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...

某含铝PBX压缩性能的应变率与温度效应

DOI: 10.11858/gywlxb.2013.03.007, PP. 361-366

Keywords: 高聚物粘结炸药,温度,应变率,压缩,分离式霍普金森压杆

Full-Text   Cite this paper   Add to My Lib

Abstract:

武器弹药在生产、存储、使用等过程中难免需要经受高温、高压、冲击等恶劣环境的考验。在这些极端环境下,作为装填物的高能炸药的力学性能在很大程度上会影响弹药的安全性,因此有必要对其力学性能展开深入的研究。在分离式霍普金森压杆实验平台上,采用单独加热试样快速装配的方法,对某含铝高聚物粘结炸药(PBX)在不同温度、不同应变率下的压缩性能进行了实验研究。在4种温度(12、29、45和62℃)下分别得到了不同应变率(250~1200s-1)加载下的压缩力学性能。实验结果表明,该PBX的压缩强度具有明显的应变率强化效应和温度软化效应,并且具有较好的线性关系,但破坏应变没有明显的变化。根据所得实验结果,利用双线性函数对压缩强度与温度和应变率之间的关系进行了拟合,认为此关系式仅适用于温度高于粘结剂玻璃转化温度情况下的动态压缩性能。

References

[1]  Chen R, Lu F Y, Lin Y L, et al. Mechanical behavior and constitutive model of pressed aluminized explosive [J]. Chinese Journal of Energetic Materials, 2007, 15(5): 460-463. (in Chinese)
[2]  陈荣, 卢芳云, 林玉亮, 等. 一种含铝炸药压缩力学性能和本构关系研究 [J]. 含能材料, 2007, 15(5): 460-463.
[3]  Zhou D, Huang F L, Yao H S. Study on the visco-elastic constitutive model of PBX [J]. Transactions of Beijing Institute of Technology, 2007, 27(11): 945-948. (in Chinese)
[4]  周栋, 黄风雷, 姚惠生. PBX炸药粘弹性损伤本构关系研究 [J]. 北京理工大学学报, 2007, 27(11): 945-948.
[5]  Wu H M, Lu F Y. Research on constitutive relation of a polymer bonded explosive and pressed Comp. B [J]. Chinese Journal of High Pressure Physics, 2005, 19(2): 139-144. (in Chinese)
[6]  吴会民, 卢芳云. 一种高聚物粘结炸药和B炸药的本构关系研究 [J]. 高压物理学报, 2005, 19(2): 139-144.
[7]  Li M, Zhang J, Li J M, et al. Experimental investigation to the damage location of PBX mechanical failure at mesocale [J]. Chinese Journal of Energetic Materials, 2005, 13(2): 79-83. (in Chinese)
[8]  李明, 张珏, 李敬明, 等. 高聚物粘结炸药压缩破坏的细观力学实验研究 [J]. 含能材料, 2005, 13(2): 79-83.
[9]  Wu H M, Lu F Y, Lu L, et al. Microstructure fractural characteristics of energetic materials under compressive loading [J]. Chinese Journal of High Pressure Physics, 2005, 19(3): 213-218. (in Chinese)
[10]  吴会民, 卢芳云, 卢力, 等. 压缩加载下三种含能材料细观破坏特征观察 [J]. 高压物理学报, 2005, 19(3): 213-218.
[11]  Chen R. Experimental studies on mechanical properties of a PBX under various dynamic loading conditions [D]. Changsha: National University of Defense Technology, 2010. (in Chinese)
[12]  陈荣. 一种PBX炸药试样在复杂应力动态加载下的力学性能实验研究 [D]. 长沙: 国防科学技术大学, 2010.
[13]  Balzer J E, Siviour C R, Walley S M, et al. Behaviour of ammonium perchlorate-based propellants and a polymer-bonded explosive under impact loading [J]. Proceedings of the Royal Society of London Series a-Mathematical Physical and Engineering Sciences, 2004, 460(2043): 781-806.
[14]  Williamson D M, Siviour C R, Proud W G, et al. Temperature-time response of a polymer bonded explosive in compression (EDC37) [J]. J Phys D: Appl Phys, 2008, 41(8): 1-11.
[15]  Govier R K, Gray G T, Blumenthal W R. Comparison of the influence of temperature on the high-strain-rate mechanical responses of PBX 9501 and EDC37 [J]. Metall Mater Trans A, 2008, 39(3): 535-538.
[16]  Cady C M, Blumenthal W R, Gray G T, et al. Mechanical properties of plastic-bonded explosive binder materials as a function of strain-rate and temperature [J]. Polymer Engineering and Science, 2006, 46(6): 812-819.
[17]  Blumenthal W R, Gray G T, Idar D J, et al. Influence of temperature and strain rate on the mechanical behavior of PBX 9502 and Kel-F 800 (TM) [C]//Furnish M D, Chhabildas L C, Hixson R S. Shock Compression of Condensed Matter-1999. Snowbird, Utah: AIP, 2000: 671-674.
[18]  Blumenthal W R, Thompson D G, Cady C D, et al. Compressive properties of PBXN-110 and its HTPB-based binder as a function of temperature and strain rate [C]//Proceedings of 12th International Symposium on Detonation. San Diego, CA: NSWC, 2002.
[19]  Wen M P, Pang H Y, Tian Y, et al. Regulations of plane strain fracture toughness of PBX changed with temperatures [J]. Chinese Journal of Explosives & Propellants, 2005, 28(3): 63-65. (in Chinese)
[20]  温茂萍, 庞海燕, 田勇, 等. PBX平面应变断裂韧度随温度的变化规律 [J]. 火炸药学报, 2005, 28(3): 63-65.
[21]  Qin J, Lin Y L, Lu F Y, et al. Dynamic compressive properties of a PBX analog as a function of temperature and strain rate [C]//Proulx T. Conference Proceedings of the Society for Experimental Mechanics Series. New York: Springer, 2011: 141-146.
[22]  He P S. Structure and Properties of Polymers [M]. Beijing: Scientifical and Technical Publisher, 2008. (in Chinese)
[23]  何平笙. 新编高聚物的力学性能 [M]. 北京: 科学技术出版社, 2008.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133