Nabi Kartal Toker

E-mail

toker@metu.edu.tr

Department

Department of Civil Engineering

ORCID

0000-0001-8858-0510

Scopus Author ID

6602651695

Web of Science Researcher ID

ABB-8859-2020

Application and comparison of multistage triaxial compression test procedures on reconstituted Ankara clay Vakilinezhad, Amirahmad; Toker, Nabi Kartal (2024-07-02) The ability to conduct conventional triaxial compression tests on multiple identical specimens is restricted by available sample quantity, sample homogeneity, as well as testing duration. Multistage triaxial testing is an ...
Numerical Determination of Unsaturated Hydraulic Conductivity From Time-Series Outflow Data Kenanoğlu, M.B.; Toker, Nabi Kartal (2024-01-01) In this study, the focus is placed on addressing the challenge posed by the time-consuming nature of experimental methods employed for the determination of the hydraulic conductivity function (HCF) in unsaturated soil. Ins...
Microstructure-based estimation of unsaturated shear strength from simple evaporation test Kenanoğlu, M.B.; Toker, Nabi Kartal (2023-08-01) The effect of microstructure on the hydromechanical behavior of unsaturated soils is an issue that is frequently addressed in literature. A simple procedure is proposed in this study to characterize the soil microstructure...
Doygun olmayan zeminlerin bağlaşık hidromekanik davranışlarını hidrolik histerezisi katarak açıklayan bir bünye modeli: : UNSATURK 1.0 Eyüpgiller, Mustafa Mert; Kenanoğlu, Melih Birhan; Ülker, Mehmet Barış Can; Toker, Nabi Kartal (2022-09-30) Bu çalışmada doygun olmayan zeminler (DOZ) için mekanik ve hidrolik etkilerin birlikte elealındığı bağlaşık bir teorik bünye modeli geliştirilmiştir. Model, DOZ su tutma davranışıylabirlikte, izotopik sıkışmayla oluşan boş...
A Case Study: Dynamic Analyses of Barrette Foundations under a Pipe Rack in a High Seismicity Region Akbaş, Burak; Kanun, Onur; Unutmaz, Berna; Gülerce, Zeynep; Toker, Nabi Kartal (2022-09-09) The need for transportation of fluids is increasing in recent years, calling for morecomplex analyses and design of the related facilities such as tanks, pumping stations, piperacks, etc. If these are located in a high sei...
A constitutive model for hyromechanically coupled behavior of unsaturated soils with hydraulic hysteresis Eyüpgiller, Mustafa Mert; Kenanoğlu, Melih Birhan; Ülker, Mehmet Barış Can; Toker, Nabi Kartal (2021-07-28) There are several constitutive models developed for understanding coupled hydromechanicalbehavior of three phase medium of unsaturated soils as well as models for explaining hydraulic hysteresis inwater retention. However,...
Simulation of hysteresis in soil-water retention with a correlation between the invading pressure to the governing effective flow area Sattari, Amir Shoarian; Siebelist, Marlena; Toker, Nabi Kartal; Wuttke, Frank (Springer Science and Business Media LLC, 2020-03-23) In order to determine the soil-water retention (SWR) behavior of a particulate medium, the invading phase pressure in the inter-particle level is correlated to the governing effective pore area in the wetting and drying pa...
A New Isotropic Specimen Preparation Method from Slurry for both Saturated and Unsaturated Triaxial Testing of a Low-Plasticity Silt Ahmadi-Naghadeh, Reza; Toker, Nabi Kartal (ASTM International, 2019-07-01) A new procedure for the preparation of low-plasticity silt specimens that are isotropically reconstituted from slurry is developed for use in both saturated and unsaturated soil testing. Spatial variations of the water con...
Characterization of transverse anisotropy in Poisson’s ratio using radial deformation measurements Toker, Nabi Kartal (2019-06-26)
Characterization of transverse anisotropy in Poisson’s ratio using three-point radial deformation measurements Toker, Nabi Kartal (2019-06-26) Poisson's ratio (v) of rock specimens can be experimentally determined from radial deformation measurements in an unconfined compression test. This is commonly achieved by mounting a compressometer with diametric or perime...

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