侵彻战斗部头部惰性体结构设计研究

为了研究侵彻战斗部头部惰性体结构设计原则,应用应力波理论,分析了侵彻战斗部撞击靶标过程中应力波从壳体到头部惰性体再到主装药的传播过程,建立了应力波传播的数学计算模型;应用大落锤试验平台,针对不同厚度、不同结构的惰性体开展了应力波传播试验研究,对比分析了试验结果和计算结果,验证了模型的合理性。依据数学计算模型,总结得出惰性体两端面的结构尺寸对应力波强度的变化影响较大,且按照e-2(D-d)/D的规律进行变化,而惰性体的厚度在10~50mm范围内变化时对应力波强度没有直接影响。

The Research on Structure Design of Inert Material in the Penetration Warhead

In order to research the principle of structure design of inert material in the penetration warhead, the propagation process of stress waves from shell to inert material and then to the charge was analyzed with stress wave theory in the penetration process of warhead, and the mathematical model was set up. The research on propagation process of stress waves was developed by big drop test equipment, when it pass through different thickness or different structure inert material, as well as the rationality of mathematical model was proved by comparing the test results with the calculation results. It is concluded that the structure size of inert material two ends surface impact on strength of stress wave much more according to the mathematical model, and accord the change rule of e-2(D-d)/D, while the thickness of inert material impact on strength of stress wave very little when it changes between 10mm and 50mm.