Bulletin of the American Physical Society
APS March Meeting 2010
Volume 55, Number 2
Monday–Friday, March 15–19, 2010; Portland, Oregon
Session J30: Focus Session: High Pressure II: Equations of State
11:15 AM–1:51 PM,
Tuesday, March 16, 2010
Sponsoring Units: DCOMP GSCCM
Chair: Ramon Ravelo, University of Texas at El Paso
Abstract ID: BAPS.2010.MAR.J30.11
Abstract: J30.00011 : Molecular dynamics simulation of dynamic response of beryllium*
1:39 PM–1:51 PM
Preview Abstract Abstract
(Sandia National Laboratories)
The response of beryllium to dynamic loading has been extensively studied, both experimentally and theoretically, due to its importance in several technological areas. Compared to other metals, it is quite challenging to accurately represent the various anomalous behaviors of beryllium using classical interatomic potentials. A new parameterization of the MEAM interatomic potential has been obtained, which reproduces ambient elastic and lattice constants, the melting temperature, and the static compression curve up to 200 GPa, and is free of obvious pathologies. Hugoniostat and direct molecular dynamics simulations using this parameterization, as well as one due to Dremov et al. have been used to predict the dynamic response of HCP beryllium up to and including melting.
*Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94AL85000.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2010.MAR.J30.11
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