☆ 4.7 Article

A discrete-based multi-scale modeling approach for the propagation of seismic waves in soils

SOIL DYNAMICS AND EARTHQUAKE ENGINEERING (2023)

Related references

Note: Only part of the references are listed.

Article Computer Science, Interdisciplinary Applications

DEM models using direct and indirect shape descriptions for Toyoura sand along monotonous loading paths

T. Mohamed et al.

Summary: Two different DEM models were proposed to quantitatively simulate the macroscopic response of Toyoura sand under various loading conditions. The first model used spherical particles with additional rolling resistance stiffness, while the second model used 3D polyhedrons defined from 2D micrographs of Toyoura particles. Both models were calibrated using triaxial compression tests, showing similar predictive abilities but the polyhedral approach was easier to calibrate and offered a more precise description of particle shapes and initial fabric anisotropy.

COMPUTERS AND GEOTECHNICS (2022)

Add to Collection

Article Engineering, Geological

Multi-scale simulation of wave propagation and liquefaction in a one-dimensional soil column: hybrid DEM and finite-difference procedure

Matthew R. Kuhn

Summary: The paper presents a multi-phase, multi-scale rational method for modeling and predicting free-field wave propagation and the weakening and liquefaction of near-surface soils using the discrete element method (DEM). The method involves analyzing various conditions and phenomena related to seismic shaking and post-shaking consolidation period, as well as refining the DEM for realistically simulating soil behavior and solving propagation and liquefaction factors.

ACTA GEOTECHNICA (2022)

Add to Collection

Article Engineering, Geological

Effects of prior non-liquefying undrained cyclic loading on sand liquefaction resistance via discrete element analysis

Xiaoli Xie et al.

Summary: Prior earthquakes have significant impacts on the liquefaction resistance of sandy soils. Non-liquefying loading can either increase or decrease the liquefaction resistance, depending on the cyclic stress ratio and excess pore pressure ratio. Specimens previously loaded under larger cyclic stress ratios exhibited lower liquefaction resistance after reconsolidation, while those reconsolidated from smaller cyclic stress ratios showed higher liquefaction resistance. Sand liquefaction resistance is correlated with initial anisotropic degree and mechanical average coordination number.

SOIL DYNAMICS AND EARTHQUAKE ENGINEERING (2022)

Add to Collection

Article Engineering, Geological

Liquefaction resistance of christchurch sandy soils from direct simple shear tests

Claudio Cappellaro et al.

Summary: The study focuses on investigating the liquefaction resistance of sandy soils from Christchurch, New Zealand, specifically looking at the combined effects of soil density and fines content. Differences were observed between two host sands in terms of sensitivity to cyclic liquefaction resistance and the effects of fines addition on liquefaction resistances. The results showed reasonably consistent liquefaction resistances relative to estimates from empirical CPT-based liquefaction triggering relationships for soils containing up to 30% fines.

SOIL DYNAMICS AND EARTHQUAKE ENGINEERING (2021)

Add to Collection

Article Computer Science, Interdisciplinary Applications

Formulation, validation and application of a practice-oriented two-surface plasticity sand model

Zhao Cheng et al.

Summary: This study successfully improved the DM04 model to achieve good matches between simulated results and experimental data. The new model, implemented in FLAC3D, has internally calibrated parameters suitable for SCRF sand, overcoming disturbances encountered during sampling preparation in laboratories.

COMPUTERS AND GEOTECHNICS (2021)

Add to Collection

Article Computer Science, Interdisciplinary Applications

Precision and computational costs of Level Set-Discrete Element Method (LS-DEM) with respect to DEM

J. Duriez et al.

Summary: The LS-DEM method extends DEM for arbitrary grain shapes by storing distance-to-surface values on a grid and considering boundary nodes, affecting precision and computational costs. For triaxial compression of spherical particles, LS-DEM requires smaller grid spacing and more boundary nodes to approach reference results, resulting in a significant increase in computational costs. Simple OpenMP parallel simulations can reduce the time cost increase in LS-DEM.

