传爆药静态压缩力学性能及损伤特性研究

肖向东; 肖有才; 洪志雄; 熊言义; 赵慧平; 王泽宇; 王志军

doi:10.11883/bzycj-2021-0257

传爆药静态压缩力学性能及损伤特性研究

doi: 10.11883/bzycj-2021-0257

1.
中北大学机电工程学院，山西太原 030051
2.
中国船舶重工集团公司第七一三研究所，河南郑州 450015

基金项目: 国家自然科学基金（11802273）；山西省青年科学基金（201901D211279）

详细信息

作者简介:
肖向东（1994－　），男，硕士，xxiangdong0@163.com

通讯作者:
肖有才（1988－　），男，博士，副教授，xiaoyoucai@nuc.edu.cn

中图分类号: O347.3
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- 文章访问数: 396
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- 被引次数: 0
出版历程
- 收稿日期: 2021-06-30
- 修回日期: 2021-09-16
- 网络出版日期: 2022-03-31
- 刊出日期: 2022-05-09

Study on mechanical properties and damage characteristics of booster explosives under static compression

1.
College of Mechatronic Engineering, North University of China, Taiyuan 030051, Shanxi, China
2.
713th Research Institute of China State Shipbuilding Corporation, Zhengzhou 450015, Henan, China

摘要

摘要: 为研究聚黑-14C（JH-14C）传爆药静态压缩力学性能及损伤特性，开展准静态压缩实验，获得了不同应变率下的应力-应变曲线，建立了描述不同应变率下JH-14C力学行为的非线性本构模型；利用扫描电镜（SEM）对回收试样进行细微形貌观测，获得了准静态压缩JH-14C损伤特性的表征。结果表明：JH-14C压缩强度随应变率的升高而提高；实验与计算结果对照验证了本构模型的有效性；准静态压缩实验中，JH-14C主要损伤模式为脱湿和穿晶断裂。
- JH-14C /
- 传爆药 /
- 准静态 /
- 应变率 /
- 本构模型 /
- 损伤模式
Abstract: In order to study the static compression mechanical properties and damage characteristics of the JH-14C booster explosive, quasi-static compressive experiments were performed on a testing machine equipped with an environmental chamber (INSTRON). According to the GJB 770B–2005 powder test method, dimensions of the cylindrical specimen were set as $\varnothing $12.5 mm×12.5 mm in the static compressive experiments. During compression, only one extensometer was used. All experiments were performed at a crosshead speed of 0.012 5, 0.062 5, 0.125, 0.625 and 1.25 mm/s at room temperature (25 °C), which led to a nominal strain rate of 0.001, 0.005, 0.01, 0.05 and 0.1 s⁻¹, respectively. The average stress-strain values and standard deviations were calculated using five replicable experiments for each condition. The experimental results were compared with X0242 and PBX-9501, and the mechanical properties of JH-14C were analyzed. According to the mechanical properties of JH-14C at low strain rates, the original Ramberg-Osgood constitutive relationship was modified, and a nonlinear constitutive model including the strain rate term was established to describe the mechanical behavior of JH-14C at low strain rates. The micro morphologies of the recovered samples was observed by a scanning electron microscope (SEM) and compared with that of PBX-9501. The damage mode was analyzed to characterize the damage characteristics of JH-14C under quasi-static compression. The results show that the compressive strength of JH-14C increases with the increase of strain rate. The validity of the constitutive model was verified by comparing the experimental and calculated results. In the quasi-static compression experiments, the energetic particles and the binder were debonded. With the increase of the pressure, the original crack and the micro-crack formed by debonding on the energetic particles were converged and coalesced to form a macro crack, which led to the rupture and failure of the explosive.
- JH-14C /
- booster explosive /
- quasi-static /
- strain rate /
- constitutive model /
- damage mode

HTML全文

图 1 JH-14C的细观形貌

Figure 1. Micrographs of JH-14C

下载: 全尺寸图片幻灯片

图 2 应力-应变关系和试件变形过程

Figure 2. Stress-strain relationship and the corresponding specimen deformation process

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图 3 不同应变率下JH-14C、PBX9501^[14]、X0242^[13]的准静态应力-应变曲线

Figure 3. Quasi-static stress-strain curves of JH-14C, PBX9501^[14], X0242^[13] at different strain rates

下载: 全尺寸图片幻灯片

图 4 理论与实验的准静态压缩应力-应变曲线比较

Figure 4. Comparisons between theory and experiment quasi-static stress-strain curves

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图 5 试样加载前细观形貌

Figure 5. Micrographs of the specimens before loading

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图 6 PBX9501的细观形貌^[4]

Figure 6. Micrographs of PBX9501^[4]

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图 7 JH-14C试样加载时的细观形貌

Figure 7. Micrographs of the JH-14C specimen at loading moments

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图 8 JH-14C试样的径向截面细观形貌

Figure 8. Micrographs of the radial cross-section of the JH-14C specimen

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图 9 JH-14C宏观断裂形貌

Figure 9. Macroscopic longitudinal fracture surface of JH-14C

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表 1 模型拟合结果的相关系数

Table 1. Correlation coefficients of the model fitting results

$ \dot \varepsilon$/s⁻¹ R²

0.1 0.990 5
0.05 0.997 5
0.01 0.998 7
0.005 0.992 5
0.001 0.984 2

下载: 导出CSV

参考文献(16)

