Geotechnical/Materials Graduate Seminar Series
Friday, February 17th
9AM - 10AM
NH W213 and PKI 160
Title: Advances in Imaging and Modeling Granular Microstructures
Recent research on granular fluids and porous solids showcases the potential for X-ray computed tomography (XCT) and advanced computer simulations to capture complex material behavior. XCT is an effective way to image microstructure of foamed cement based materials to measure the distribution of air bubbles. The 3D image files from XCT experiments have been used as input files for finite element model (FEM) for solids and discrete element model (DEM) for fluid simulations. The work has advanced our understanding of granular materials for 3D printing of concrete structures.
Speaker: Prof. David A. Lange
David A. Lange joined CIVE at UNL as an adjunct professor this semester. He is Professor Emeritus of CEE at the University of Illinois at Urbana-Champaign, Urbana, IL. Lange is a Fellow of both the American Concrete Institute (ACI) the American Ceramic Society (ACerS), and he served as ACI President in 2018-19. Lange’s research career spans over 30 years, touching on many topics related to concrete microstructure and properties. His papers in ACI journals were recognized with the ACI Wason Medal for Most Meritorious Paper in 2003, 2018, and 2020. Lange holds degrees from Northwestern University (PhD, 1991), Wichita State University (MBA, 1984), and Valparaiso University (BSCE, 1981).