SPH simulation and analytical analysis for blunt projectiles normally penetrating intomono-layer and multi-layer steel targets

PDF(2001 KB)

Journal of Vibration and Shock ›› 2018, Vol. 37 ›› Issue (19) : 166-173.

XIAO Yihua, DONG Huanghuang, ZHOU Jianmin

Author information +

History +

Abstract

A SPH model for blunt projectiles normally penetrating into Weldox 460 E steel targets was established.The model was verified with test data.The verified SPH model was used to simulate penetration processes of mono-layer targets with thickness of 2 to 12 mm to establish an empirical formula for the relation between ballistic limit velocitiesy and thickness.Also numerical simulations for blunt projectiles penetrating into multi-layer targets were performed to analyze effects of number of layers, total thickness and thickness combination on targets’ anti-penetration performance.Based on the established empirical formula for ballistic limit velocities of monolayer targets, an analytical model for predicting ballistic limit velocities of multi-layer targets was derived.The calculated results of ballistic limit velocity with the analytical model were compared with those obtained with SPH simulations.The comparison showed that both of them are close to each other, and their relative error is basically within 10%.

Key words

perforation / SPH simulation / analytical model

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

XIAO Yihua, DONG Huanghuang, ZHOU Jianmin. SPH simulation and analytical analysis for blunt projectiles normally penetrating intomono-layer and multi-layer steel targets[J]. Journal of Vibration and Shock, 2018, 37(19): 166-173

References

[1] Woodward R L, Cimpoeru S J. A study of the perforation of aluminium laminate targets [J]. International Journal of Impact Engineering, 1998, 21(3): 117-131.
[2] Gupta N K, Madhu V. An experimental study of normal and oblique impact of hard-core projectile on single and layered plates [J]. International Journal of Impact Engineering, 1997, 19(5-6): 395-414.
[3] Corran R S J, Shadbolt P J, Ruiz C. Impact loading of plates - an experimental investigation [J]. International Journal of Impact Engineering, 1983, 1(1): 3-22.
[4] 赫鹏, 卿光辉, 李建峰, 等. 2A12铝合金薄板对卵头头弹抗冲击性能研究[J]. 振动与冲击, 2016, 35(17): 19-25.
HE Peng, QIN Guang-hui, LI Jian-feng. et al. Ballistic resistance of 2A12 thin plates against ogival-nosed projectiles impact [J]. Journal of Vibration and Shock, 2016, 35(17): 19-25.
[5] Dey S, Børvik T, Teng X, et al. On the ballistic resistance of double-layered steel plates: An experimental and numerical investigation [J]. International Journal of Solids and Structures, 2007, 44(20): 6701-6723.
[6] Teng X, Dey S, Børvik T, et al. Protection performance of double-layered metal shields against projectile impact [J]. Journal of Mechanics of Materials and Structures, 2007, 2(7): 1309-1330.
[7] Iqbal M A, Chakrabarti A, Beniwala S, et al. 3D numerical simulations of sharp nosed projectile impact on ductile targets[J]. International Journal of Impact Engineering, 2010, 37(2): 185-195.
[8] Flores-Johnson E A, Saleh M, Edward L. Ballistic performance of multi-layered metallic plates impacted by a 7.62-mm APM2 projectile [J]. International Journal of Impact Engineering, 2011, 38(12): 1022-1032.
[9] Xiao Y H, Dong H H, Zhou J M, et al. Studying normal perforation of monolithic and layered steel targets by conical projectiles with SPH simulation and analytical method [J]. Engineering Analysis with Boundary Elements, 2017, 75: 12-20.
[10] Liu G R, Liu M B. Smoothed particle hydrodynamics: a meshfree particle method [M]. World Scientific, Singapore, 2003.
[11] Yang G, Han X, Hu D A. Simulation of explosively driven metallic tubes by the cylindrical smoothed particle hydrodynamics method [J]. Shock Waves, 2015, 25(6): 573-587.
[12] 杨刚, 傅奕轲, 胡德安. 固体冲击模拟的轴对称光滑粒子法[J]. 计算机辅助工程, 2013, 22(6): 84-89.
Yang Gang, Fu Yi-ke, Hu De-an. Axisymmetric smoothed particle hydrodynamics method for solid impact simulation [J]. Computer Aided Engineering, 2013, 22(6): 84-89.
[13] Børvik T, Hopperatad O S, Berstad T, et al. A computational model of viscoplasticity and ductile damage for impact and penetration [J]. European Journal of Mechanics-A/Solids, 2001, 20(5): 685-712.
[14] Børvik T, Lanseth M, Hopperatad O S, et al. Perforation of 12mm thick steel plates by 20mm diameter projectiles with flat, hemispherical and conical noses, Part Ⅱ: numerical simulations [J]. International Journal of Impact Engineering, 2002, 27(1): 37-64.
[15] Børvik T, Hopperatad O S, Lanseth M, et al. Effect of target thickness in blunt projectile penetration of Weldox 460 E steel plates [J]. International Journal of Impact Engineering, 2003, 28(4): 413-464.
[16] Ben-Dor G, Dubinsky A, Elperin T. Effect of layering on ballistic properties of metallic shields against sharp-nosed rigid projectiles [J]. Engineering Fracture Mechanics, 2010, 77(14): 2791-2799.