蜂窝夹芯板与Whipple结构对撞击能量吸收与耗散的特性比较  

Characteristic comparison of energy absorbing and dissipating of honeycomb panel and Whipple structure in hypervelocity impact

作　　者：张志远[1] 迟润强[1] 庞宝君[1] 管公顺[1] 

机构地区：[1]哈尔滨工业大学空间碎片高速撞击研究中心,哈尔滨150080

出　　处：《应用力学学报》2016年第5期754-759,931,共6页Chinese Journal of Applied Mechanics

基　　金：国家自然科学基金(11172083);中央高校基本科研业务费专项资金(HIT.NSRIF.2015029);微小型航天器技术国防重点学科实验室开放基金(HIT.KLOF.MST.201510)

摘　　要：通过数值仿真模拟弹丸高速撞击蜂窝夹芯板和Whipple结构,研究蜂窝芯对弹丸碎片云形态的影响;并研究了弹丸、蜂窝夹芯板、Whipple结构的能量吸收与耗散。结果表明:弹丸撞击蜂窝夹芯板后碎片云形态呈近似椭球体,且长半轴明显较长,而弹丸撞击Whipple结构的碎片云形态呈近似球体;蜂窝芯吸收的能量随弹丸的破碎程度的增强而增加;弹丸能量衰减主要发生在撞击蜂窝夹芯板的前后面板和Whipple结构的两层板,蜂窝芯的吸能作用使得Whipple结构吸收的能量高于蜂窝夹心板面板吸收的能量。To investigate the influence of honeycomb core on projectile debris cloud shape, the energy absorption and consumption of projectile, the honeycomb sandwich panel and Whipple structure are numerically simulated. As results of the simulation, it reveals that the debris cloud shape is approximate ellipsoid after projectile impacted honeycomb sandwich panel and the semi-major axis is obvious longer, while the debris cloud shape is approximate sphere when it impacted Whipple structure. The energy that honeycomb core absorb increased with the projectile broken degree. Most of the energy is attenuated when a projectile impacts the front panel and back panel of honeycomb sandwich panel and the two layer board of Whipple structure, meanwhile, because of function of honeycomb core, the energy absorbed by Whipple structure is more than front and back panel of honeycomb sandwich panels.

关 键 词：蜂窝夹芯板 Whipple结构 能量 

分 类 号：TB31[一般工业技术—材料科学与工程]