COMPUTERS AND GEOTECHNICS (2021)

Add to Collection

Article Engineering, Geological

Simulation of undrained quasi-saturated soil with pore pressure measurements using a discrete element (DEM) algorithm

Matthew R. Kuhn et al.

SOILS AND FOUNDATIONS (2020)

Add to Collection

Article Computer Science, Interdisciplinary Applications

DEM analysis of monotonic and cyclic behaviors of sand based on critical state soil mechanics framework

Xiaoqiang Gu et al.

COMPUTERS AND GEOTECHNICS (2020)

Add to Collection

Article Engineering, Geological

Quantitative prediction of discrete element models on complex loading paths

Luc Sibille et al.

INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS (2019)

Add to Collection

Article Mechanics

Definition and symmetry of averaged stress tensor in granular media and its 3D DEM inspection under static and dynamic conditions

Beichuan Yan et al.

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES (2019)

Add to Collection

Article Engineering, Geological

Subtleties in discrete-element modelling of wet granular soils

J. Duriez et al.

GEOTECHNIQUE (2017)

Add to Collection

Article Engineering, Multidisciplinary

A nonlocal multiscale discrete-continuum model for predicting mechanical behavior of granular materials

Yang Liu et al.

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING (2016)

Add to Collection

Article Engineering, Geological

Effect of saturation on liquefaction resistance of iron ore fines and two sandy soils

Hailong Wang et al.

SOILS AND FOUNDATIONS (2016)

Add to Collection

Article Engineering, Geological

Drained Instability in Loose Granular Material

Quanyang Dong et al.

INTERNATIONAL JOURNAL OF GEOMECHANICS (2016)

Add to Collection

Article Computer Science, Interdisciplinary Applications

Constitutive modelling of cohesionless soils and interfaces with various internal states: An elasto-plastic approach

J. Duriez et al.

COMPUTERS AND GEOTECHNICS (2015)

Add to Collection

Article Geochemistry & Geophysics

FEM x DEM modelling of cohesive granular materials: Numerical homogenisation and multi-scale simulations

Trung Kien Nguyen et al.

ACTA GEOPHYSICA (2014)

Add to Collection

Article Engineering, Multidisciplinary

A coupled FEM/DEM approach for hierarchical multiscale modelling of granular media

Ning Guo et al.

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING (2014)

Add to Collection

Article Engineering, Geological

A discrete modeling-based constitutive relation for infilled rock joints

J. Duriez et al.

INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES (2011)

Add to Collection

Article Engineering, Geological

Propagation of seismic waves through liquefied soils

Mahdi Taiebat et al.

SOIL DYNAMICS AND EARTHQUAKE ENGINEERING (2010)

Add to Collection

Article Multidisciplinary Sciences

A constitutive law for dense granular flows

Pierre Jop et al.

NATURE (2006)

Add to Collection

Article Physics, Fluids & Plasmas

Rheophysics of dense granular materials: Discrete simulation of plane shear flows

F da Cruz et al.

PHYSICAL REVIEW E (2005)

Add to Collection

Article Materials Science, Multidisciplinary

About the numerical simulation of the dynamics of granular media and the definition of the mean stress tensor

G de Saxcé et al.

MECHANICS OF MATERIALS (2004)

Add to Collection

Article Engineering, Mechanical

Sand plasticity model accounting for inherent fabric anisotrophy

YF Dafalias et al.

JOURNAL OF ENGINEERING MECHANICS (2004)

Add to Collection

Article Engineering, Mechanical

Simple plasticity sand model accounting for fabric change effects

YF Dafalias et al.

JOURNAL OF ENGINEERING MECHANICS (2004)

Add to Collection

Article Mechanics

Discussion on The asymmetry of stress in granular media by J.P. Bardet and I. Vardoulakis - [Int. J. Solids and Structures, Vol. 38, pp. 353-367 (2001)]

K Bagi

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES (2003)

Add to Collection

Article Engineering, Multidisciplinary

Multi-scale constitutive modelling of heterogeneous materials with a gradient-enhanced computational homogenization scheme

V Kouznetsova et al.

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING (2002)

Add to Collection

© Peeref 2019-2024. All rights reserved.