Title:

Bridging Scales in Nano and Micromechanics of Materials

Speaker:

Dr. Huck Beng Chew

Affiliation:

University of Illinois Urbana-Champaign

When:

Thursday, October 27, 2022 at 11:00:00 AM   Add to Calendar

Where:

MRDC Building, Room 4211

Host:

Shuman Xia
shuman.xia@me.gatech.edu

Abstract

The advancement of computational capabilities and increasing accuracy of multiscale modeling tools is rapidly improving our ability to understand and predict material deformation, fracture, and failure across various length- and time-scales. However, the bridging of scales between different simulation models or between models and experiments remains a major challenge of multiscale materials modeling. In this seminar, I will highlight some of our recent efforts to obtain continuum-based insights into nanoscale and microscale phenomena at the lower length-scales, and to construct mechanistic models explaining material physics or physical phenomena occurring at higher length-scales. The first part of my presentation focuses on the novel atomistic properties of interfaces in low-dimensional materials, polymeric nanocomposites, as well as nanocrystalline metals. The second part of my presentation highlights recent advances in the micromechanics modeling of material fracture and failure, especially in response to rapid developments in additive manufacturing technologies. Finally, I will discuss how the integration of machine learning in mechanics of materials is advancing our ability to bridge across scales.

Biography

Huck Beng Chew received his Ph.D. in 2007 under a President Graduate Fellowship from the National University of Singapore, and joined Brown University as a post-doc and later, as a Research Assistant Professor. In 2011 he joined the Department of Aerospace Engineering at the University of Illinois at Urbana-Champaign as an Assistant Professor, and he is currently an Associate Professor in the department since 2018. Huck Beng received the Dean’s Award for Excellence in Research in 2017. He is a Fellow of the Institute of Mechanical Engineers, and is a registered Chartered Engineer. He served as chair of the ASME Fracture and Failure Mechanics technical committee, and is currently on the ASME Materials Division Executive Committee.