| 高速液—固碰撞时固体弹性和液体可压缩性对撞击压力的影响 |
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| 引用本文： | 施红辉,俞茂铮.高速液—固碰撞时固体弹性和液体可压缩性对撞击压力的影响[J].应用力学学报,1989,6(4):73-75. |
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| 作者姓名： | 施红辉 俞茂铮 |
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| 作者单位： | 西安交通大学
(施红辉，俞茂铮)，西安交通大学(蔡颐年) |
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| 基金项目： | 国家自然科学基金赞助项目 |
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| 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。
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| 关 键 词： | 液－固碰撞 撞击压力 液体 固体 |
INFLUENCE OF SOLID ELASTICITY AND LIQUID COMPRESSIBILITY ON THE IMPACT PRESSURE IN HIGH-SPEED LIQUID-SOLID IMPACT |
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| Shi Honghui Yu Maozheng Cai Yinian.INFLUENCE OF SOLID ELASTICITY AND LIQUID COMPRESSIBILITY ON THE IMPACT PRESSURE IN HIGH-SPEED LIQUID-SOLID IMPACT[J].Chinese Journal of Applied Mechanics,1989,6(4):73-75. |
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| Authors: | Shi Honghui Yu Maozheng Cai Yinian |
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| Institution: | Xi'an Jiaotong University |
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| Abstract: | 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. |
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| Keywords: | liquid-solid impact solid elasticity liquid compressibility |
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