Dr. Wenwu Xu
Department of Mechanical Engineering, 
San Diego State University
5500 Campanile Drive
San Diego, CA 92182 USA

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Overview

Our research involves the use of state-of-the-art computational tools in the modeling and design of complex materials systems for structural and energy related applications. In this context, multiscale methods including continuum theories, atomic-scale modeling and first-principles-based simulations are applied in studies of the mechanical, thermodynamic and dynamic properties of bulk phases, surfaces and interfaces.

Multiscale Modeling of Materials

Multiscale materials modelling offers an integrated approach to modelling material behaviour across a range of scales from the electronic, atomic and microstructural up to the component level. As a result, it provides valuable new insights into complex structures and their properties, opening the way to develop new, multi-functional materials together with improved process and product designs.

We employ highly efficient multiparadigm computational algorithms and tools capable of seamlessly bridging length and time scales to enable advanced design, characterization and prediction of material properties and processes and their application into solving currently "impossible" problems.

Microstructure Characterization of Materials

Characterization of microstructural features plays a key-role in Materials Engineering and Materials Science. It serves as key evidence of microstructural modeling at multiple length scales. A myriad of advanced techniques are used at the Department of Mechanical Engineering at the San Diego State University, including X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and atomic force microscopy.

We use experimental characterization with coupling of multiscale modeling and simulations to explore the processing-structure-property relationships in structural metals and materials at the nanoscale.

 
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