MCA法模拟研究骨料对混凝土靶抗弹性能的影响

采用自行研制的移动元胞自动机法数值软件,对弹以700 m／s的速度垂直侵彻骨料含量(质量分数)为20％,40％,60％三种配比混凝土靶的过程进行二维数值模拟计算。数值模拟结果表明,侵彻过程是一个局部破坏过程,侵彻点附近骨料的含量及分布对混凝土靶抗弹性能影响较大,并得到了侵彻深度与冲击速度的关系曲线,从而说明了本计算方法是计算和模拟高速侵彻问题的有效工具。

Research of the effect of aggregations on the anti- penetration properties of concrete targets by MCA

The relative theory and mathematical model of Movable Cellular Automata (MCA) method were described for simulating the high - rate penetration in this paper. The 2 - D numerical simulations on the penetrations of projectile into concrete targets with different content of aggregates were completed at impact velocity, 700 m/s. The calculation result showed the penetration processes is the local deformation processes. The content and distribution of aggregations near the penetration point have an effect on the an-ti - penetration properties of the concrete targets. In addition, the penetration depth vs impact velocity is given. The numerical example above proves that this algorithm is powerful and efficient for simulating the high - rate penetration.