TY - JOUR
T1 - Research on Perforation Limit Thickness of Low Carbon Steel Plates Impacted Normally by Tungsten Spheres
AU - Xu, Yu Xin
AU - Ren, Jie
AU - Wang, Shu Shan
N1 - Publisher Copyright:
© 2017, Editorial Department of Transaction of Beijing Institute of Technology. All right reserved.
PY - 2017/6/1
Y1 - 2017/6/1
N2 - Perforation limit thickness of low carbon steel plates impacted normally by tungsten spheres was studied. Based on six-projectile test data analysis method, ballistic limit velocity and the range of perforation limit thickness were obtained by using tungsten spheres with Φ6.0 mm (93 W), Φ7.0 mm(93 W), Φ6.0 mm(95 W) and Φ7.5 mm(95 W) to impact Q235A steel plates with 6 different thicknesses. Numerical simulation with the same experimental conditions was conducted using Autodyn-3D software. After the reliability of simulation model was verified, perforation limit thickness range was obtained by simulation and the energy transformation rule of the penetration process was analyzed. The calculation model for perforation limit thicknesses of steel plates impacted normally by tungsten spheres was established based on the principle of energy conservation. The calculation results of the perforation limit thicknesses of Q235A steel plates struck normally by tungsten spheres with Φ6.0 mm (93 W), Φ7.0 mm(93 W), Φ6.0 mm(95 W) and Φ7.5 mm(95 W) were respectively 16.95, 19.17, 17.30 and 21.50 mm. The error between the experiment results and the range obtained from simulation analysis is no more than 10%. This research provides basic data and the method for the design of the kill element of blast-fragmentation warhead.
AB - Perforation limit thickness of low carbon steel plates impacted normally by tungsten spheres was studied. Based on six-projectile test data analysis method, ballistic limit velocity and the range of perforation limit thickness were obtained by using tungsten spheres with Φ6.0 mm (93 W), Φ7.0 mm(93 W), Φ6.0 mm(95 W) and Φ7.5 mm(95 W) to impact Q235A steel plates with 6 different thicknesses. Numerical simulation with the same experimental conditions was conducted using Autodyn-3D software. After the reliability of simulation model was verified, perforation limit thickness range was obtained by simulation and the energy transformation rule of the penetration process was analyzed. The calculation model for perforation limit thicknesses of steel plates impacted normally by tungsten spheres was established based on the principle of energy conservation. The calculation results of the perforation limit thicknesses of Q235A steel plates struck normally by tungsten spheres with Φ6.0 mm (93 W), Φ7.0 mm(93 W), Φ6.0 mm(95 W) and Φ7.5 mm(95 W) were respectively 16.95, 19.17, 17.30 and 21.50 mm. The error between the experiment results and the range obtained from simulation analysis is no more than 10%. This research provides basic data and the method for the design of the kill element of blast-fragmentation warhead.
KW - High velocity penetration dynamics
KW - Low carbon steel
KW - Perforation limit thickness
KW - Tungsten sphere
UR - http://www.scopus.com/inward/record.url?scp=85028838587&partnerID=8YFLogxK
U2 - 10.15918/j.tbit1001-0645.2017.06.001
DO - 10.15918/j.tbit1001-0645.2017.06.001
M3 - Article
AN - SCOPUS:85028838587
SN - 1001-0645
VL - 37
SP - 551
EP - 556
JO - Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology
JF - Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology
IS - 6
ER -
