摘要
本文联立求解可压缩平面液体撞击弹性固体表面时液体激波面及液固相界面上的物理过程控制方程组,导出了激波速度、撞击压力和固体表面变形速度的计算公式.导出的公式中包括了表征液体可压缩性的撞击马赫数M_0和表征固体弹性的液固声阻抗比Γ.通过计算液体撞击PMMA,钙钠玻璃、ZnSe和1Cr13时的撞击压力,本文具体分析了M_0和Γ对撞击压力产生的综合影响。
A more reasonable conputing formula expressed relationship among shockwave velocity, Impact pressure and deformation velocity of solid surface in high-speed water-solid impact is derived by solving the fundamental equations set governed the physical process on the liquid shock-wave and liquid-solid interface as compressible liquid collide with elastic solid surface.The formula includes the impact Mach Number Mo ane the ratio of acoustic impedances between liquid ans solid. By calculating the impact pressures as liquid collide with surfaces of PMMA, soda-lime glass, ZnSe and ICr13, the paper analyzes the co-influence of solid elasticity and liquid compressibility on the impact pressure.
出处
《应用力学学报》
CAS
CSCD
北大核心
1989年第4期73-75,118,共3页
Chinese Journal of Applied Mechanics
基金
国家自然科学基金赞助项目
关键词
液-固碰撞
撞击压力
液体
固体
liquid-solid impact
solid elasticity
liquid compressibility
