Diploma in Civil Engineering from the National Technical University of Athens, Greece (NTUA, 1978), M.Sc. (1980) and Ph.D. (1982) from the School of Civil Engineering of M.I.T.. Post-graduate researcher at the Norwegian Geotech. Institute (NGI, 1984).
Presently, Professor of Geotechnical Engineering at NTUA, specialized in Soil Dynamics and Geotechnical Earthquake Engineering. Director of the Foundation Engineering Laboratory.
Author of more than 200 journal and conference papers on cyclic loading and liquefaction of soils, soil and topography effects on seismic ground motions, as well as seismic performance of foundations, retaining walls and lifelines under adverse soil conditions (liquefiable soils, active fault crossings, landslides). The published work has received more than 3000 citations (Google Scholar Dec. 1, 2020, h-index =28, i10-index=69).
He has coordinated the development of NTUA-Sand constitutive model for monotonic and cyclic loading of sands (can be downloaded from the official Itasca web site, for FLAC 2D and 3D implementation). He is co-author of ASME 2019 (chapter 11) on the seismic design of buried oil and gas pipelines.
His current research focuses on the performance based analysis and design of shallow and deep foundations in liquefiable sites, with the aid of fully coupled (effective stress, dynamic) numerical algorithms, as well as on the seismic verification of high pressure buried steel pipelines.