Dr. Ozgun Numanoglu is a civil engineer, specializing in computational geomechanics, constitutive modeling of materials, and numerical modeling, and simulation of infrastructure and geosystems.
Dr. Numanoglu's experience includes static and seismic site characterization through field testing, assessment of laboratory test results on the static and seismic response of soils, and analysis of seismic response of soil materials and soil-structure interaction, including seismic compression of soils under dry/drained conditions, liquefaction-induced settlements and lateral spreading. He conducts seismic site response analyses and develops multi-dimensional numerical models of geosystems and soil-structure systems under both static and dynamic loading conditions for a given drainage, boundary, and loading conditions. His work also extends to post-earthquake reconnaissance and the analysis and design of transportation-related geosystems, such as retaining walls, slopes, bridge embankments, and foundations.
Ozgun’s Ph.D. dissertation focused on developing a three-dimensional constitutive model for seismic applications (I-soil) and its implementation in LS-DYNA. He utilized this model to investigate seismic settlements in saturated dense sands underlying nuclear power plants, considering multi-directional earthquake loading and partially drained conditions. The I-soil model has since been applied in three Ph.D. dissertations and four M.Sc. theses, addressing topics including liquefaction modeling, the seismic response of concrete-faced rockfill dams, nuclear power plants, underground structures, and buried reservoirs.
Additionally, Dr. Numanoglu is a contributor to the development of DEEPSOIL, a widely used one-dimensional seismic site response analysis program. He is also among the developers of MASTODON, a nonlinear dynamic finite element analysis code created for Idaho National Laboratory.
Dr. Numanoglu’s extensive expertise and implementations have contributed to the field of geotechnical earthquake engineering, particularly in seismic response analysis and numerical modeling.