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疲劳in文件时间：2025-05-06 听过要加缺陷才能出现疲劳损伤，可以在下面的in文件中添加一个缺陷试试。具体的方法要看论文 dimension 3 boundary s s s units metal atom_style atomic neighbor 3.0 bin neigh_modify every 1 delay 0 check yes pair_style eam region box block 0 119.295 0 36.15 -54.225 54.225 units box create_box 2 box lattice fcc 3.6150 region Cu block 0 119.295 0 36.15 -18.075 18.075 units box create_atoms 1 region Cu region cu_up block 0 36.15 0 36.15 18.075 54.225 units box create_atoms 2 region cu_up region cu_down block 0 36.15 0 36.15 -54.225 -18.075 units box create_atoms 2 region cu_down pair_coeff * * Cu_u3.eam region left block INF 0.1 INF INF INF INF units box group left region left region right block 119.1 INF INF INF INF INF units box group right region right group up region cu_up group down region cu_down group cu subtract all left right up down timestep 0.002 thermo 100 thermo_style custom step temp pxx pyy pzz thermo_modify flush yes velocity cu create 300 5645354 loop local dist gaussian rot yes dump mydump1 all atom 10000 atom1.lammpstrj fix fxnvt cu nvt temp 300.0 300.0 0.2 run 100000 fix 1 right move wiggle 0.0 0.0 20.0 1000 units box #为了出现疲劳可能要跑很长时间 run 1000000 感谢鲍路瑶老师的分享，内容来自于鲍老师分享出来的资料 如有需要添加微信：lmp_zhushou 进入微信群，帮助他人，共建社区 获取完整版lammps讲义可以加微信lmp_zhushou或加入QQ群994359511 |