聚醚醚酮壳体战斗部爆破威力试验

In order to lower the collateral damage of warhead in urban warfare, the new material, polyether ether ketone (PEEK) was used as the warhead shell in this work, by which the fragments could be eliminated while the killing range of shock waves was maintained. The comparison between the warhead using PEEK shell and the one with 2A12 shell and identical shell thickness was conducted, in which the overpressure, specific impulse and fragment velocity were analyzed, the acceleration of fragment was recorded by high-speed camera and the fragments were recovered for further investigation. The results show that the warhead using PEEK shell possessed a 54% lower weight than the one using 2A12 shell and an identical overpressure damage radius. By using PEEK shell, the energy converted into shock wave is more than the case using 2A12 shell, thus the specific impulse is also higher as the proportional distance increasing. Few PEEK fragments were recovered since the tiny PEEK fragments formed under the blast loads were completely burned during the acceleration driven by high temperature detonation products. Therefore, the lethality of warhead using PEEK shell was limited to shock wave and was easily controlled to meet the requirement of low collateral damage in urban warfare.