫材料中的冲击波压力特性进行了研究。结果表明，在装药特性相同的爆炸载荷作用下，聚氨酯泡沫材料中的初始冲击波压力随初始孔隙度增大而显著下降；冲击波传播衰减效应受初始孔隙度影响同样显著，但不呈单一加快或减慢趋势；当初始孔隙度在０．２５左右时，聚氨酯泡沫材料对爆炸载荷具有较强的抗冲击减压效能。
Properties of shock pressure caused by explosion loads in polyurethane foam have been studied by means of an indirect experimental method.It is found that under the same charge and explosion condition,the initial shock pressure in polyurethane foam will decrease notably with increasing of the initial porosity.Effects of the initial porosity on propagating attenuation of the shock pressure are also notable,but its tendency is not completely corresponding to tendency of the initial porosity ’s changing.Polyurethane foam with an initial porosity about 0 25 are more effective as protective buffer materials.
出处
《爆炸与冲击》
EI
CAS
CSCD
北大核心
1999年第1期78-83,共6页
Explosion and Shock Waves
关键词
泡沫材料
冲击波衰减
爆炸载荷
载氨酯
porous materials, cellular materials/foam, Hugoniot, shock attenuation
