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Title: Combining dual domain material point method with molecular dynamics for thermodynamic nonequilibriums

Journal Article · · Journal of Computational Physics

The dual domain material point method (DDMP) combined with molecular dynamics (MD) is used to simulate a material undergoing a large deformation with a high strain rate. In the simulation, the continuum scale equation of motion is solved using DDMP, while the stresses required at the material points are obtained by performing MD simulations in small domains surrounding the material points following the entire history of the material deformation without reinitialization of the MD systems; therefore the history dependence, a common feature for thermodynamically nonequilibrium systems, can be tracked accurately. Two algorithms are introduced to avoid distortion of the MD domains and to ensure consistence in the energy density between the MD and macroscopic calculations. As an example, a hyper-velocity impact problem is simulated. The results of the combined DDMP-MD calculations are then compared to a pure MD simulation. The method of the combined simulation is applicable to macroscopic systems, although the size of the simulation domain is only a few hundred nanometers in this example because of the limitation of the pure MD simulation.

Research Organization:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA), Office of Defense Nuclear Nonproliferation; USDOE/USDOD Joint Munitions Technology Development Program (JMP); USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR)
Grant/Contract Number:
AC52-06NA25396
OSTI ID:
1467272
Report Number(s):
LA-UR-17-29537
Journal Information:
Journal of Computational Physics, Vol. 374; ISSN 0021-9991
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 7 works
Citation information provided by
Web of Science

References (25)

Multiscale modeling of the dynamics of solids at finite temperature journal July 2005
Heterogeneous multiscale method for the modeling of complex fluids and micro-fluidics journal March 2005
A multiscale coupling method for the modeling of dynamics of solids with application to brittle cracks journal May 2010
The heterogeneous multiscale method journal April 2012
Adaptive spacetime method using Riemann jump conditions for coupled atomistic–continuum dynamics journal March 2010
Characteristics of debris clouds produced by hypervelocity impact of aluminum spheres with thin aluminum plates journal January 1993
On shock driven jetting of liquid from non-sinusoidal surfaces into a vacuum journal November 2015
Transient impact response of three polymers journal September 1998
Effects of nonuniform segment deformation on the constitutive relation of polymeric solids journal November 2002
Modeling plate impact response of particle–polymer composite journal January 2003
The Statistical Mechanical Theory of Transport Processes. IV. The Equations of Hydrodynamics journal June 1950
Interspecies Stress in Momentum Equations for Dense Binary Particulate Systems journal July 2006
A particle method for history-dependent materials journal September 1994
A convected particle domain interpolation technique to extend applicability of the material point method for problems involving massive deformations journal March 2011
Material point method enhanced by modified gradient of shape function journal July 2011
Second-order convected particle domain interpolation (CPDI2) with enrichment for weak discontinuities at material interfaces: ENRICHED SECOND-ORDER CONVECTED PARTICLE DOMAIN INTERPOLATION (CPDI2) journal July 2013
Material point methods applied to one-dimensional shock waves and dual domain material point method with sub-points journal November 2016
Shock waves simulated using the dual domain material point method combined with molecular dynamics journal April 2017
Embedded-atom-method functions for the fcc metals Cu, Ag, Au, Ni, Pd, Pt, and their alloys journal June 1986
A Unified Interpretation of Stress in Molecular Systems journal May 2010
The non-uniqueness of the atomistic stress tensor and its relationship to the generalized Beltrami representation journal August 2016
Atomistic simulation of ideal shear strength, point defects, and screw dislocations in bcc transition metals: Mo as a prototype journal September 1996
Amorphous structure of grain boundaries and grain junctions in nanocrystalline silicon by molecular-dynamics simulation journal March 1997
A viscoelastic model for dense granular flows journal November 1997
On consistent definitions of momentum and energy fluxes for molecular dynamics models with multi-body interatomic potentials journal December 2014

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