弹道学报2012，Vol.24Issue(3)：25-30,6.
球形破片高速侵彻明胶靶标的数值模拟
Numerical Simulation of Spherical Fragments Penetrating Into Ballistic Gelatin at High Velocity
温垚珂 1徐诚 1陈爱军 2史晓宁1
作者信息
- 1. 南京理工大学机械工程学院,南京210094
- 2. 南京理工大学理学院,南京210094
- 折叠
摘要
Abstract
To study the steel sphere penetrating into ballistic gelatin at high velocity, experiments were carried out. Based on observation and analysis of experimental phenomenon and results, some criteria were proposed to verify the rationality of numerical model, feasibility and accuracy of the numerical methods. Three different formulation approaches, i. e. Lagrange, ALE and SPH- Lagrange methods,were employed to simulate the dynamic process of sphere-gelatin interaction. The advantages and drawbacks of the three methods were discussed based on the aspects of numerical modelling, efficiency of computation, accuracy of numerical results, and reproduction of the experimental phenomenon. The result shows that Lagrange method has the highest accuracy and computation efficiency. ALE method can be used while mesh distortion often leads to the ter- mination of numerical solution. SPH method is not appropriate for the present problem.关键词
侵彻/弹道明胶/瞬时空腔/数值模拟Key words
penetration/ballistic gelatin/temporary cavity/numerical simulation分类
数理科学引用本文复制引用
温垚珂,徐诚,陈爱军,史晓宁..球形破片高速侵彻明胶靶标的数值模拟[J].弹道学报,2012,24(3):25-30,6.
