铝纤维炸药土中扩腔现场实验与数值模拟

万晓智; 马宏昊; 沈兆武; 陈伟

doi:10.11883/1001-1455(2016)02-0236-06

铝纤维炸药土中扩腔现场实验与数值模拟

doi: 10.11883/1001-1455(2016)02-0236-06

中国科学技术大学近代力学系, 安徽合肥 230027

基金项目:

国家自然科学基金项目 51134012

国家自然科学基金项目 51174183

详细信息

作者简介:
万晓智(1986—)，男，硕士研究生

通讯作者:
马宏昊，hhma@ustc.edu.cn

中图分类号: O383.1
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- 文章访问数: 4527
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- 被引次数: 0
出版历程
- 收稿日期: 2014-09-02
- 修回日期: 2015-03-03
- 刊出日期: 2016-03-25

Experiment and numerical simulation of explosion cavity in soil by aluminum fiber explosive

Department of Modern Mechanics, University of Science and Technology of China, Hefei 230027, Anhui, China

摘要

摘要: 为检验铝纤维炸药的做功能力，对铝纤维炸药土中爆炸扩腔现象进行实验，并采用ANSYS/LS-DYNA软件进行数值模拟，得出铝纤维炸药爆腔半径随药量变化的关系。结果表明，现场实验与数值模拟均能较好地表征铝纤维炸药土中爆炸扩腔的规律，铝纤维炸药相对于工业乳化炸药做功能力强，且由于其成型效果好等特点，应用于一些复杂的环境能够取得理想效果，可为类似工程提供参考。
- 爆炸力学 /
- 爆炸扩腔 /
- ANSYS/LS-DYNA软件 /
- 铝纤维炸药
Abstract: To evaluate the work capability of the aluminum fiber explosive, the field test of explosion cavity expansion in soil by aluminum fiber explosive was performed, and the numerical simulation analysis using the software of ANSYS/LS-DYNA was carried out for further investigation. The relationship between the radius of the explosion cavity and the explosive charge was obtained. Our results reveal that both of the two methods provide a fairly good characterization of the law of expansion during the explosion cavity process in soil of aluminum fiber explosive, and the characteristics the aluminum fiber explosive exhibit are better than those of the emulsion explosive in modelling and work ability, which offers a promising application when used in complicated environments and provides a reference for similar engineering projects.
- mechanics of explosion /
- explosion cavity /
- ANSYS/LS-DYNA /
- aluminum fiber explosive

HTML全文

图 1 现场实验爆腔效果图

Figure 1. Explosion cavities in experiment

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图 2 计算模型

Figure 2. Calculation model

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图 3 计算得到的爆腔效果图

Figure 3. Explosion cavities by calculation

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图 4 铝纤维炸药爆腔半径与药量关系

Figure 4. Relation between the radius of explosion cavity and the weight of aluminum fiber explosive

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图 5 爆炸塔纠偏实验

Figure 5. Rectification of explosion tower

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表 1 实验中爆腔特征参数

Table 1. Characteristic parameters of explosion cavities in experiment

药柱	炸药类型	m/g	ρ/(g·cm^-3)	药柱尺寸		H/cm	腔体尺寸		V/L
药柱	炸药类型	m/g	ρ/(g·cm^-3)	r/cm	h/cm	H/cm	a/cm	b/cm	V/L
1	铝纤维炸药	9.974	1.65	1.010	1.884	40	11.00	13.00	6.500
2	铝纤维炸药	20.162	1.65	1.010	3.808	50	18.25	17.25	24.567
3	铝纤维炸药	30.001	1.66	1.010	5.630	60	19.50	20.25	31.900
4	乳化炸药	30.125	1.19	1.200	5.600	60	16.88	16.65	21.193

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表 2 计算得到的爆腔特征参数

Table 2. Characteristic parameters of explosion cavities by calculation

药柱	炸药类型	m/g	ρ/(g·cm^-3)	H/cm	腔体尺寸		V/L	V/V₀	Q/Q₀
药柱	炸药类型	m/g	ρ/(g·cm^-3)	H/cm	a/cm	b/cm	V/L	V/V₀	Q/Q₀
1	铝纤维炸药	9.9	1.65	40	12.5	13.5	8.836	2.24	2.15
2	铝纤维炸药	19.8	1.65	50	16.0	17.0	18.230	2.31	2.15
3	铝纤维炸药	29.7	1.65	60	18.50	19.0	27.239	2.30	2.15
4	乳化炸药	28.8	1.19	60	13.8	14.4	11.487	1.00	1.00

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表 3 不同炸药爆腔半径公式经验系数

Table 3. Empirical coefficients of the explosion cavity radius formulas for different explosives

k′/(m·kg^-1/3)	铝纤维炸药		乳化炸药
k′/(m·kg^-1/3)	数值模拟	实验	数值模拟	实验
横向	0.592	0.617	0.450	0.535
纵向	0.622	0.635	0.470	0.542

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参考文献(15)

