A5059020766- High-Velocity Impact and Material Behavior
- Energetic Materials and Combustion
- Structural Response to Dynamic Loads
- Electromagnetic Launch and Propulsion Technology
Northwest Institute of Nuclear Technology
2020-2024
A general geometric model of the elliptical cross-section double-ogive-nose projectile (ECDP) was established, and expression penetration resistance obtained. Based on special shape process characteristics ECDP, a three-stage constructed, closed-form equations were derived. Three ECDPs with major–minor axis ratio 1.5 launched by 130 mm gas-gun to impact plain concrete targets oblique angle 10° at nominal striking velocity 650 m/s, experimental data such as depth failure characteristic...
Abstract The complexity of penetrating projectile’s structure is not adequately considered in existing research penetration. Based on this actuality, high-speed reinforced concrete penetration experiment conducted and necking at the front end shank found to be most significant phenomenon. Mindlin–Herrmann rod theory adjusted with elastoplastic constitution finite element method applied calculation. Cavity expansion as longitudinal radial load estimation. calculation results denote that both...
Abstract Elliptical cross-sectional projectiles have recently attracted attention because they fit the flattened shape of earth-penetrating weapons. This study aims to investigate a rigid elliptical projectile with different geometrical characteristics penetration into semi-infinite concrete targets by implementing theoretical method. The general geometric models four types are introduced; closed-form equations then derived based on dynamic cavity-expansion theory. Furthermore, present...