An investigating on explosive expanding fracture of 45 steel cylinders by SPH method

WU Sisi; DONG Xinlong; YU Xinlu

doi:10.11883/bzycj-2021-0172

Volume 41 Issue 10

Oct. 2021

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WU Sisi, DONG Xinlong, YU Xinlu. An investigating on explosive expanding fracture of 45 steel cylinders by SPH method[J]. Explosion And Shock Waves, 2021, 41(10): 103101. doi: 10.11883/bzycj-2021-0172

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WU Sisi, DONG Xinlong, YU Xinlu. An investigating on explosive expanding fracture of 45 steel cylinders by SPH method[J]. Explosion And Shock Waves, 2021, 41(10): 103101. doi: 10.11883/bzycj-2021-0172

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An investigating on explosive expanding fracture of 45 steel cylinders by SPH method

doi: 10.11883/bzycj-2021-0172

WU Sisi^{1, 2
,},
DONG Xinlong^{1, 2
,
,},
YU Xinlu^{1, 2}

1.
Faculty of Mechanical Engineering and Mechanics，Ningbo University，Ningbo 315211，Zhejiang，China
2.
Key Laboratory of Impact and Safety Engineering, Ministry of Education, Ningbo University, Ningbo 315211, Zhejiang, China

Received Date: 2021-05-06
Rev Recd Date: 2021-06-03

Available Online: 2021-09-24

Publish Date: 2021-10-13

Abstract

Abstract

The expanding fracture of ductile alloy cylinder subject to the explosion includes multiple fracture modes, such as tensile, shear, and mixed tensile-shear fracture. The mechanism and the factors influencing the fracture processes are still enigmatic and far from understood. In this paper, the smoothed particle hydrodynamics (SPH) method is used to simulate the explosion experiment of 45 steel cylinders shell with different charges of JOB-9003 and RHT-901. The shear fracture, tension-shear mixed fracture modes and the evolution process of cylindrical shell with different charges are discussed. The simulation results are consistent with the experimental trend. The SPH results show that due to the propagation and reflection of shock wave between the inner and outer surfaces of cylinder during the loading stage of detonation wave, the distribution of equivalent plastic strain on wall-thickness of the cylinder is a convex shape, i.e. the strain in the middle of wall-thickness is larger than that of in the inner and outer walls; when loading by a higher explosive pressure (JOB-9003), the fracture cracks initiate from the middle of wall-thickness, and then develop to the inner and outer walls along the direction of maximum shear in loading stage, showingthe shear fracture mode. However, under the loading caused by charge RHT-901 with relatively low pressure, although the crack still starts from the middle of wall-thickness and propagates along the shear direction, the shear crack could not grow through the section of the wall completely in the loading stage; then the cylinder experiences the stage of free expansion, the stress state of unbroken zone changes into triaxial tensile stress state and the structural instability, similar to “necking” occurs in the unbroken zone. Consequently, the cracks turn from the shear direction to the necking zone along the radial direction, showing the mixed tensile-shear fracture mode. The proportion of tension and shear cracks is related to the occurrence time of structural instability. The results show that the explosion expanding-fracture process of a metal cylinders involves the interaction between shock wave and cylinder structure, and cannot be treated as that of a series of expansion rings.
- cylinder,
- explosive-expanding,
- fracture modes,
- smoothed particle hydrodynamics,
- 45 steel

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References(27)

References

[1]	TAYLOR G I. The fragmentation of tubular bombs [M]. Cambridge: Cambridge University Press, 1963.
[2]	MEYERS M A. Dynamic behavior of materials [M]. New York: Wiley, 1994.
[3]	TAYLOR G I. Analysis of the explosion of a long cylindrical bomb detonated at one end [J]. Mechanics of Fluids, Scientific Papers of GI Taylor, 1941, 2: 277–286.
[4]	HOGGATT C R, RECHT R F. Fracture behavior of tubular bombs [J]. Journal of Applied Physics, 1968, 39(3): 1856–1862. DOI: 10.1063/1.1656442.
[5]	SINGH M, SUNEJA H R, BOLA M S, et al. Dynamic tensile deformation and fracture of metal cylinders at high strain rates [J]. International Journal of Impact Engineering, 2002, 27(9): 939–954. DOI: 10.1016/S0734-743X(02)00002-7.
[6]	胡海波, 汤铁钢, 胡八一, 等. 金属柱壳在爆炸加载断裂中的单旋现象 [J]. 爆炸与冲击, 2004, 24(2): 97–107. HU H B, TANG T G, HU B Y, et al. An study of uniform shear bands orientation selection tendency on explosively loaded cylindrical shells [J]. Explosion and Shock Waves, 2004, 24(2): 97–107.
[7]	汤铁钢, 谷岩, 李庆忠, 等. 爆轰加载下金属柱壳膨胀破裂过程研究 [J]. 爆炸与冲击, 2003, 23(6): 529–533. TANG T G, GU Y, LI Q Z, et al. Expanding fracture of steel cylinder shell by detonation driving [J]. Explosion and Shock Waves, 2003, 23(6): 529–533.
[8]	汤铁钢, 李庆忠, 孙学林, 等. 45钢柱壳膨胀断裂的应变率效应 [J]. 爆炸与冲击, 2006, 26(2): 129–133. DOI: 10.11883/1001-1455(2006)02-0129-05. TANG T G, LI Q Z, SUN X L, et al. Strain-rate effects of expanding fracture of 45 steel cylinder shells driven by detonation [J]. Explosion and Shock Waves, 2006, 26(2): 129–133. DOI: 10.11883/1001-1455(2006)02-0129-05.
[9]	胡八一, 董庆东, 韩长生, 等. 爆炸金属管的绝热剪切断裂宏观研究 [J]. 爆炸与冲击, 1992, 12(4): 319–325. HU B Y, DONG Q D, HAN C S, et al. The macroscopic study of adiabatic shear fracture of metal tubes under explosive loading [J]. Explosion and Shock Waves, 1992, 12(4): 319–325.
[10]	胡八一, 董庆东, 韩长生, 等. 内部爆轰加载下的钢管膨胀断裂研究 [J]. 爆炸与冲击, 1993, 13(1): 49–54. HU B Y, DONG Q D, HAN C S, et al. Studies of expansion and fracture of explosive-filled steel cylinders [J]. Explosion and Shock Waves, 1993, 13(1): 49–54.
[11]	ZHANG Z B, HUANG F L, CAO Y, et al. A fragments mass distribution scaling relations for fragmenting shells with variable thickness subjected to internal explosive loading [J]. International Journal of Impact Engineering, 2018, 120: 79–94. DOI: 10.1016/j.ijimpeng.2018.05.013.
[12]	罗渝松, 李伟兵, 陈志闯, 等. 内爆加载下金属柱壳的冻结回收方法 [J]. 爆炸与冲击, 2020, 40(10): 104101. DOI: 10.11883/bzycj-2020-0041. LUO Y S, LI W B, CHEN Z C, et al. A freezing recovery method for metallic cylinder shells under internal explosive loading [J]. Explosion and Shock Waves, 2020, 40(10): 104101. DOI: 10.11883/bzycj-2020-0041.
[13]	GOTO D M, BECKER R, ORZECHOWSKI T J, et al. Investigation of the fracture and fragmentation of explosively driven rings and cylinders [J]. International Journal of Impact Engineering, 2008, 35(12): 1547–1556. DOI: 10.1016/j.ijimpeng.2008.07.081.
[14]	潘顺吉, 俞鑫炉, 董新龙. 不同载荷下TA2钛合金柱壳爆炸碎裂的实验研究 [J]. 高压物理学报, 2017, 31(4): 382–388. DOI: 10.11858/gywlxb.2017.04.005. PAN S J, YU X L, DONG X L. Experimental study of fragmentation behavior of exploded TA2 alloy cylinderswith varied charge [J]. Chinese Journal of High Pressure Physics, 2017, 31(4): 382–388. DOI: 10.11858/gywlxb.2017.04.005.
