A virtual test facility for simulating the dynamic response of materials
Michael Aivazis, William A. Goddard III, Dan Meiron, Michael Ortiz, James Pool, Joseph Shepherd
Abstract
The goal of the Caltech Center is to construct a virtual test facility (VTF): a problem solving environment for full 3D parallel simulation of the dynamic response of materials undergoing compression due to shock waves. The objective is to design a software environment that will: facilitate computation in a variety of experiments in which strong shock waves impinge on targets comprising various combinations of materials; compute the target materials' subsequent dynamic response; and validate these computations against experimental data. Successfully constructing such a facility requires modeling of the highest accuracy. We must model at atomistic scales to correctly describe the material properties of the target materials and high explosives; at intermediate (meso) scales to understand the micromechanical response of the target materials; and at continuum scales to capture properly the evolution of macroscopic effects. The article outlines such a test facility. Although it is a very simplified version of the facilities found in a shock-compression laboratory, our VTF includes all the basic features, offering a problem solving environment for validating experiments and facilitating further development of simulation capabilities.
Group Members
Aivazis, M., III, W. A. G., Meiron, D., Ortiz, M., Pool, J., & Shepherd, J. (2002). A virtual test facility for simulating the dynamic response of materials. *Computing in Science & Engineering*, *2*(2), 42-53. https://doi.org/10.1109/5992.825748