摘要
对陶瓷球和尼龙球弹丸进行循环加热,并使用二级轻气炮发射弹丸高速撞击编织物填充式结构。非金属弹丸循环加热的温度范围为20-150℃,撞击速度为1.52-3.26 km/s,撞击角度为0°,得到编织物填充式结构在不同材料弹丸高速撞击下的损伤模式,研究了循环加热对非金属弹丸高速撞击破碎特性和编织物填充式结构撞击损伤特性的影响。结果表明,在弹丸尺寸和撞击动能分别相同的情况下,用陶瓷球弹丸高速撞击薄铝板比用铝球弹丸产生的穿孔尺寸更小;循环加热后的陶瓷和尼龙弹丸造成填充层更大尺寸的中心撞击穿孔;循环加热后陶瓷球弹丸对编织物填充式结构后板的高速撞击破坏能力增强,尼龙球弹丸对后板的高速撞击破坏能力减弱。
A two-stage light gas gun is used to launch nonmetallic projectiles, which were heated cy- clically before launch, impacting on woven stuffed shield. The damage model of woven stuffed shield impacted by projectiles of different materials was acquired. The effect of cyclic heating of nonmetallic projectile on the fragmentation characteristics of the projectile and the damage of woven stuffed shield was investigated. The nonmetallic projectile was heated cyclically in a temperature range of 20-150℃. Impact velocities of projectile varied in a range of 1.52-3.26 km/s. The impact angle was 0°. The results indicate that the perforation diameter of thin A;-plate impacted by ceramic projectile is smaller than that by Al- sphere when the size of the two projectiles are the same. The cyclically heated projectiles of ceramic and nylon can cause larger center impact perforations of woven stuffed bumper. Furthermore, the cyclic heating could enhance the damage capability of ceramic projectile but weaken that of nylon projectile on woven stuffed shield.
出处
《材料研究学报》
EI
CAS
CSCD
北大核心
2016年第5期329-335,共7页
Chinese Journal of Materials Research
基金
国家自然科学基金11172083资助项目~~
关键词
无机非金属材料
非金属弹丸
循环加热
高速撞击
编织物
损伤
inorganic non-metallic materials, non metallic projectile, cyclic heating, high-velocity impact, woven bumper, damage
