【摘要】 采用FEM法与SPH法相结合的一种耦合算法对气液喷发动能弹侵彻混凝土靶开展了数值模拟,阐述了计算的基本思想及计算中的一些关键问题,如喷发物的生成、单元转化、界面附近的耦合计算等。计算结果表明:喷发可以增强侵彻弹的侵彻效果;与不喷发弹相比,喷发弹的侵彻深度和对靶板的破坏程度都有明显的提高。更多还原

【Abstract】 The penetration behaviour of a new kind of projectile with gas-liquid eruption into a concrete target is studied numerically by a coupling FEM-SPH method. The basic concept of the numerical method is described and several key problems,such as ejecta generation,conversion of elements into SPH particles,and the interface between elements and particles are discussed. The results show that compared with the conventional projectiles,the penetration depth of the new projectile is increased effectively and the target is damaged much strongly.更多还原