Shock wave propagation, plasticity, and void collapse in open-cell nanoporous Ta

2018 ◽  
Vol 20 (44) ◽  
pp. 28039-28048 ◽  
Author(s):  
J. F. Tang ◽  
J. C. Xiao ◽  
L. Deng ◽  
W. Li ◽  
X. M. Zhang ◽  
...  
Keyword(s):  
Shock Wave ◽  
Molecular Dynamics ◽  
Wave Propagation ◽  
Specific Surface ◽  
Molecular Dynamics Simulations ◽  
Surface Area ◽  
Large Scale ◽  
Open Cell ◽  
Non Equilibrium Molecular Dynamics ◽  
Dynamics Simulations

We systematically investigate the wave propagation, plasticity and void collapse, as well as the effects of porosity, specific surface area and impact velocity, in a set of open-cell nanoporous Ta, during shock compression, via performing large-scale non-equilibrium molecular dynamics simulations.

scholarly journals Surface premelting/recrystallization governing the collapse of open-cell nanoporous Cu via thermal annealing

2018 ◽  
Vol 20 (23) ◽  
pp. 16184-16192 ◽  
Author(s):  
L. Wang ◽  
X. M. Zhang ◽  
L. Deng ◽  
J. F. Tang ◽  
S. F. Xiao ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Specific Surface ◽  
Molecular Dynamics Simulations ◽  
Thermal Annealing ◽  
Large Scale ◽  
Open Cell ◽  
Surface Areas ◽  
Specific Surface Areas ◽  
Dynamics Simulations

We systematically investigate the collapse of a set of open-cell nanoporous Cu (np-Cu) materials with the same porosity and shape but different specific surface areas, during thermal annealing, by performing large-scale molecular dynamics simulations.

Plasticity induced by a shock wave: large scale molecular dynamics simulations

2004 ◽  
Vol 387-389 ◽  
pp. 262-265 ◽  
Author(s):  
D. Tanguy ◽  
M. Mareschal ◽  
T.C. Germann ◽  
B.L. Holian ◽  
P.S. Lomdahl ◽  
...  
Keyword(s):  
Shock Wave ◽  
Molecular Dynamics ◽  
Molecular Dynamics Simulations ◽  
Large Scale ◽  
Dynamics Simulations

A Molecular Dynamics Study of Thermal Conductivity in Nanocomposites via the Phonon Wave Packet Method

2009 ◽  
Author(s):  
Zhiting Tian ◽  
Sang Kim ◽  
Ying Sun ◽  
Bruce White
Keyword(s):  
Thermal Conductivity ◽  
Molecular Dynamics ◽  
Wave Packet ◽  
Molecular Dynamics Simulations ◽  
Phonon Scattering ◽  
Flow Direction ◽  
Normal Incidence ◽  
Material Interfaces ◽  
Non Equilibrium Molecular Dynamics ◽  
Dynamics Simulations

The phonon wave packet technique is used in conjunction with the molecular dynamics simulations to directly observe phonon scattering at material interfaces. The phonon transmission coefficient of nanocomposites is examined as a function of the defect size, thin film thickness, orientation of interface to the heat flow direction. To generalize the results based on phonons in a narrow frequency range and at normal incidence, the effective thermal conductivity of the same nanocomposite structure is calculated using non-equilibrium molecular dynamics simulations for model nanocomposites formed by two mass-mismatched Ar-like solids and heterogeneous Si-SiCO2 systems. The results are compared with the modified effective medium formulation for nanocomposites.

scholarly journals Large-scale molecular dynamics simulations of TiN/TiN(001) epitaxial film growth

2016 ◽  
Vol 34 (4) ◽  
pp. 041509 ◽  
Author(s):  
Daniel Edström ◽  
Davide G. Sangiovanni ◽  
Lars Hultman ◽  
Ivan Petrov ◽  
J. E. Greene ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulations ◽  
Large Scale ◽  
Epitaxial Film ◽  
Film Growth ◽  
Dynamics Simulations ◽  
Epitaxial Film Growth
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