The objective of this project is the development of a multi-scale simulation tool for designing thermo-mechanical processes to achieve control of microstructure-sensitive properties in materials used in applications of interest to the U.S. Army. As a part of continuing research effort, developments in the year 2004-05 are presented. An efficient large strain homogenization tool has been develop...

: optical separate spatial dark and bright soliton pairs in steady-state case in one dimension, for a series circuit consisting of two-photon photorefractive (pr) crystal are investigated. each crystal can be supported the spatial soliton, and at least one must be photovoltaic. the two solitons are known collectively as separate spatial soliton pairs with dark–dark, bright–dark and bright–brigh...

To management the structure, mechanical and operational properties of high-strength cast aluminum alloy АМ4.5Кд (ВАЛ10), work uses a modification method based on principle structural inheritance, using rapidly cooled (Vcool. ≥ 10^5 °С/s) fine-crystal ligatures AlTi5 AlZr10, as well chemical composition base with nanoscale size intermetallics Alα crystals. Studies have shown that introduction fi...

This review discusses the attempts that have been made by geologists to numerically simulate the evolution of microstructures in rocks. The strengths and weaknesses of the differing techniques are compared and equivalent materials science results are included. In particular we focus on the application of techniques that have been used to predict texture development, grain boundary geometries, d...

the study of nucleation mechanism of new grains during severe plastic deformation of magnesium alloys is of great importance to control the characteristics of final microstructures.  to investigate the role of discontinuous recrystallization, a wrought az31 magnesium alloy was deformed by accumulative back extrusion process at 330 °c.  the obtained microstructures were studied using optical and...

The capability of high-resolution modeling crystals subjected to large plastic strain is essential in predicting many important phenomena occurring polycrystalline materials, such as microstructure, deformation localization and in-grain texture evolution. However, due the heterogeneity polycrystals, simulation mesh gets distorted during deformation. This distortion deteriorates accuracy results...