Research on Designing Profiled Rod Warhead

Huijun Ning^1,2, Hao Wang¹, Cheng Zhang¹, Dongyang Chen¹ , Wenjun Ruan¹

(1.School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;2. School of Civil Engineering, Henan University of Science and Technology, Luoyang Henan, 471023, China)



Abstract:

A new Kinetic Energy Rod (KER) warhead named profiled rod warhead is proposed in this paper. Based on the design of profiled rod warhead, a model of profiled rod driven by detonation is established. The detonation process is simulated by ANSYS/LS-DYNA, and the deployment velocity and initial flight attitude of rod are achieved. In addition, static rod deployment testing are performed to investigate the damage effect, the spatial flight attitude and deployment velocity. A satisfactory agreement is obtained by the comparison between numerical results and testing results. Meanwhile, the profiled rod studies are conducted to determine a higher penetrability compared with traditional cylindrical rods. Rigid body dynamics equations of profiled rod, which accounts for the influence of air resistance, are set up to predict the flight trajectory of long-distance. The results show that the profiled rod may provide a better penetration angle which still maintains a significant penetrability against projectiles when the rods move off long-distance range.

Key words:  profiled rod  detonation driving  deployment testing  damage effect  flight trajectory

DOI：10.11916/j.issn.1005-9113.2015.04.016

Clc Number:TJ760.3

Fund: