钢/尼龙夹层板抗爆性能研究

Research on the explosion resisting performance of steel/nylon sandwich plate

舰船结构在战斗中会受到炮弹与子弹的撞击,同时也面临炸药产生冲击波带来的损伤。钢/尼龙夹层板具有优良的抗爆性能,使得战舰在冲击过程中大大减少结构的破坏;钢/尼龙夹层板是一种具有较高比刚度与比强度的结构,本文使用有限元模拟软件分析比较了钢板与钢/尼龙夹层板在冲击波作用下的吸能情况和不同结构形式夹层板在相同冲击波作用下的响应情况,并将夹层板与同等质量钢板的吸能进行分析比较,结果表明钢/尼龙夹层板具有更好的吸能效果。当夹层板总厚度一定时,夹层板的厚度比与其对应的比变形之间存在幂函数的关系。

Marine structures will be hit by the shells and bullets in a naval battle. Simultaneously, the structures are faced with catastrophic destruction generated by detonation and shock wave. Steel/nylon sandwich plate has superior blast resistance properties, as a result, destructions of such structures will be significantly alleviated the structural damage during the shock phase; Steel/nylon sandwich plate is a superior structure of high stiffness and strength; in our work finite element simulation software was employed to analyze the energy absorption capabilities of steel plate and steel/nylon sandwich plate and the response of sandwich plates of various structures. The energy absorption capabilities of sandwich plates was analyzed and compared with steel plates of equal mass. Results show that the steel/nylon sandwich plate has better energy absorption capabilities. When the total thickness of the sandwich plate is kept constant, a power function relationship is found between the thickness and the corresponding deformation of the sandwich plate.