| EAM势晶格的力学稳定性 |
| |
| 引用本文： | 蔡军,方正知.EAM势晶格的力学稳定性[J].北京科技大学学报,1996,18(1):14-17,83. |
| |
| 作者姓名： | 蔡军 方正知 |
| |
| 作者单位： | [1]北京科技大学新金属材料国家重点实验室 [2]北京科技大学材料物理系 |
| |
| 摘 要： | 推导出用ＥＡＭ（ｅｍｂｅｄｄｅｄ－ａｔｏｍｍｅｔｈｏｄ）势表达的力学稳定性判据，给出了确定势函数适用范围的理论判据及相应的数值方法。应用该方法计算不仅可以确定ＥＡＭ势的可靠性及适用范围，而且可以得到材料的理论拉伸强度和与之相应的应变值、材料的理论应力－应变曲线以及材料的晶格常数、弹性常数、结合能等。
|
| 关 键 词： | EAM势 力学稳定性 拉伸强度 晶体 晶格常数 |
Mechanical Stability of Crystal Lattic of EAM Potential |
| |
| Cai Jun, Chen Guoliang, Fang Zhengzhi.Mechanical Stability of Crystal Lattic of EAM Potential[J].Journal of University of Science and Technology Beijing,1996,18(1):14-17,83. |
| |
| Authors: | Cai Jun Chen Guoliang Fang Zhengzhi |
| |
| Abstract: | The reliability and suitability of EAM potentials can be identified by making a numerical calculation from the point of the view of mechanical stability of cubic crystals under uniaxial external foree,the general theory of the mechanical stability is p resented letter.Using the numerical method the theo retical strength,corresponding strain,atom cohesive energy,and elastic constants of the crystals can be also obtained. |
| |
| Keywords: | EAM potetial reliability and suitability of potential function theoretical strength |
| 本文献已被 CNKI 维普 等数据库收录！ |
