动能弹侵彻机场跑道的数值模拟  

Numerical simulation of the kinetic energy projectiles penetrating into airport runway

作　　者：郁时炼[1] 吕磊[2] 卢爱红[1] 

机构地区：[1]中国矿业大学理学院,江苏徐州221116 [2]徐州空军学院五系,江苏徐州221000

出　　处：《湖南科技大学学报（自然科学版）》2009年第2期45-48,共4页Journal of Hunan University of Science And Technology：Natural Science Edition

基　　金：国家自然科学基金重点项目(50634050);国家重点基础研究发展计划(2007CB209400);国家自然科学基金项目(50574090);中国矿业大学青年科研基金资助项目(2006A039);高等学校学科创新引智计划项目(B07028)

摘　　要：采用LS-DYNA软件,对动能弹侵彻机场跑道的过程及混凝土的性质对侵彻效果的影响进行了有效的数值模拟,得到了一定结构下动能弹侵彻机场跑道的侵彻深度、各层的穿透速度等特征.混凝土的性质决定了侵彻深度及破坏范围的大小.结果表明:随着混凝土弹模的增加,动能弹侵彻机场跑道深度有增加趋势,侵彻深度的增加,使得弹药爆炸时,跑道破坏的范围增加;而且随着混凝土弹模的增加,混凝土层的抗侵彻能力增强,研究结果对机场跑道的设计及要采取的抢修措施具有重要意义.The process of the Kinetic Energy Projectiles Penetrating into Airport runway and effect of the concrete properties on penetration is simulated in software LS-DYNA. The characters of penetration depth and penetration velocity are acquired when missile penetrates the airport runway under certain structure. The properties of concrete decides the penetration depth and the size of the destruction scope. The results show： ： with the increase of concrete Young＇s modulus , the depth gets an upward trend when the missile penetrates the airport runway. The increase in penetration depth, making the explosion of ammunition, to increase the scope of the destruction of the runway.Moreover, With the increase of concrete Young＇s modulus , the anti-penetration capability of the concrete layer has been enhanced. This result to the design of the airport runway and repair measures to be taken is of great significance. It has an important significance of designing of the airport runway and taking effective measures to repair the runway. 8figs., 12refs.

关 键 词：机场跑道 混凝土性质 数值模拟 侵彻深度 

分 类 号：O385[理学—流体力学]