摘要
描述了弹丸高速碰撞靶体过程中的各种破坏效应,包括成坑、冲塞、层裂、碎片云等。详细介绍和分析了基于AUTODYN程序数值模拟弹丸高速碰撞靶体问题的关键技术,包括基本算法、材料强度模型和失效模型、材料状态方程、人工粘性、沙漏控制、单元侵蚀等。在此基础上,通过典型算例验证了基于AUTODYN程序模拟弹丸高速碰撞靶体过程中各种破坏效应的可行性、有效性和可靠性。
Various damage effects during projectile high-velocity impacting to target were described, such as cratering, extrusion, spalling, debris cloud, etc. The key techniques to numerically simulate theproblem of projectile high-velocity impacting to target with AUTODYN code were proposed and analyzed, including basic algorithm, material strength model and failure model, material equation of state, artificial viscosity, hourglass control, element erosion, etc. Finally, the feasibility, validity and reliability of simulating damage effects during projectile high-velocity impacting to target with A UTOD YN code were verified with different calculation examples.
出处
《系统仿真学报》
CAS
CSCD
北大核心
2013年第4期621-625,共5页
Journal of System Simulation
