全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

混凝土HJC模型抗侵彻参数敏感性数值模拟研究

DOI: 10.11858/gywlxb.2012.03.011, PP. 313-318

Keywords: 混凝土,HJC模型,抗侵彻,敏感性,数值模拟

Full-Text   Cite this paper   Add to My Lib

Abstract:

混凝土是一种应用广泛的复合材料,其动态性能及抗侵彻毁伤效应的研究越来越依赖于数值模拟,其中混凝土HJC模型是应用最广泛的本构模型之一。在介绍HJC模型的基础上,应用LS-DYNA数值模拟方法进行HJC本构模型抗侵彻性能的参数敏感性研究,通过大量数值模拟得出HJC模型的抗侵彻敏感参数有:无侧限单轴抗压强度fc、压实点压力plock、特征化粘性强度A、特征化压力硬化因子B和压力硬化指数N。在混凝土的抗侵彻数值模拟过程中,重点是确定敏感参数的取值,以提高数值模拟的精度和质量,做到合理地选择试验方法和安排试验量。

References

[1]  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 [A]//14th International Symposium on Ballistics [C]. Quebec, Canada, 1993: 591-600.
[2]  Johnson G R, Cook W H. Fracture characteristics of three metals subjected to various strain, strain rates, temperatures and pressures [J]. J Eng Fract Mech, 1985, 21(1): 31-48.
[3]  Livermore Software Technology Corporation. LS-DYNA Keyword User's Manual [Z]. American: Livermore Software Technology Corporation, 2001.
[4]  Marsh S P. LASL Shock Hugoniot Data [M]. California: University of California Press, 1980.
[5]  Wang D W, Gao H Q, Du H X, et al. The analysis and simulation of penetrating movement of oblique projectile [J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2006, 26(3): 121-123. (in Chinese)
[6]  汪德武, 高洪泉, 杜海霞, 等. 斜侵彻弹体运动分析与仿真 [J]. 弹箭与制导学报, 2006, 26(3): 121-123.
[7]  Feng G Z. The numerical simulation & analysis of penetration against concrete targets using ANSYS/LS-DYNA [D]. Beijing: Institute of Engineering Mechanics, China Earthquake Administration, 2006. (in Chinese)
[8]  冯国忠. 基于ANSYS/LS-DYNA的混凝土靶板侵彻问题的数值模拟与分析 [D]. 北京: 中国地震局工程力学研究所, 2006.
[9]  Zheng Z H, Yu W L, Wang T. Numerical analysis of the EPW penetration into high strength concrete target [J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2008, 28(3): 144-147. (in Chinese)
[10]  郑振华, 余文力, 王涛. 钻地弹侵彻高强度混凝土靶的数值模拟 [J]. 弹箭与制导学报, 2008, 28(3): 144-147.
[11]  Jiang H, Wang J J. Investigation on failure index of concrete in the projectile perforation simulation [J]. Journal of Vibration and Shock, 2009, 28(8): 30-35. (in Chinese)
[12]  姜华, 王君杰. 弹体侵彻混凝土数值模拟失效指标研究 [J]. 振动与冲击, 2009, 28(8): 30-35.
[13]  Zhang F G, Li E Z. A method to determine the parameters of the model for concrete impact and damage [J]. Journal of Ballistics, 2001, 13(4): 12-17. (in Chinese)
[14]  张凤国, 李恩征. 混凝土撞击损伤模型参数的确定方法 [J]. 弹道学报, 2001, 13(4): 12-17.
[15]  Cui W F. Investigation on numerical simulation of penetration into concrete target [D]. Changsha: National University of Defense Technology, 2003. (in Chinese)
[16]  崔伟峰. 动能弹丸侵彻混凝土的数值模拟研究 [D]. 长沙: 国防科学技术大学, 2003.
[17]  Chen J L, Li X D, Liu K X. Experimental research on parameters of constitutive model for a cement mortar [J]. Acta Scientiarum Naturalium Universitatis Pekinensis, 2008, 44(5): 689-694. (in Chinese)
[18]  陈建林, 李旭东, 刘凯欣. 素混凝土本构模型参数的实验研究 [J]. 北京大学学报(自然科学版), 2008, 44(5): 689-694.
[19]  Li Y H. Sensitivity analysis of rock and soil parameter [J]. Guangzhou Architecture, 2000, 2: 34-38. (in Chinese)
[20]  李艳华. 岩土参数敏感性分析 [J]. 广州建筑, 2000, 2: 34-38.
[21]  Hanchak S J, Forrestal M J, Young E R, et al. Perforation of concrete slabs with 48 MPa (7 ksi) and 140 MPa (20 ksi) unconfined compressive strengths [J]. Int J Impact Eng, 1992, 12(1): 1-7.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133