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对混凝土直接浇筑金属三明治夹层波纹板、混凝土三棱柱插入并用树脂填充界面的金属三明治夹层波纹板的抗侵彻性能进行了研究。结果表明:随着子弹射入速度的提高,子弹射出速度和靶板单位面密度能量吸收能力升高;混凝土直接浇筑结构抗弹极限速度低于800m/s,树脂填充复合结构抗弹极限速度约为1 062m/s;同时,1 092m/s时混凝土直接浇筑结构的能量吸收能力为25.1J·m2/kg,1 204m/s时树脂填充结构能量吸收能力为41.1J·m2/kg。通过观察靶板前后面板及截面的破坏形貌,认为混凝土直接浇筑结构抗弹性能低的原因在于混凝土与金属骨架之间弱的界面约束。
The anti-penetration performance of metal sandwiched sandwich corrugated board with concrete sandwiched between metal sandwiched sandwich and corrugated concrete sandwich was studied. The results show that the projectile ejection velocity and the energy absorption capacity per unit area of the target plate increase with the increase of the projectile injection velocity. The ultimate rate of rebound resistance of the concrete direct pouring structure is less than 800m / s. The energy absorption capacity of the direct-poured concrete structure was 25.1J · m2 / kg and the energy absorption capacity of the resin-filled structure at 1 204m / s was 41.1J · m2 / kg. By observing the failure morphology of the front panel and the cross section of the target plate, it is considered that the low resistance of the direct pouring structure of concrete is due to the weak interface constraint between the concrete and the metal skeleton.