防弹衣在战争中有很重要的作用,防弹衣究竟是怎么做出来的呢?
推荐回答(5个)
防弹衣是一种单兵防护装具,它用于防护弹头或弹片对人体的伤害。古代战争中使用的主要地刀,矛,弓箭等冷兵器,士兵身披盔甲可有效地保护身体,减少冷兵器的伤害。自从出现枪,炮等火器后,这种情况就发生了改变。
为防火器,需要重打30-40公斤的甲胄,这将使士兵很难完成各种战斗任务。 于是,进入火器朝代后,盔甲便渐遭淘汰。但是,人们并未放弃对身体防护装备的追求。第一次世界大战中,人们发现士兵的伤亡大部分是由炮弹,手榴弹。
炸弹和地雷的弹片造成的。这期间诞生的钢盔在实战中证明了可有效地防护弹片对士兵头部的伤害。在一次和二次世界大战中,曾有一些国家研制和使用过钢或合金钢制做的胸甲和防弹衣。 但由于过于沉重,穿着后行动不便,步兵实际无法使用。
直至本世纪40年代以前,人们所考虑的防弹衣材料一直未跳出金属材料的圈子现代防弹衣的雏型出现于50年代的朝鲜战争期间。美军首先试验使用尼龙这类软质合成纤维材料制做防弹衣。他们发现12层特制尼龙纤维布可收到一定的防弹效果。
当弹丸击中防弹衣时,纵横交织的多层尼龙纤维象网一样裹住弹丸,弹丸继续运动的话就必须拉伸尼龙纤维,尼龙纤维的张力减低了弹丸的运动速度,消耗并吸收了弹丸的动能。由于弹片的动能和运动速度一般比弹丸低得多,所以尼龙防弹衣对弹片的防护作用更明显。
在60年代的越南美陆军将M69式尼龙防弹衣列为制式装备。 但由于尼龙纤维的抗张强度所限,尼龙防弹衣要收到好的防护效果,重量需4。5公斤以上。据有关专家的试验和分析,穿插上这么重的防弹衣,士兵的作战能力会降低30%以上。
在潮湿炎热的越南战场上,美军士兵更是难以忍受尼龙防弹衣所带来的负担和闷热感,而不穿防弹衣在现代战争中是很危险的。 大量的统计分析表明,现代战争中弹片是对士兵的主要威胁,它占导致伤亡原因的3/4其余的1/4才是冲击波,枪弹,烧灼等造成的。
防弹衣由金属(特种钢、铝合金、钛合金)、陶瓷(刚玉、碳化硼、碳化硅)、玻璃钢、尼龙、凯芙拉等材料组成。
由于陶瓷纤维具有一定柔韧性,所以在一定程度上可以抵挡子弹射入体内我国的防弹衣是由许多陶瓷纤维组成的
防弹衣在战争中有很重要的作用我国的防弹衣是由许多陶瓷纤维组成的
由于陶瓷纤维具有一定柔韧性,所以在一定程度上可以抵挡子弹射入体内,这样防弹衣既很轻,相应的防弹效果不减反增,如此防弹衣当然会受到欢迎!
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