Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/7609
Title: Feasible packing of granular materials in discrete-element modelling of cone-penetration testing
Authors: Ecemiş, Nurhan
Bakunowicz, Paulina
Keywords: Cone-penetration test
Coordination number
Granular material
Triaxial test
Porosity
Issue Date: Jul-2018
Publisher: Taylor and Francis Ltd.
Source: Ecemiş, N., AND Bakunowicz, P. (2018). Feasible packing of granular materials in discrete-element modelling of cone-penetration testing. Geomechanics and Geoengineering, 13(3), 198-2016. doi:10.1080/17486025.2018.1435912
Abstract: This paper explores how the discrete-element method (DEM) was found to play an increasingly important role in cone penetration test (CPT) where continuum-mechanics-based analysis tools are insufficient. We investigated several crucial features of CPT simulations in the two-dimensional DEM. First, the microparameters (stiffness and friction) of discrete material tailored to mimic clean, saturated sand, which is used in cone-penetration tests, were calibrated by curve-fitting drained triaxial tests. Then, three series of cone-penetration simulations were conducted to explore (1) top boundary conditions, (2) reasonable size of discrete particles at different initial porosities, and (3) limit initial porosity of the model for a balance between accurate representation and computational efficiency. Further, we compared the cone-penetration resistance obtained in the laboratory and numerical simulations for the range of relative densities.
URI: https://doi.org/10.1080/17486025.2018.1435912
https://hdl.handle.net/11147/7609
ISSN: 1748-6025
1748-6025
Appears in Collections:Civil Engineering / İnşaat Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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