Mechanical responses of pristine and defective C3N nanosheets studied by molecular dynamics simulations

2018 ◽  
Vol 147 ◽  
pp. 316-321 ◽  
Author(s):  
A.H.N. Shirazi ◽  
R. Abadi ◽  
M. Izadifar ◽  
N. Alajlan ◽  
T. Rabczuk
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulations ◽  
Mechanical Responses ◽  
Dynamics Simulations

scholarly journals Anisotropic shock responses of nanoporous Al by molecular dynamics simulations

PLoS ONE ◽  
2021 ◽  
Vol 16 (3) ◽  
pp. e0247172
Author(s):  
Xia Tian ◽  
Kaipeng Ma ◽  
Guangyu Ji ◽  
Junzhi Cui ◽  
Yi Liao ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Shear Stress ◽  
Molecular Dynamics Simulations ◽  
Dislocation Nucleation ◽  
Shape Evolution ◽  
Mechanical Responses ◽  
Slip Planes ◽  
Dynamics Simulations ◽  
Collapse Rate ◽  
Crystallographic Orientations

Mechanical responses of nanoporous aluminum samples under shock in different crystallographic orientations (<100>, <111>, <110>, <112> and <130>) are investigated by molecular dynamics simulations. The shape evolution of void during collapse is found to have no relationship with the shock orientation. Void collapse rate and dislocation activities at the void surface are found to strongly dependent on the shock orientation. For a relatively weaker shock, void collapses fastest when shocked along the <100> orientation; while for a relatively stronger shock, void collapses fastest in the <110> orientation. The dislocation nucleation position is strongly depended on the impacting crystallographic orientation. A theory based on resolved shear stress is used to explain which slip planes the earliest-appearing dislocations prefer to nucleate on under different shock orientations.

Sign in / Sign up

Export Citation Format

Share Document