Soft or Hard? Investigating the Deformation Mechanisms of Au–Pd and Pd Nanocubes under Compression: An Experimental and Molecular Dynamics Study

2021 ◽  
Author(s):  
Juan A. de la Rosa Abad ◽  
Alejandra Londoño-Calderon ◽  
Eduardo M. Bringa ◽  
German J. Soldano ◽  
Sergio. A. Paz ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Deformation Mechanisms ◽  
Soft Or

Deformation mechanisms in nanotwinned γ-TiAl by molecular dynamics simulation

2018 ◽  
Vol 44 (18) ◽  
pp. 1489-1500 ◽  
Author(s):  
Cao Hui ◽  
Rui Zhiyuan ◽  
Chen Wenke ◽  
Feng Ruicheng ◽  
Yan Changfeng
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulation ◽  
Dynamics Simulation ◽  
Deformation Mechanisms

Molecular deformation mechanisms and mechanical properties of polymers simulated by molecular dynamics

e-Polymers ◽  
2004 ◽  
Vol 4 (1) ◽  
Author(s):  
Ricardo Simões ◽  
António M. Cunha ◽  
Witold Brostow
Keyword(s):  
Molecular Dynamics ◽  
Mechanical Response ◽  
Polymeric Materials ◽  
Spatial Arrangement ◽  
Deformation Mechanisms ◽  
Second Phase ◽  
Two Phase ◽  
Chain Slippage ◽  
The Cost ◽  
Molecular Deformation

Abstract Virtual polymeric materials were created and used in computer simulations to study their behavior under uniaxial loads. Both single-phase materials of amorphous chains and two-phase polymer liquid crystals (PLCs) have been simulated using the molecular dynamics method. This analysis enables a better understanding of the molecular deformation mechanisms in these materials. It was confirmed that chain uncoiling and chain slippage occur concurrently in the materials studied following predominantly a mechanism dependent on the spatial arrangement of the chains (such as their orientation). The presence of entanglements between chains constrains the mechanical response of the material. The presence of a rigid second phase dispersed in the flexible amorphous matrix influences the mechanical behavior and properties. The role of this phase in reinforcement is dependent on its concentration and spatial distribution. However, this is achieved with the cost of increased material brittleness, as crack formation and propagation is favored. Results of our simulations are visualized in five animations.

Deformation mechanisms in nanotwinned copper by molecular dynamics simulation

2017 ◽  
Vol 687 ◽  
pp. 343-351 ◽  
Author(s):  
Xing Zhao ◽  
Cheng Lu ◽  
Anh Kiet Tieu ◽  
Linqing Pei ◽  
Liang Zhang ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulation ◽  
Dynamics Simulation ◽  
Deformation Mechanisms
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