基于SPH方法的聚能射流侵彻混凝土靶板数值模拟

强洪夫; 范树佳; 陈福振; 刘虎

doi:10.11883/1001-1455(2016)04-0516-09

基于SPH方法的聚能射流侵彻混凝土靶板数值模拟

doi: 10.11883/1001-1455(2016)04-0516-09

火箭军工程大学动力工程系, 陕西西安 710025

基金项目:

国家自然科学基金项目 51276192

国家重点基础研究发展计划(973计划)基金项目 61338

火箭军工程大学创新型基金项目 EPXY0806

详细信息

作者简介:
强洪夫(1963—)，男，博士，教授，博士生导师

通讯作者:
范树佳，fan_shu_jia@163.com

中图分类号: O389
计量
- 文章访问数: 6808
- HTML全文浏览量: 2528
- PDF下载量: 756
- 被引次数: 4
出版历程
- 收稿日期: 2014-12-03
- 修回日期: 2015-03-24
- 刊出日期: 2016-07-25

Numerical simulation on penetration of concrete target by shaped charge jet with SPH method

Power Engineering Department, Xi'an Hi-Tech Institute, Xi'an 710025, Shaanxi, China

摘要

摘要: 在完全变光滑长度SPH(smoothed particle hydrodynamics)方法的基础上，利用F.Ott等提出的修正SPH方法处理在求解多介质大密度问题时的数值不稳定性问题，运用Holmquist-Johnson-Cook本构模型处理混凝土在冲击载荷下的变形和损伤问题，对聚能装药射流侵彻混凝土靶板的过程进行了数值模拟，同时利用LS-DYNA非线性有限元程序进行对比，分析了2种方法得到的混凝土von Mises应力变化、射流头部特定节点处的速度变化及裂纹演变，验证了SPH方法的准确性。分析了另外2种不同尺寸的靶板在射流侵彻作用下的破坏形式，结果符合射流侵彻物理规律，表明该方法适合模拟聚爆炸与冲击等大变形破坏等问题。
- 爆炸力学 /
- 侵彻 /
- 光滑粒子动力学 /
- 混凝土 /
- 破坏
Abstract: On the basis of the smoothed particle hydrodynamics (SPH) method with fully variable smoothing lengths, the modified Ott-Schnetter SPH method was used to cope with the computational instability in the large density gradient problems. The Holmquist-Johnson-Cook constitutive model was used to cope with the deformation and damage of concrete under impact. By comparing with the corresponding ones simulated by the non-linear finite element program LS-DYNA, the changing courses of the von-Mises stress and cracks in the concrete targets, and the velocities at the some special points of the jet head were analyzed, which proved the feasibility and accuracy of the SPH method. Other two concrete plates with different sizes penetrated by shaped charge jets were also simulated. The results are in good agreement with the physical principle. So this method can be used to deal with the multi-material and large deformation problems such as detonation and impact.
- mechanics of explosion /
- penetration /
- smoothed particle hydrodynamics /
- concrete /
- damage

HTML全文

图 1 混凝土屈服强度模型曲线

Figure 1. Curves for yield strength model of concrete

下载: 全尺寸图片幻灯片

图 2 混凝土累计损伤模型曲线

Figure 2. Curve for cumulative damage model of concrete

下载: 全尺寸图片幻灯片

图 3 混凝土状态方程曲线

Figure 3. Curves for equation of state of concrete

下载: 全尺寸图片幻灯片

图 4 算例模型结构

Figure 4. Construction of the model

下载: 全尺寸图片幻灯片

图 5 聚能射流形成过程对比

Figure 5. Comparison of the formation of jet flows

下载: 全尺寸图片幻灯片

图 6 聚能射流侵彻过程中不同时刻，混凝土靶板中Von Mises应力的分布

Figure 6. Von Mises stress distribution in concrete target penetrated by shaped charge jet at different times

下载: 全尺寸图片幻灯片

图 7 聚能射流侵彻的混凝土靶

Figure 7. Concrete target penetrated by shaped charge jet

下载: 全尺寸图片幻灯片

图 8 射流头部特定点处速度-时间曲线

Figure 8. Velocity-time curves at special points of jet head

下载: 全尺寸图片幻灯片

图 9 在聚能射流的侵彻下不同时刻混凝土靶板的损伤情况

Figure 9. Damage in concrete target penetrated by shaped charge jet at different times

下载: 全尺寸图片幻灯片

图 10 不同方法模拟得到的裂纹长度及分布情况

Figure 10. Length and distribution of crack simulated by different methods

下载: 全尺寸图片幻灯片

图 11 另外2种不同尺寸的混凝土靶板在聚能射流侵彻作用下的损伤

Figure 11. Damage in other two concrete targets with different sizes penetrated by shaped charge jets

下载: 全尺寸图片幻灯片

图 12 另外2种不同尺寸的靶板聚能射流侵彻作用下特定节点的速度-时间曲线

Figure 12. Velocity-time curves at special points of other two concrete targets with different sizes penetrated by shaped charge jets

下载: 全尺寸图片幻灯片

参考文献(17)

