Ill Ryu

Ill Ryu is an Assistant Professor in the Department of Mechanical Engineering at The University of Texas at Dallas, part of the Erik Jonsson School of Engineering and Computer Science. His research lies at the intersection of computational mechanics, materials science, and energy systems, with a focus on deformation and fracture in nanostructured materials.

His educational background includes a Ph.D. and M.S. in Materials Science and Engineering from Stanford University (2013), with a minor in Mechanical Engineering, and earlier degrees (B.S. and M.S.) from Seoul National University (2005).

• Ph.D., Materials Science and Engineering (minor in Mechanical Engineering), Stanford University, 2013
• M.S., Materials Science and Engineering, Stanford University, 2013
• M.S., Materials Science and Engineering, Seoul National University, 2005
• B.S., Materials Science and Engineering, Seoul National University, 2005

Dr. Ryu's research centers on computational modeling of crystalline materials, particularly the size-dependent plasticity and fracture mechanisms in micropillars and nanostructures. He investigates mechanical behavior in energy materials such as silicon and germanium anodes in lithium-ion batteries, using multi-scale simulations and dislocation dynamics. His lab, the Computational Materials Design Lab (CMDL), develops advanced computational models to predict material responses under extreme conditions.

The recent publications reflect a strong trend in understanding mechanical degradation in battery materials, size effects in FCC and BCC metals, and the role of dislocation sources in microplasticity. Keywords across his work include computational mechanics, multi-scale modeling, fracture, plasticity, and energy materials, with sub-fields spanning lithiation-induced stress, nanowire deformation, and thin film toughening.

His scientific awards highlight early-career excellence:

• Outstanding Presentation Award by Young Researchers, ICF13 (2013)
• Best Presentation Award, Hyundai Global Top Talent Forum (2014)
• NSF Summer Institute Fellowship (2010)
• Honor Fellowship, Sinyang Cultural Foundation & Seoul National University (1998–2003)
• Grant support, Schöntal Symposium on Dislocation-based Plasticity (2016)

Dr. Ryu has mentored students and collaborators including Seok Woo Lee and has been involved in significant research projects on dislocation dynamics and battery material mechanics. He has received grant support and has presented his work extensively at international conferences. He has taught graduate courses such as Advanced Engineering Mechanics and served as a teaching assistant for courses in thin films, statistical mechanics, and microstructure at Stanford and Brown University. He is also an active peer reviewer for journals including Acta Materialia, Journal of the Mechanics and Physics of Solids, and Scripta Materialia, and has chaired conference sessions on mechanics in energy materials.

He leads the Computational Materials Design Lab (CMDL), which focuses on developing state-of-the-art computational models to simulate deformation mechanisms in advanced engineering materials across multiple length and time scales. The lab bridges chemistry and mechanics, particularly in the context of lithium-ion batteries and nanostructured materials.