CAJ | 학술논문

利用球形弹和柱形弹对Kevlar/乙烯基树脂和E-玻璃纤维/乙烯基树脂三维正交机织复合材料进行弹道实验.结果表明,材料对球形弹的抗侵彻能力比对柱形弹的强;Kevlar/乙烯基树脂比E-玻璃纤维/乙烯基树脂具有更好的抗弹侵彻性能;迎弹面以压缩剪切破坏为主,而背面则以纤维拉伸破坏模式为主;z向纤维的存在,提高了三维正交机织复合材料的面内强度,使之不易发生分层、鼓包等破坏现象,其结果使得面内吸能为其主要吸能机制.
이용구형탄화주형탄대Kevlar/을희기수지화E-파리섬유/을희기수지삼유정교궤직복합재료진행탄도실험.결과표명,재료대구형탄적항침철능력비대주형탄적강;Kevlar/을희기수지비E-파리섬유/을희기수지구유경호적항탄침철성능;영탄면이압축전절파배위주,이배면칙이섬유랍신파배모식위주;z향섬유적존재,제고료삼유정교궤직복합재료적면내강도,사지불역발생분층、고포등파배현상,기결과사득면내흡능위기주요흡능궤제.
Ballistic experiments were performed for Kevlar/Vinyl and E-glass/Vinyl 3D orthogonal woven composites (3D-OWC) impacted by spherical and cylindrical bullets. The results show that the anti-penetration abilities of the targets against spherical bullets are higher than those against cylindrical bullets and the absorption energy per unit area density of Kevlar/Vinyl 3D-OWC is more than that of E-glass/Vinyl 3D-OWC. The major failure mechanisms at the impact sides of the targets are shear and compression failure, but only tension failure can be observed at the back sides of the targets. The z-fibers can improve the in-plane strength of 3D-OWC and the in-plane energy absorption is the major energy absorption mechanism of 3D-OWC.