Molecular Dynamic Shock Wave Studies in Solids.
Abstract
Molecular dynamics is the technique of using a computer to solve Newton's equations of motion for a number of interacting atoms. Computer programs were developed which simulated shock waves moving in three dimensional solids. The pressure, density and temperature were obtained for a range of shock velocities. The results were used to confirm the Hugoniot equations for anisotropic, particulate systems. The simulations were in good agreement with experiment for iron and rare gas solids, despite their different structures and atomic interactions. Computer simulations and shock wave experiments were well described by an equation of state developed from the Hugoniot equations. The equation of state was used to explain the general linear behavior of shock velocity with particle velocity for a variety of solids. The equation of state further predicts the onset of a thermal catastrophe at very high shock velocities.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1976
- Accession Number
- ADA032110
Entities
People
- Arthur Paskin
Organizations
- Queens College