Molecular Dynamics Modeling of Shock Wave Propagation in fcc-Al, α-Fe2O3, and their Interfaces

2006 ◽  
Author(s):  
Vikas Tomar
Keyword(s):  
Shock Wave ◽  
Molecular Dynamics ◽  
Wave Propagation ◽  
Shock Wave Propagation ◽  
Dynamics Modeling ◽  
Molecular Dynamics Modeling

Molecular dynamics studies of shock wave propagation in argon by using higher order symplectic integrators

Shock Waves ◽  
2005 ◽  
pp. 1199-1204
Author(s):  
Y. Kohno ◽  
T. Yashima ◽  
O. Takahashi ◽  
K. Saito ◽  
T. Saito ◽  
...  
Keyword(s):  
Shock Wave ◽  
Molecular Dynamics ◽  
Wave Propagation ◽  
Higher Order ◽  
Shock Wave Propagation ◽  
Symplectic Integrators

Molecular Dynamics Simulation of Shock Wave Propagation through RDX Crystal Lattice

2010 ◽  
Vol 28 (sup1) ◽  
pp. 78-91
Author(s):  
A. A. Selezenev ◽  
A. Yu. Aleynikov ◽  
N. S. Ganchuk ◽  
S. N. Ganchuk ◽  
P. V. Ermakov
Keyword(s):  
Shock Wave ◽  
Molecular Dynamics ◽  
Wave Propagation ◽  
Molecular Dynamics Simulation ◽  
Crystal Lattice ◽  
Shock Wave Propagation ◽  
Dynamics Simulation

Molecular Dynamics Simulations of Shock Propagation and Spallation in Amorphous Polymers

2021 ◽  
pp. 1-28
Author(s):  
M. A. N. Dewapriya ◽  
Ronald Miller
Keyword(s):  
Shock Wave ◽  
Molecular Dynamics ◽  
Wave Propagation ◽  
Indirect Method ◽  
Direct Method ◽  
Spall Strength ◽  
Amorphous Polymers ◽  
Shock Wave Propagation ◽  
Surface Velocity ◽  
Shock Propagation

Abstract We conducted large-scale molecular dynamics (MD) simulations of shock wave propagation and spallation in amorphous polyurethane and polyurea. First, we computed the shock Hugoniot of the polymers using the multiscale shock technique and compared them with available experimental data to establish the upper limit of the shock pressure that can be accurately modeled using a non-reactive interatomic force field. Subsequently, we simulated shock wave propagation in the polymers, varying the shock particle velocity from 0.125 km/s to 2 km/s. A remarkable similarity in the shock behavior of polyurethane and polyurea was observed. The spall strength of each sample was computed by two methods: (a) the indirect method (based on the free surface velocity history)—accessible in experiments, and (b) a direct method (based on the atomic stresses in the region of spallation)—accessible only through MD. The results reveal that the tensile strength computed from the indirect method is consistently smaller than the value obtained from the direct method. Moreover, the strength computed from the indirect method shows a noticeable agreement with the fracture nucleation stress. Our results provide novel molecular-level insights into the spallation mechanisms of amorphous polymers, which could facilitate the design of polymers for structural barrier applications.

Phenomenological analysis of shock-wave propagation in weakly ionized plasmas

AIAA Journal ◽  
1998 ◽  
Vol 36 ◽  
pp. 816-822
Author(s):  
Igor V. Adamovich ◽  
Vish V. Subramaniam ◽  
J. W. Rich ◽  
Sergey O. Macheret
Keyword(s):  
Shock Wave ◽  
Wave Propagation ◽  
Phenomenological Analysis ◽  
Shock Wave Propagation ◽  
Ionized Plasmas ◽  
Weakly Ionized

scholarly journals Observation of the shock wave propagation induced by a high-power laser irradiation into an epoxy material

2013 ◽  
Vol 46 (23) ◽  
pp. 235501 ◽  
Author(s):  
Romain Ecault ◽  
Laurent Berthe ◽  
Michel Boustie ◽  
Fabienne Touchard ◽  
Emilien Lescoute ◽  
...  
Keyword(s):  
Shock Wave ◽  
Wave Propagation ◽  
Laser Irradiation ◽  
High Power ◽  
Shock Wave Propagation ◽  
High Power Laser ◽  
Power Laser ◽  
Epoxy Material
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