【摘要】 在球形空腔膨胀模型的基础上,将钢筋混凝土中的钢筋网结构所在混凝土等效为高强混凝土层,其余部分按素混凝土层处理,得到了计算卵形头部弹丸侵彻钢筋混凝土的分层工程分析模型。用分层分析模型计算了最终侵彻深度,侵彻过程中弹丸的位移时程曲线,速度时程曲线和加速度时程曲线。将计算结果与实验数据和按球形空腔膨胀模型计算结果对比分析,结果表明分层分析模型能够较真实的反映弹丸侵彻钢筋混凝土过程中的运动状态。更多还原

【Abstract】 Based on the spherical cavity expansion model,taking a concrete layer where steel bar in it as high strength concrete one,a reinforced concrete is divided into a plain concrete layer and a high strength concrete layer.An engineering analytical model for ogival-nose projectiles to penetrate into layered concrete targets is developed.The model predicts that their depth of penetration,acceleration time history,velocity time history and displacement time history are in reasonable agreement with the corresponding test data.更多还原