摘要
在SPH/FEM耦合算法程序中引入了陶瓷和金属材料的本构模型,对钨合金长杆弹侵彻陶瓷复合靶开展了数值模拟。给出了侵彻过程的物理图像,并分析了陶瓷靶的抗侵彻机理。对不同入射速度下的计算结果和实验结果进行了对比,计算得到的侵彻深度和实验值比较一致,验证了耦合算法的有效性。
Numerical simulations of tungsten long rod penetrating into confined ceramic target was carried out by inserting the constitutive models of ceramic and metal in the SPH/FEM coupling method.The penetration pattern was reproduced and the property of anti-penetration of ceramic targets was discussed.The computational results for different impact velocities were compared with the experiments.The penetration depths of computations are in good agreement with the experiments and so that the coupling method is validated.
出处
《高压物理学报》
EI
CAS
CSCD
北大核心
2010年第3期161-167,共7页
Chinese Journal of High Pressure Physics
基金
国家自然科学基金重点项目(10632080)
国家自然科学基金(50802092)
关键词
侵彻
耦合算法
数值模拟
陶瓷靶
有限元
SPH
penetration
coupling method
numerical simulation
ceramic target
finite element
SPH
