TY - GEN
T1 - Deformable Special-Shaped Projectile Impacting Basalt Target
T2 - 29th International Conference on Computational and Experimental Engineering and Sciences, ICCES 2023
AU - Ren, Guang
AU - Wu, Haijun
AU - Dong, Heng
AU - Lv, Yingqing
AU - Huang, Fenglei
N1 - Publisher Copyright:
© 2024, The Author(s), under exclusive license to Springer Nature Switzerland AG.
PY - 2024
Y1 - 2024
N2 - Using kinetic energy to crush high-strength rocks and then collect particle samples has attracted much attention in the Near-Earth Asteroid (NEA) sampling scheme. In this study, two deformable special-shaped projectiles of tantalum: petal-penetrating type (T1), petal-non-penetrating type (T2), and high-speed (453.0–612.0 m/s) impact experiments, were designed to study the projectile-target interaction and rock fracture mechanisms based on a 14 mm ballistic gun platform. Results shown that deformation of the Special-Shaped Projectile is related to the plasticity of material and projectile configuration; The projectile-target interaction of the T2 is two-phase processes: multi-point simultaneous impact and the Taylor impact, which increase the diameter and depth of the crushing zone and raise the mass of spalled-rock particles about three times than T1. The two-phase processes inspiring to create the projectile’s head and cylinder section from different properties of materials respectively. This research inspires the design of the deformable special-shaped projectile and the comprehension of the fracture mechanisms of rocks under high-speed impact.
AB - Using kinetic energy to crush high-strength rocks and then collect particle samples has attracted much attention in the Near-Earth Asteroid (NEA) sampling scheme. In this study, two deformable special-shaped projectiles of tantalum: petal-penetrating type (T1), petal-non-penetrating type (T2), and high-speed (453.0–612.0 m/s) impact experiments, were designed to study the projectile-target interaction and rock fracture mechanisms based on a 14 mm ballistic gun platform. Results shown that deformation of the Special-Shaped Projectile is related to the plasticity of material and projectile configuration; The projectile-target interaction of the T2 is two-phase processes: multi-point simultaneous impact and the Taylor impact, which increase the diameter and depth of the crushing zone and raise the mass of spalled-rock particles about three times than T1. The two-phase processes inspiring to create the projectile’s head and cylinder section from different properties of materials respectively. This research inspires the design of the deformable special-shaped projectile and the comprehension of the fracture mechanisms of rocks under high-speed impact.
KW - Deformable special-shaped projectile
KW - High-speed impact
KW - Projectile-target interaction
UR - http://www.scopus.com/inward/record.url?scp=85180633851&partnerID=8YFLogxK
U2 - 10.1007/978-3-031-42987-3_66
DO - 10.1007/978-3-031-42987-3_66
M3 - Conference contribution
AN - SCOPUS:85180633851
SN - 9783031429866
T3 - Mechanisms and Machine Science
SP - 953
EP - 961
BT - Computational and Experimental Simulations in Engineering - Proceedings of ICCES 2023—Volume 2
A2 - Li, Shaofan
PB - Springer Science and Business Media B.V.
Y2 - 26 May 2023 through 29 May 2023
ER -