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针对航天器铝合金面板超高速撞击实验,运用SPH算法进行了三维数值模拟分析。计算模拟了一种实验状态下弹丸穿透铝合金面板的动态过程,获得了碎片云的形成、发展过程,并对比了不同实验状态下的弹孔尺寸等参数。数值模拟表明,选用适当的材料模型和状态方程参数,计算结果与实验基本接近,验证了SPH算法在航天器防护设计领域的有效性。
Aiming at the hyperspeed impact experiments of the spacecraft aluminum alloy panels, a three-dimensional numerical simulation of SPH algorithm was carried out. The dynamic process of projectile penetrating aluminum alloy panel under simulated experimental conditions was simulated and the formation and development of debris clouds were obtained. The parameters of bullet hole size under different experimental conditions were compared. Numerical simulation shows that the selection of the appropriate material model and equation of state parameters, the calculated results and the basic experimental close to verify the SPH algorithm in the field of spacecraft protection design effectiveness.