论文标题
分子动力学模拟单晶镍中裂纹生长，带有空隙和夹杂物
Molecular dynamics simulation of crack growth in mono-crystal nickel with voids and inclusions
论文作者
论文摘要
在这项研究中，已经通过分子动力学模拟研究了带有空隙和夹杂物的预折叠的单晶镍的裂纹传播。不同尺寸的空隙，包含物和包含物的材料用于在裂纹传播过程中充分研究空隙和夹杂物的影响。位错演化，应力分布和裂纹长度分析为相关的机械性能。结果表明，空隙和夹杂物可以改变预折叠的单晶镍的裂纹传播路径。此外，结果表明，空隙和夹杂物可以更好地对单晶体的塑性变形具有更好的抗性，并且夹杂物可以使系统更难断裂。
In this study, the crack propagation of the pre-cracked mono-crystal nickel with the voids and inclusions has been investigated by molecular dynamics simulations. Different sizes of voids, inclusions and materials of inclusions are used to fully study the effect of the voids and inclusions during the crack propagation process. The dislocations evolution, stress distribution and crack length are analyzed as the associated mechanical properties. The results indicate that the voids and inclusions can change the path of crack propagation of the pre-cracked mono-crystal nickel. Moreover, the results show that the voids and inclusions can lead a better resistance to plastic deformation of the mono-crystal and the inclusions can make the system more difficult to fracture.
