The Ohio State University

Abstract:

Complex and hierarchical nanodimensioned and nanostructured materials offer many unique functions that are changing the concepts of engineering design in numerous application areas. An exciting advancement in products prototyping and maturation in the past few years is the direct simulation in detail of the mechanisms, which govern the responses of the nanomaterials, becoming possible with advanced modeling methods and the computing power available today. However, it is also recognized by scientists and engineers that fundamental understanding of the behaviors of nanoscale materials will not be addressed by simple extensions of current theoretical methods that are focused on either atomic or macro scales, but it will require bridging the gap between these scales with new concepts, new modeling frameworks, and new simulation schemes. In recent years, various modeling and simulation approaches were employed by researchers to study the structures of molecular assemblies, properties at materials interfaces, mechanical interactions between nanomaterials, behaviors of nanocomposites, and functions of nanoelectronics and nanophotonics. Although many promising progresses in computation methodologies and modeling approaches have enabled detailed studies of collective and cooperative materials phenomena at nanoscale, significant challenges in theory and numerical algorithm developments are yet to be overcome.

In this presentation, advance of nanoscience and nanotechnologies, techniques to manipulate nanomaterials, and recent efforts of computational modeling of nanoscale materials will be reviewed. Successes will be highlighted and remaining challenges identified. General issues existing in the computational modeling community will be discussed.

Bio:

Dr. Eliot Fang is the Deputy and Technical Assistant to the Vice President of Science & Technology and Research Foundations at Sandia National Laboratories. He received his B.S. degree from the National Central University in Taiwan and M.S. and Ph.D. degrees from the University of California at Santa Barbara, all in mechanical engineering. Dr. Fang's research focus on applying multiscale material models and high performance computing to elucidate mechanisms of material behaviors and to predict material properties at various length scales and in different environments. He has over 60 publications and 50 invited presentations reporting his technical contributions to materials modeling and simulation. Dr. Fang is a Fellow of the American Society of Mechanical Engineers, and a recipient of the 2006 Asian American Engineer of the Year Award.