The impact of mesh structural design on nonlinear numerical simulation of geo‐structure: A seismic analysis

Namdar, Abdoullah

doi:10.1002/mdp2.195

Cited by 2 publications

(2 citation statements)

References 25 publications

(25 reference statements)

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“…Several numerical methods can be used to calculate the stress-strain state of a structure: boundary elements, finite volumes, finite differences, and the finite-element method, among others (Haftka and Malkus, 1981;Namdar, 2020;Osipov et al, 2018;Otálvaro and Nanclares, 2009). This study uses the finite-element method, which, conceptually, is the breakdown of a continuous physical element into a discrete number of parts or elements that are connected by a number of points called nodes.…”

Section: Introductionmentioning

confidence: 99%

Overview of the Constitutive Model and Numerical Calibration by FEM to Compute Bearing Capacity and Embankment-Core Deformability

et al. 2021

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Numerical modeling is a powerful tool to determine the stress-strain relationships of structures. However, for a reliable application, physical and mathematical models must be calibrated and validated. This paper presents an overview of numerical calibration through the finite element method and plate-load tests in an embankment. Additionally, an analysis of the constitutive models used in soils is performed, and the elastic-plastic constitutive model of Mohr-Coulomb was selected since it is the best suited for this study. The results from three test areas within a refinery project that the Cuban government undertook in the province of Cienfuegos are used. The numerical model used in this study was calibrated by means of the error theory and the non-parametric hypothesis tests from Mann-Whitney U. From the practical point of view, this study gives two procedures to calibrate the numerical model with experimental results.

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Section: Introductionmentioning

confidence: 99%

Overview of the Constitutive Model and Numerical Calibration by FEM to Compute Bearing Capacity and Embankment-Core Deformability

et al. 2021

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“…The seismic response of the embankment subjected to seismic loading was investigated 2–6 through analysis of the effect of mechanical properties of the soil on displacements of embankment‐subsoil, 2 through simulation nonlinear displacement of cohesionless soil subjected to dynamic loading under laboratory condition, 3,4,6 and through assessment of nonlinear displacement of the embankment‐subsoil model impact of mesh structural design on nonlinear numerical simulation of geo‐structure, which was reported to improve quality of nonlinear displacement assessment, 5 and there is no report about the influence of embankment model geometry on the nonlinear displacement of the embankment model in either laboratory experimental results or numerical simulation outcome.…”

Section: Introductionmentioning

confidence: 99%

Design geometry of the embankment for minimize nonlinear displacement

Namdar

2020

Mat Design & Process Comms

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The nonlinear displacement on an embankment occurs owing to nonlinear dynamic loadings, design unsuitable geometry for a geo‐structure, and using inhomogeneous construction materials for construct subsoil or embankment. In this study, the embankment was modeled with three types of geometries and installed on one type of subsoil. The cross‐section of all three models has equal dimensions, and it selected from that was reported in the literature, and the length of 24, 48, and 72 m were designed for the embankment‐subsoil model. The single type soil was used for modeling embankment and subsoil. The seismic load was applied to the model for assessment nonlinear displacement and vibration mechanism of the embankment‐subsoil model. To assess the developed nonlinear displacement, statistical model was applied on the results of the numerical simulation. The results of the statistical model reveal the R2 and root‐mean‐square error (RMSE) support selection suitable for the geometry of the embankment‐subsoil. On the other hand, displacement mechanism associates with the vibration mechanism of the model. With attention to geomorphology of a territory that governs embankment‐subsoil model geometry, the appropriate recognition of the impact of model geometry on differential displacement of the embankment‐subsoil leads to design an embankment with higher seismic resistance.

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The impact of mesh structural design on nonlinear numerical simulation of geo‐structure: A seismic analysis

Cited by 2 publications

References 25 publications

Overview of the Constitutive Model and Numerical Calibration by FEM to Compute Bearing Capacity and Embankment-Core Deformability

Overview of the Constitutive Model and Numerical Calibration by FEM to Compute Bearing Capacity and Embankment-Core Deformability

Design geometry of the embankment for minimize nonlinear displacement

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