[1]	段建, 杨黔龙, 周刚, 等.串联随进战斗部侵彻混凝土靶实验研究[J].爆炸与冲击, 2007, 27(4):364-369. doi: 10.3321/j.issn:1001-1455.2007.04.012 Duan Jian, Yang Qianlong, Zhou Gang, et al. Experimental studies of a tandem follow-through warhead penetrating concrete target[J]. Explosion and Shock Waves, 2007, 27(4):364-369. doi: 10.3321/j.issn:1001-1455.2007.04.012
[2]	Swegle J W, Attaway S W. On the feasibility of using smoothed particle hydrodynamics for underwater explosion calculations[J]. Computational Mechanics, 1995, 17(3):151-168. doi: 10.1007-BF00364078/
[3]	Libersky L D, Petscheck A G. Smoothed particle hydrodynamics with strength of materials[C]//Trease H, Fritts J, Crowley W. Proceedings of the Next Free Lagrange Conference. NY: SpringerVerlag, 1991, 395: 248-257.
[4]	Libersky L D, Petscheck A G, Carney T C, et al. High strain Lagrangian hydrodynamics: A three-dimensional SPH code for dynamic material response[J]. Journal of Computational Physics, 1993, 109(1):67-75. http://cn.bing.com/academic/profile?id=f5b87b9c4f2fcce90394ac322bb29f60&encoded=0&v=paper_preview&mkt=zh-cn
[5]	Liu M B, Liu G R, Zong Z, et al. Computer simulation of high explosive explosion using smoothed particle hydrodynamics methodology[J]. Computers & Fluids, 2003, 32(3):305-322. http://cn.bing.com/academic/profile?id=78358a2b72043bd2db9a95d83b7df716&encoded=0&v=paper_preview&mkt=zh-cn
[6]	Liu M B, Liu G R, Lam K Y, et al. Meshfree particle simulation of the detonation process for high explosives in shaped charge unlined cavity configurations[J]. Shock Waves, 2003, 12(6):509-520. doi: 10.1007/s00193-003-0185-2
[7]	Qiang Hongfu, Wang Kunpeng, Gao Weiran. Numerical simulation of shaped charge jet using multi-phase SPH method[J]. Transactions of Tianjin University, 2008, 14(1):495-499. http://cn.bing.com/academic/profile?id=2700e225ea1da83de80808d57d0ac670&encoded=0&v=paper_preview&mkt=zh-cn
[8]	Ott F, Schnetter E. A modified SPH approach for fluids with large density differences[J]. Arxiv Physics E-prints, 2003:3112. doi: 10.1002-zaac.201100286/
[9]	强洪夫, 高巍然.完全变光滑长度SPH法及其实现[J].计算物理, 2008, 25(5):569-575. doi: 10.3969/j.issn.1001-246X.2008.05.008 Qiang Hongfu, Gao Weiran. SPH method with fully variable smoothing lengths and implementation[J]. Chinese Journal of Computational Physics, 2008, 25(5):569-575. doi: 10.3969/j.issn.1001-246X.2008.05.008
[10]	强洪夫, 王坤鹏, 高巍然.基于完全变光滑长度SPH方法的HE爆轰过程的数值试验[J].含能材料, 2009, 17(1):27-31. doi: 10.3969/j.issn.1006-9941.2009.01.008 Qiang Hongfu, Wang Kunpeng, Gao Weiran. Numerical study of high explosive detonation process using SPH method with fully variable smoothing lengths[J]. Chinese Journal of Energetic Materials, 2009, 17(1):27-31. doi: 10.3969/j.issn.1006-9941.2009.01.008
[11]	Johnson G R, Cook W H. A constitutive model and data for metals subjected to large strains, high strain rates and high temperatures[C]//Proceedings of the Seventh International Symposium on Ballistics. Hague, Netherlands, 1983: 571-574.
[12]	Steinberg D J, Cochran S G, Guinan M W. A constitutive model for metals applicable at high strain rate[J]. Journal of Applied Physics, 1980, 51(3):1498-1504. doi: 10.1063/1.327799
[13]	Holmquist T J, Johnson G R, Cook W H. A computational constitutive model for concrete subjected to large strains, high strain rates, and high pressures[C]//Proceedings of the 14th International Symposium on Ballistics. Quebec, Canada, 1993: 591-600.
[14]	Monaghan J J. Smoothed particle hydrodynamics[J]. Reports on Progress in Physics, 2005, 68(8):1703-1759. doi: 10.1088/0034-4885/68/8/R01
[15]	Liu G R, Liu M B.光滑粒子流体动力学: 一种无网格粒子法[M].韩旭, 杨刚, 强洪夫, 译.长沙: 湖南大学出版社, 2005: 195-197.
[16]	Livermore Software Technology Corporation. LS-DYNA keyword user's manual[M]. Livermore: Livermore Software Technology Corporation, 2012:17-45.
[17]	Liu M B, Liu G R, Zong Z, et al. Computer simulation of high explosive explosion using smoothed particle hydrodynamics methodology[J]. Computers and Fluids, 2003, 32(3):305-322. http://cn.bing.com/academic/profile?id=78358a2b72043bd2db9a95d83b7df716&encoded=0&v=paper_preview&mkt=zh-cn

施引文献

期刊类型引用(4)

1.	范瑞军，王晓锋，王金英，周捷，王少宏，皮爱国. 活性元含量对低附带毁伤弹药近场冲击波的影响. 兵工学报. 2024(05): 1613-1624 . 百度学术
2.	李鑫，王伟力，梁争峰，畅波，苗润源. 十字形内置破片定向战斗部破片的飞散特性. 爆炸与冲击. 2023(08): 56-66 . 本站查看
3.	李兵仓. 低附带毁伤弹药概况及其对人体杀伤特点. 创伤外科杂志. 2022(07): 486-489 . 百度学术
4.	杨秉妍，范瑞军，江自生，皮爱国，王金英. 活性元对低附带毁伤弹药的近场超压增强效应. 高压物理学报. 2022(06): 164-172 . 百度学术