射流侵彻陶瓷靶过程数值仿真计算(英文)  

Numerical Study of Penetration Process of CeramicTarget by Shaped Charge Jets

作　　者：张先锋[1,2] 李永池[1] 

机构地区：[1]中国科学技术大学力学与机械工程系,合肥230027 [2]南京理工大学机械工程学院,南京210094

出　　处：《系统仿真学报》2009年第9期2546-2549,2553,共5页Journal of System Simulation

基　　金：the projectile was supported by the National Natural Science Foundation (10632080); China Postdoctoral Science Foundation (20060400731); the Youth Scholarship Foundation of Nanjing University of Science & Technology

摘　　要：陶瓷靶板因其高强度、低密度特性在装甲防护中得到了广泛的应用,其抗侵彻机理得到了世界各国的广泛关注。利用有限元程序LS-DYNA对射流撞击侵彻陶瓷靶过程进行了三维数值仿真计算。获取了射流陶瓷材料的侵彻深度和速度,并与中碳钢抗侵彻过程进行对比。开展了陶瓷复合把抗射流侵彻仿真计算,并对计算结果进行了相应的对比分析。结果表明与中碳钢相比陶瓷材料对于低速段射流有较高的防护能力,对高速段射流防护能力较弱,这一结果与已有的试验结果相吻合。Ceramic material has been used in armor protection for the characteristic of high strength and hardness, and the mechanism of resistance to penetration of ceramic target has been discussed by research groups all over the world. A three-dimensional computational study of penetration process of ceramic target by shaped charge jets was performed using finite element programme of LS-DYNA. Contrasting with medium carbon steel the penetration depth and velocity were got based on numerical result. Numerical simulation of penetration process of ceramic-steel composition was carried out, and essential analysis and conclusion was drawn out. The results show that ceramic material has high protection capability to low velocity jet, and low protection capability to high velocity jet than that of medium carbon steel, which is in agreement with the experimental results.

关 键 词：爆炸力学 陶瓷靶 射流 侵彻 数值模拟 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]