Yannis F. Dafalias, Ph.D., F.EMI, F.ASCE, distinguished professor in the civil and environmental engineering department at the University of California at Davis, has been elected a Fellow by the ASCE Board of Direction.
Dafalias began his career at UC Davis in 1975 as an assistant professor. In 1987 he was elected professor of mechanics in the Department of Mathematical and Physical Sciences of the National Technical University of Athens, in Greece, eventually becoming an emeritus professor. He has since continued on the faculty at UC Davis.
His main research focuses on the development and implementation of constitutive models for metals, sands, clays, concrete, polymers, biomaterials, and the like. The concepts he has generated have developed new aspects of theoretical formulation used in the fields of solid and soil mechanics, along with related applications, and are published in recent textbooks on plasticity. Recent research topics include turbulence in fluid dynamics and biomechanics, and several of his students are faculty members at various universities worldwide.
Dafalias’ past and present memberships include ASCE, the Hellenic Society of Civil Engineers, the American Academy of Mechanics, the Hellenic Society of Theoretical and Applied Mechanics, the Inelasticity Committee of ASCE’s Journal of Engineering Mechanics, and the Education Committee of the Technical Chamber of Greece. He is a Fellow of ASCE’s Engineering Mechanics Institute and also serves on the Governors Nomination Committee. In addition, he has been a consultant with the USACE, Waterways Experiment Station, Vicksburg, among many other companies and institutions around the world. Dafalias has been a professionally registered engineer in Greece since 1969.
He is the author of several articles in refereed journals with a high citation record, and for his accomplishments he has also received several medals and awards. The most notable among them are the 2012 Nathan M. Newmark Medal, the 2012 Norman Medal, and the 1987 Walter L. Huber Civil Engineering Research Prize, all from ASCE.
Dafalias received his diploma of civil engineering in 1969 from NTUA, his MS in engineering mechanics in 1971 from Brown University under W. Prager, and his Ph.D. in engineering sciences in 1975 from UC Berkeley under E. P. Popov.