Study on the reaming size of PELE shell penetration reinforced concrete

DOI:	10.11809/bqzbgcxb2023.11.008
Keywords:	lateral effects; reinforced concrete target; PELE; reaming size; numerical simulation
Abstract:	In order to study the effects of different penetration speeds, shell grooving lengths and plug block thicknesses on the transverse effects of reinforced concrete targets in transverse effect projectiles (PELE), LS DYNA finite element simulation software is used to numerically calculate the penetration of PELE projectiles into reinforced concrete targets. The influence of PTLE of different structures on the penetration failure effect of reinforced concrete target is analyzed by orthogonal optimization, and the correctness of the simulation method is verified by experiments. The results show that when the penetration speed of the projectile body is 900 m/s, the groove length is 80 mm and the thickness of the plug block is 10 mm, the through hole size of the reinforced concrete target failure is up to 564.3 mm, and the lateral effect of PELE projectile is the best. At the same time, grooving on the surface of the shell can reduce the strength of the shell structure and enable the middle of the projectile to expand rapidly, improve the reaming effect of the projectile on the target plate, and the length of the shell groove is the main influencing factor of PELE projectile on the diameter D of the reinforced concrete target through hole, followed by the thickness of the plug block, and the penetration speed of the projectile body is the smallest.
Issue:	Vol. 44 No. 11 (2023)
Published:	2023-11-28
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