聚能射流侵彻土壤／混凝土复合目标理论研究

摘要

为了研究聚能射流对土壤／混凝土复合目标的侵彻效应，分析土壤／混凝土复合目标在聚能射流侵彻下的响应特性，通过考虑聚能射流侵彻下塑性波在靶板中的传播和衰减，以及在土壤／混凝土界面的反射和透射，分析了反射波和透射波作用下射流对土壤和混凝土的侵彻过程，研究土壤／混凝土复合目标界面效应对聚能射流侵彻的影响，建立了聚能射流侵彻土壤／混凝土复合目标的理论模型。对聚能射流侵彻单一混凝土靶和土壤／混凝土复合靶进行对比试验发现，由于反射波和透射波的影响，聚能射流对土壤／混凝土复合靶的侵彻深度反而低于对单一混凝土靶的侵彻深度。在反射波和透射波的作用下射流的侵彻速度下降，导致了对土壤／混凝土复合靶侵彻深度的降低，试验结果与理论分析一致。%In order to study penetration capability of shaped charge jet penetrating into a soil/concrete target,the response characteristics of the soil/concrete target under shaped charge jet penetration were analyzed.Considering propagation and attenuation of plastic wave and its reflection and transmission on soil/concrete interface,a theoretic model of shaped charge jet penetrating into the soil/concrete target was built by analyzing influence of reflection wave and transmission wave on the jet penetrating into the soil and concrete target.The comparative tests of jet penetrating into a concrete target and a soil/concrete target,respectively were performed.It was shown that the jet penetration depth into the soil/concrete target is lower than that into the concrete target owing to influences of reflecting wave and transmission one;the action of reflection wave and transmission wave,the penetration velocity decreases to cause the reduction of the jet penetration depth into the soil/concrete target;the test results agree well with those of theoretical analysis.