强冲击载荷下氧化铝陶瓷靶破坏过程的SPH数值模拟  

Numerical Simulation of the Destructive Process of Shock-Loaded Alumina Ceramics Using Smoothed Particle Hydrodynamics

作　　者：王凤英 刘迎彬[1,2] 刘天生[1] 胡晓艳[2] 

机构地区：[1]中北大学化工与环境学院,山西太原030051 [2]中国科学技术大学近代力学系,安徽合肥230027

出　　处：《高压物理学报》2012年第4期415-420,共6页Chinese Journal of High Pressure Physics

摘　　要：陶瓷材料因具有低密度、高强度和高声速等良好的力学特性,被广泛应用到军事、航空航天和舰船防护等领域。为了研究氧化铝陶瓷靶板在强冲击载荷下的破坏性能,利用AUTODYN软件,采用光滑粒子流体动力学求解器对钨合金弹丸撞击氧化铝陶瓷靶过程进行模拟计算。将模拟结果与实验结果进行对比可知,模拟结果与实验结果非常吻合,说明所采用的计算方法正确。该研究方法为分析氧化铝陶瓷在强冲击载荷下的破坏特性提供了一种方便的途径,节省了研究时间和研究成本,提高了研究效率。Ceramics materials have been widely used in military projects,aerospace,aviation and ship structure protection,due to their good mechanical properties such as low density,high strength and high sound velocity.The destructive process of alumina ceramic impacted by a tungsten alloy projectile is simulated using smoothed particle hydrodynamics（SPH） techniques of AUTODYN.The simulation results are consistent with the experimental results,which indicate that the method is feasible and effective.The method proposed provides a convenient and economical way to study the failure behavior of alumina ceramic under strong impact loading.

关 键 词：冲击 氧化铝陶瓷 侵彻 光滑粒子流体动力学 

分 类 号：O385[理学—流体力学]