[1]	邓琼, 叶婷, 苗应刚. 基于Hopkinson压杆实验技术研究火工品及含能材料的抗高过载能力 [J]. 火炸药学报, 2009, 32(6): 66–70. DOI: 10.14077/j.issn.1007-7812.2009.06.019. DENG Q, YE T, MIAO Y G. Study on overloading-resistibility of initiator and energetic materials based on the technique of Hopkinson pressure bar [J]. Chinese Journal of Explosive & Propellants, 2009, 32(6): 66–70. DOI: 10.14077/j.issn.1007-7812.2009.06.019.
[2]	RAE P J, PALMER S J P, GOLDREIN H T, et al. Quasi-static studies of the deformation and failure of PBX 9501 [J]. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2002, 458(2025): 2227–2242. DOI: 10.1098/rspa.2002.0967.
[3]	RAE P J. Quasi-static studies of the deformation, strength and failure of polymer bonded explosives [D]. Cambridge, UK: University of Cambridge, 2000.
[4]	RAE P J, GOLDREIN H T, PALMER S J P, et al. Quasi-static studies of the deformation and failure of β-HMX based polymer bonded explosives [J]. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2002, 458: 743–762. DOI: 10.1098/rspa.2001.0894.
[5]	HEIDER N, STEINBRENNER A, AURICH H, et al. A method for the determination of the viscoelastic relaxation function of reactive materials [J]. The European Physical Journal Special Topics, 2016, 225(2): 397–407. DOI: 10.1140/epjst/e2015-66666-x.
[6]	HEIDER N, STEINBRENNER A, WEIDEMAIER P, et al. Modelling the mechanical behaviour of PBX KS32 [C] // 44th Annual Conference ICT. Karlsruhe, Germany: Fraunhofer Institute for Chemical Technology, 2013.
[7]	DIENES J K, ZUO Q H, KERSHNER J D. Impact initiation of explosives and propellants via statistical crack mechanics [J]. Journal of the Mechanics and Physics of Solids, 2006, 54(6): 1237–1275. DOI: 10.1016/j.jmps.2005.12.001.
[8]	BENNETT J G, HABERMAN K S, JOHNSON J N, et al. A constitutive model for the non-shock ignition and mechanical response of high explosives [J]. Journal of the Mechanics and Physics of Solids, 1998, 46(12): 2303–2322. DOI: 10.1016/S0022-5096(98)00011-8.
[9]	李硕, 袁俊明, 刘玉存, 等. 聚黑-14C的传爆装置冲击起爆实验及数值模拟 [J]. 火炸药学报, 2016, 39(6): 63–68,79. DOI: 10.14077/j.issn.1007-7812.2016.06.011. LI S, YUAN J M, LIU Y C, et al. Experiment and numerical simulation of shock initiation of JH-14C detonation device [J]. Chinese Journal of Explosives & Propellants, 2016, 39(6): 63–68,79. DOI: 10.14077/j.issn.1007-7812.2016.06.011.
[10]	董理赢. 引信传爆序列殉爆反应特性研究 [D]. 太原: 中北大学, 2020. DOI: 10.27470/d.cnki.ghbgc.2020.000896. DONG L Y. Study on the characteristics of the sympathetic detonation reaction in fuze explosive trains [D]. Taiyuan, China: North University of China, 2020. DOI: 10.27470/d.cnki.ghbgc.2020.000896.
[11]	张子敏, 许碧英, 仲凯, 等. 冲击载荷下JH-14C传爆药的动态响应实验研究 [J]. 火炸药学报, 2010, 33(1): 57–59,63. DOI: 10.14077/j.issn.1007-7812.2010.01.018. ZHANG Z M, XU B Y, ZHONG K, et al. Experimental study on the dynamic response of booster explosive JH-14C under impact load [J]. Chinese Journal of Explosives & Propellants, 2010, 33(1): 57–59,63. DOI: 10.14077/j.issn.1007-7812.2010.01.018.
[12]	张子敏, 许碧英, 贾建新, 等. 基于Hopkinson杆技术分析典型传爆药的动态力学性能 [J]. 含能材料, 2012, 20(1): 62–66. DOI: 10.3969/j.issn.1006-9941.2012.01.015. ZHANG Z M, XU B Y, JIA J X, et al. Analysis on dynamic properties of typical boosters based on Hopkinson bars [J]. Chinese Journal of Energetic Materials, 2012, 20(1): 62–66. DOI: 10.3969/j.issn.1006-9941.2012.01.015.
[13]	GRAY Ⅲ G T, IDAR D J, BLUMENTHAL W R, et al. High- and low-strain rate compression properties of several energetic material composites as a function of strain rate and temperature [R]. Washington, DC, USA: Office of Scientific & Technical Information Technical Reports, 1998.
[14]	IDAR D J, THOMPSON D G, GRAY Ⅲ G T, et al. Influence of polymer molecular weight, temperature, and strain rate on the mechanical properties of PBX 9501 [J]. AIP Conference Proceedings, 2002, 620(1): 821–824. DOI: 10.1063/1.1483663.
[15]	RENGANATHAN K, RAO B N, JANA M K. Failure assessment on a strip biaxial tension specimen for a HTPB-based propellant material [J]. Propellants, Explosives, Pyrotechnics, 2015, 24(6): 349–352. DOI: 10.1002/(SICI)1521-4087(199912)24:6<349::AID-PREP349>3.0.CO;2-1.
[16]	OTTOSEN N S, RISTINMAA M. The mechanics of constitutive modeling [M]. Oxford UK: Elsevier Limited, 2005: 165-174.