A static explosive experiment has been made on solidliquid double composite fuel-air explosive(FAE)(comprising Mg powder and isopropyl nitrate) after primary initiation.The running character of shock wave and the changing rule of overpressure space after FAE detonation have then been studied based on data analysis.Comparison on the explosion character of FAE with that of TNT

RDX

and desensitized RDX-Al enables the authors to obtain the relation between overpressure and specific impulse varying with distance.The authors have proved that the detonation reaction range FAE is greater than conventional explosives.In a certain distance from explosive center

the action time of FAE positive pressure is longer than conventional explosives and its specific impulse is greater than conventional explosives.