Academic Journal of Engineering and Technology Science, 2022, 5(7); doi: 10.25236/AJETS.2022.050709.
Lijun Wang, Tao Wang, Sihao Tao, Mingao Qin, Yingjie Lou
Rocket Force University of Engineering, School of Nuclear Engineering, Xi’an 710025, China
In order to study the anti-penetration performance of corrugated plate/aluminum foam composite sandwich structure, LS-DYNA software was used to simulate. The penetration model of 7.62 mm rifle bullet into the sandwich structure was established, and the residual velocities of bullets at five penetration positions were compared and analyzed. The influence of different initial velocity forward penetration and initial velocity 900m/s angle penetration on B is focused. The results show that at different penetration positions, the residual velocity of bullet B is the largest and the anti-penetration performance is the weakest. With the decrease of the initial velocity of the bullet, the movement of the bullet in the structure is different, and the deflection phenomenon occurs when the bullet is penetrating B. When different penetration angles (initial velocity 900m/s) penetrate B, the trajectory of the bullet is approximately a straight line along the penetration angle. When the penetration angle is 30°, it cannot completely penetrate the sandwich structure. The deformation of sandwich structure is mainly shear deformation; under different conditions, the bullet runs through the sandwich structure only at the initial speed of 900 m/s. This study can provide basis and reference for the improvement and application of corrugated plate/aluminum foam composite sandwich structure.
corrugated plate, aluminum foam, anti-penetration performance
Lijun Wang, Tao Wang, Sihao Tao, Mingao Qin, Yingjie Lou. Numerical simulation of anti-penetration performance of corrugated plate/aluminum foam sandwich structure. Academic Journal of Engineering and Technology Science (2022) Vol. 5, Issue 7: 53-59. https://doi.org/10.25236/AJETS.2022.050709.
 NIU W J. Dynamic behavior of aluminum foam sandwich structure under impact loading [D]. Taiyuan University of Technology, 2015.(in chinese)
 ZHANG J B. Analysis and Research on warhead penetration based on ANSYS / LS-DYNA [D]. Xi'an University of Electronic Science and technology, 2009.(in chinese)
 FENG G Z. Study on deformation and energy absorption performance of multilayer corrugated sandwich structure [D]. Taiyuan University of technology, 2019.(in chinese)
 ZHANG Y, LIU P, WANG J Y. Numerical simulation study on bearing characteristics of metal corrugated plate [J]. Electromechanical engineering technology, 2019,48 (10): 133-136
 ZHANG M H, ZHAO H Y, CHEN H S. Experimental study on dynamic penetration resistance of aluminum foam sandwich panels [J]. mechanics quarterly, 2008 (02): 241-247. (in chinese)
 YANG F, WANG Z H, ZHAO L M. Numerical study on the penetration resistance of aluminum foam sandwich panels [J]. science and technology, 2011,11 (15): 3377-3383. (in chinese)
 WANG T, YU W L, QIN Q H, WANG J T, WANG T J. Experimental study on deformation and failure modes of aluminum foam sandwich panels under explosive loading [J]. Journal of Ordnance Engineering, 2016,37 (08): 1456-1463. (in chinese)
 Hoo Fatt M S, Park K S. Perforation of honeycomb sandwich plates by projectiles [J].Composites: Part A, 2000, 31 (8): 889-899.
 Hou W H, Zhu F, Lu G X. Ballistic impact experiments of metallic sandwich panels with aluminum [J]. International Journal of Impact Engineering, 2010, 37 (10): 1045-1055.
 Lu G X, Shen J H, etc. Dynamic indentation and penetration of aluminium foams [J].Internatinal Journal of Mechanical Sciences, 2008, 50(5): 932-943.
 LIU Z M, GAO C. Study on anti penetration ability of porous foam metal [J]. Journal of Beijing University of Technology, 2009, 35 (2): 157-161. (in chinese)
 XIN C L, TU J, WANG J L. From shallow to deep, proficient in LS-DYNA [M]. 1. Beijing: China water resources and Hydropower Press, 2019:30-50.(in Chinese)