[1]	廖学燕.铝纤维复合炸药研究[D].合肥: 中国科学技术大学, 2010. http://cdmd.cnki.com.cn/Article/CDMD-10358-2010133231.htm
[2]	亨利奇J.爆炸动力学及其应用[M].熊建国, 译.北京: 科学出版社, 1987: 161-324.
[3]	许连坡, 金辉, 章培德.土中爆炸空腔的发展过程[J].力学学报, 1982, 14(5):500-504. http://www.cnki.com.cn/Article/CJFDTOTAL-LXXB198205010.htm Xu Lianpo, Jin Hui, Zhang Peide. Development of explosion cavity in soil[J]. Chinese Journal of Theoretical and Applied Mechanics, 1982, 14(5):500-504. http://www.cnki.com.cn/Article/CJFDTOTAL-LXXB198205010.htm
[4]	沈兆武, 皮爱如, 周听清, 等.地下水库爆炸成形的实验研究[J].力学与实践, 2002, 24(增刊):119-122. http://d.old.wanfangdata.com.cn/Conference/3406819 Shen Zhaowu, Pi Airu, Zhou Tingqing, et al. Experimental study on underground reservoir formation by explosion[J]. Mechanics in Engineering, 2002, 24(Suppl):119-122. http://d.old.wanfangdata.com.cn/Conference/3406819
[5]	李毅, 郭学彬, 蒲传金.土中球状药包爆腔半径预测及验证[J].煤矿爆破, 2009(2):1-5. http://d.old.wanfangdata.com.cn/Periodical/mkbp200902001 Li Yi, Guo Xuebin, Pu Chuanjin. The prediction and verification of spherical charge on blasting cavity radius in soil[J]. Coal Mine Blasting, 2009(2):1-5. http://d.old.wanfangdata.com.cn/Periodical/mkbp200902001
[6]	任晓亮, 杜志明, 丛晓民.大半径装药土中爆炸的数值模拟[J].矿业研究与开发, 2010, 30(1):100-103. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=kyyjykf201001031 Ren Xiaoliang, Du Zhiming, Cong Xiaomin. Numerical simulation of explosion with large radius charge in soil[J]. Mining Research and Development, 2010, 30(1):100-103. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=kyyjykf201001031
[7]	赵均海, 冯红波, 田宏伟, 等.土中爆炸作用的数值分析[J].建筑科学与工程学报, 2011, 28(1):96-99. http://d.old.wanfangdata.com.cn/Periodical/xbjzgcxyxb201101017 Zhao Junhai, Feng Hongbo, Tian Hongwei, et al. Numerical analysis of explosion process in soil[J]. Journal of Architecture and Civil Engineering, 2011, 28(1):96-99. http://d.old.wanfangdata.com.cn/Periodical/xbjzgcxyxb201101017
[8]	王海亮, 冯长根, 王丽琼.土中爆炸成腔的现场实验研究[J].火炸药学报, 2001, 24(2):12-15. doi: 10.3969/j.issn.1007-7812.2001.02.004 Wang Hailiang, Feng Changgen, Wang Liqiong. Study on on-site experiment of explosion cavity in soil[J]. Chinese Journal of Explosives & Propellants, 2001, 24(2):12-15. doi: 10.3969/j.issn.1007-7812.2001.02.004
[9]	王海亮, 冯长根, 侯兆霞, 等.土中爆炸成腔半径的计算[J].爆破器材, 2001, 30(3):19-22. doi: 10.3969/j.issn.1001-8352.2001.03.005 Wang Hailiang, Feng Changgen, Hou Zhaoxia, et al. The calculation on radius of explosion cavity in soil[J]. Explosion Materials, 2001, 30(3):19-22. doi: 10.3969/j.issn.1001-8352.2001.03.005
[10]	李小雷, 聂建新, 覃剑锋, 等.含铝炸药在混凝土中爆炸效应的数值模拟研究[J].爆破, 2012, 29(3):109-113. doi: 10.3963/j.issn.1001-487X.2012.03.027 Li Xiaolei, Nie Jianxin, Qin Jianfeng, et al. Numerical simulation of explosion effects in concrete by aluminized explosives[J]. Blasting, 2012, 29(3):109-113. doi: 10.3963/j.issn.1001-487X.2012.03.027
[11]	陈朗, 龙新平, 冯长根, 等.含铝炸药爆轰[M].北京:国防工业出版社, 2004:126-130.
[12]	万晓智, 马宏昊, 沈兆武, 等.RDX基铝纤维炸药与铝粉炸药水下爆炸性能比较[J].振动与冲击, 2014, 33(24):129-132. http://www.cnki.com.cn/Article/CJFDTOTAL-ZDCJ201424021.htm Wan Xiaozhi, Ma Honghao, Shen Zhaowu, et al. Comparison of underwater detonation performance of RDX-based aluminum fiber explosive and that of aluminum particle explosive[J]. Journal of Vibration and Shock, 2014, 33(24):129-132. http://www.cnki.com.cn/Article/CJFDTOTAL-ZDCJ201424021.htm
[13]	段云, 熊代余, 李国仲, 等.典型工业炸药爆炸灾害效应的数值模拟[J].河南理工大学学报:自然科学版, 2011, 30(4):381-385. doi: 10.3969/j.issn.1673-9787.2011.04.001 Duan Yun, Xiong Daiyu, Li Guozhong, et al. Numerical simulation of disaster effects induced by typical industrial explosive explosion[J]. Journal of Henan Polytechnic University: Natural Science, 2011, 30(4):381-385. doi: 10.3969/j.issn.1673-9787.2011.04.001
[14]	刘蓉, 程扬帆, 周宗富, 等.玻璃微球敏化的乳化炸药数学模型[J].中国科学技术大学学报, 2012, 42(12):990-994. doi: 10.3969/j.issn.0253-2778.2012.12.007 Liu Rong, Cheng Yangfan, Zhou Zongfu, et al. A mathematical model for the detonation reaction of emulsion explosives with micro balloons[J]. Journal of University of Science and Technology of China, 2012, 42(12):990-994. doi: 10.3969/j.issn.0253-2778.2012.12.007
[15]	孙业斌, 惠君明, 曹欣茂.军用混合炸药[M].北京:兵器工业出版社, 1995:338-339.