John E. Klepeis
YOU?
Author Swipe
View article: Comparison of ablators for the polar direct drive exploding pusher platform
Comparison of ablators for the polar direct drive exploding pusher platform Open
We examine the performance of pure boron, boron carbide, high density carbon, and boron nitride ablators in the polar direct drive exploding pusher (PDXP) platform. The platform uses the polar direct drive conguration at the National Ignit…
View article: Accurate parameterization of the kinetic energy functional
Accurate parameterization of the kinetic energy functional Open
The absence of a reliable formulation of the kinetic energy density functional has hindered the development of orbital free density functional theory. Using the data-aided learning paradigm, we propose a simple prescription to accurately m…
View article: Dislocation-based strength model for high energy density conditions
Dislocation-based strength model for high energy density conditions Open
We derive a continuum-level plasticity model for polycrystalline materials in the high energy density regime, based on a single dislocation density and single mobility mechanism, with an evolution model for the dislocation density. The mod…
View article: Analytic Binary Alloy Volume–Concentration Relations and the Deviation from Zen’s Law
Analytic Binary Alloy Volume–Concentration Relations and the Deviation from Zen’s Law Open
Alloys expand or contract as concentrations change, and the resulting relationship between atomic volume and alloy content is an important property of the solid. While a well-known approximation posits that the atomic volume varies linearl…
View article: Analytic binary alloy volume-concentration relations and the deviation from Zen`s law
Analytic binary alloy volume-concentration relations and the deviation from Zen`s law Open
Alloys expand or contract as concentrations change, and the resulting relationship between atomic volume and alloy content is an important property of the solid. While a well-known approximation posits that the atomic volume varies linearl…
View article: Equations of state for ruthenium and rhodium
Equations of state for ruthenium and rhodium Open
Ru and Rh are interesting cases for comparing equations of state (EOS), because most general purpose EOS are semi-empirical, relying heavily on shock data, and none has been reported for Ru. EOS were calculated for both elements using all-…
View article: Kohn Anomaly and Phase Stability in Group VB Transition Metals
Kohn Anomaly and Phase Stability in Group VB Transition Metals Open
In the periodic table, only a few pure metals exhibit lattice or magnetic instabilities associated with Fermi surface nesting, the classical examples being α-U and Cr. Whereas α-U displays a strong Kohn anomaly in the phonon spectrum that …