摘要
用简单的自由电子气模型对金属铁、铜、铝、铅的冲击压缩特性进行了数值计算,计算结果表明材料并不能无限地被压缩,存在极限压缩度,随着压缩度的增加,在冲击压力增加的同时,冲击温度也急剧上升,限制了材料的进一步压缩,本文计算的这几种材料的极限压缩度为3.9.
The Shock compression properties of the metals Iron、Copper、Aluminum and Lead respectively were calculated and evaluated numerically by a simple free-electron gas model. Calculations show that the materials cannot been arbitrarily compressed and have a shock compression limitation. When pressures increase the shock temperatures have also a steep rise to block continuous compression of materials and the maximum compression can be able to reach 3.9fold of initial density.
出处
《原子与分子物理学报》
CAS
CSCD
北大核心
2007年第2期384-386,共3页
Journal of Atomic and Molecular Physics
基金
中国工程物理研究院冲击波物理和爆轰波物理国家重点实验室基金(9140C67120206ZS7502
51478678905ZS7501)
关键词
极限压缩度
自由电子气模型
shock compression limitation, free-electron gas model