[15]	张世文, 金山, 刘仓理. 含缺陷厚壁圆管爆轰膨胀断裂的数值模拟 [J]. 应用力学学报, 2010, 27(3): 622–625. ZHANG S W, JIN S, LIU C L. Simulation of the dynamic expanding process of thick-walled cylinder with defects [J]. Chinese Journal of Applied Mechanics, 2010, 27(3): 622–625.
[16]	金山, 张世文, 龙建华. 缺陷对圆管膨胀断裂影响的实验研究 [J]. 高压物理学报, 2011, 25(2): 188–192. DOI: 10.11858/gywlxb.2011.02.017. JIN S, ZHANG S W, LONG J H. Experimental study on the influences of defects on expanding fracture of a metal cylinder [J]. Chinese Journal of High Pressure Physics, 2011, 25(2): 188–192. DOI: 10.11858/gywlxb.2011.02.017.
[17]	俞鑫炉, 董新龙, 潘顺吉. 不同爆炸载荷下TA2钛合金圆管膨胀破坏过程 [J]. 爆炸与冲击, 2018, 38(1): 148–154. DOI: 10.11883/bzycj-2017-0014. YU X L, DONG X L, PAN S J. Fracture behaviors of explosively driven TA2 alloy cylinders under different loadings [J]. Explosion and Shock Waves, 2018, 38(1): 148–154. DOI: 10.11883/bzycj-2017-0014.
[18]	LIU M T, REN G W, FAN C, et al. Experimental and numerical studies on the expanding fracture behavior ofan explosively driven 1045 steel cylinder [J]. International Journal of Impact Engineering, 2017, 109: 240–252. DOI: 10.1016/j.ijimpeng.2017.07.008.
[19]	LIU G R, LIU M B, LI S. Smoothed particle hydrodynamics -a meshfree method [M]. NM (United States): World Scientific, 2004.
[20]	REMINGTON T P, OWEN J M, NAKAMURA A M, et al. Numerical simulations of laboratory-scale, hypervelocity-impact experiments for asteroid-deflection code validation [J]. Earth and Space Science, 2020, 7(4): e2018EA000474. DOI: 10.1029/2018EA000474.
[21]	JANKOWIAK T, ŁODYGOWSKI T. Smoothed particle hydrodynamics versus finite element method for blast impact [J]. Bulletin of the Polish Academy of Sciences Technical Sciences, 2013, 61(1): 111–121. DOI: 10.2478/bpasts-2013-0009.
[22]	KONG X S, WU W G, LI J, et al. A numerical investigation on explosive fragmentation of metal casing using smoothed particle hydrodynamic method [J]. Materials & Design, 2013, 51: 729–741. DOI: 10.1016/j.matdes.2013.04.041.
[23]	任国武, 郭昭亮, 张世文, 等. 金属柱壳膨胀断裂的实验与数值模拟 [J]. 爆炸与冲击, 2015, 35(6): 895–900. DOI: 10.11883/1001-1455(2015)06-0895-06. REN G W, GUO Z L, ZHANG S W, et al. Experiment and numerical simulation on expansion deformation and fracture of cylindrical shell [J]. Explosion and Shock Waves, 2015, 35(6): 895–900. DOI: 10.11883/1001-1455(2015)06-0895-06.
[24]	王礼立. 应力波基础 [M]. 2版. 北京: 国防工业出版社, 2005.
[25]	胡昌明, 贺红亮, 胡时胜. 45号钢的动态力学性能研究 [J]. 爆炸与冲击, 2003, 23(2): 188–192. HU C M, HE H L, HU S S. A study on dynamic mechancial behaviors of 45 steel [J]. Explosion and Shock Waves, 2003, 23(2): 188–192.
[26]	孙承纬, 卫玉章, 周之奎. 应用爆轰物理 [M]. 北京: 国防工业出版社, 2000.
[27]	郑柯, 董新龙. 20钢柱壳外爆拉-剪切型断裂研究 [J]. 兵器材料科学与工程, 2018, 41(3): 61–64. DOI: 10.14024/j.cnki.1004-244x.20180428.005. ZHENG K, DONG X L. Tensile-shear failure of 20 steel cylindrical shells subjected to explosive loading [J]. Ordnance Material Science and Engineering, 2018, 41(3): 61–64. DOI: 10.14024/j.cnki.1004-244x.20180428.005.