4.6 Article

A spherical-harmonic-based approach to discrete element modeling of 3D irregular particles

Related references

Note: Only part of the references are listed.
Article Engineering, Multidisciplinary

An energy-conserving contact theory for discrete element modelling of arbitrarily shaped particles: Basic framework and general contact model

Y. T. Feng

Summary: The first paper of this series establishes a unified theoretical framework for developing energy-conserving normal contact models in the discrete element method. The framework is based on the requirement of conserving potential energy during elastic impacts between two shapes under any condition. It highlights the relationship between the normal force and a contact potential field.

COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING (2021)

Article Engineering, Multidisciplinary

An energy-conserving contact theory for discrete element modelling of arbitrarily shaped particles: Contact volume based model and computational issues

Y. T. Feng

Summary: The contact volume based energy-conserving contact model presented in the paper improves efficiency and applicability by determining contact energy through contact volume without introducing additional assumptions/parameters. The linear contact model derived from a linear contact energy function significantly reduces evaluation costs and is applicable to a wider range of contact shapes.

COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING (2021)

Article Engineering, Multidisciplinary

An effective energy-conserving contact modelling strategy for spherical harmonic particles represented by surface triangular meshes with automatic simplification

Y. T. Feng

Summary: The proposed method utilizes a golden spiral lattice to generate initial triangular mesh, applies edge contraction algorithm to simplify the mesh, and adopts a linear normal contact model to calculate contact particle features. Numerical experiments show that the simplified mesh has low geometric approximation error and achieves expected mechanical responses.

COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING (2021)

Article Construction & Building Technology

Investigating effect of particle shape on suffusion by CFD-DEM modeling

Hao Xiong et al.

Summary: This study investigates the effect of particle shape on suffusion by using different aspect ratios and the CFD-DEM method. The results show that particle shape has an inhibitory effect on erosion rate.

CONSTRUCTION AND BUILDING MATERIALS (2021)

Article Engineering, Chemical

NURBS-based DEM for non-spherical particles

Shiwen Liu et al.

PARTICUOLOGY (2020)

Article Computer Science, Interdisciplinary Applications

On Minkowski difference-based contact detection in discrete/discontinuous modelling of convex polygons/polyhedra Algorithms and implementation

Y. T. Feng et al.

ENGINEERING COMPUTATIONS (2020)

Article Mathematics, Interdisciplinary Applications

A class of particulate problems suited to FDEM requiring accurate simulation of shape effects in packed granular structures

John-Paul Latham et al.

COMPUTATIONAL PARTICLE MECHANICS (2020)

Article Mathematics, Interdisciplinary Applications

FSIS: a novel fluid-solid interaction solver for fracturing and fragmenting solids

Antonio Munjiza et al.

COMPUTATIONAL PARTICLE MECHANICS (2020)

Article Mathematics, Interdisciplinary Applications

Capturing heat transfer for complex-shaped multibody contact problems, a new FDEM approach

Clement Joulin et al.

COMPUTATIONAL PARTICLE MECHANICS (2020)

Article Engineering, Multidisciplinary

Fourier series-based discrete element method for computational mechanics of irregular-shaped particles

Zhengshou Lai et al.

COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING (2020)

Article Computer Science, Interdisciplinary Applications

Exploring the effects of particle shape and content of fines on the shear behavior of sand-fines mixtures via the DEM

Jian Gong et al.

COMPUTERS AND GEOTECHNICS (2019)

Article Engineering, Geological

A poly-superellipsoid-based approach on particle morphology for DEM modeling of granular media

Shiwei Zhao et al.

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

Article Materials Science, Multidisciplinary

A three-dimensional particle roundness evaluation method

Zhihong Nie et al.

GRANULAR MATTER (2018)

Article Materials Science, Multidisciplinary

All you need is shape: Predicting shear banding in sand with LS-DEM

Reid Kawamoto et al.

JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS (2018)

Article Materials Science, Multidisciplinary

A three-dimensional particle roundness evaluation method

Zhihong Nie et al.

GRANULAR MATTER (2018)

Article Materials Science, Multidisciplinary

An image based clump library for DEM simulations

Junxing Zheng et al.

GRANULAR MATTER (2017)

Article Engineering, Chemical

Particle shape effects on fabric of granular random packing

Shiwei Zhao et al.

POWDER TECHNOLOGY (2017)

Article Materials Science, Multidisciplinary

An image based clump library for DEM simulations

Junxing Zheng et al.

GRANULAR MATTER (2017)

Article Materials Science, Multidisciplinary

Discrete element simulations of direct shear tests with particle angularity effect

Shiwei Zhao et al.

GRANULAR MATTER (2015)

Article Materials Science, Multidisciplinary

Discrete element simulations of direct shear tests with particle angularity effect

Shiwei Zhao et al.

GRANULAR MATTER (2015)

Article Materials Science, Multidisciplinary

Parking simulation of three-dimensional multi-sized star-shaped particles

Zhigang Zhu et al.

MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING (2014)

Article Mathematics, Interdisciplinary Applications

On the contact treatment of non-convex particles in the granular element method

Keng-Wit Lim et al.

COMPUTATIONAL PARTICLE MECHANICS (2014)

Article Engineering, Multidisciplinary

Granular element method for computational particle mechanics

Jose E. Andrade et al.

COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING (2012)

Article Engineering, Multidisciplinary

Energy-conserving contact interaction models for arbitrarily shaped discrete elements

Y. T. Feng et al.

COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING (2012)

Article Physics, Fluids & Plasmas

Force chains and contact network topology in sheared packings of elongated particles

Emilien Azema et al.

PHYSICAL REVIEW E (2012)

Article Engineering, Chemical

Dynamic Simulation of the Packing of Ellipsoidal Particles

Zong-Yan Zhou et al.

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH (2011)

Article Physics, Multidisciplinary

The packing properties of superellipsoids

G. W. Delaney et al.

Article Physics, Fluids & Plasmas

Stress-strain behavior and geometrical properties of packings of elongated particles

Emilien Azema et al.

PHYSICAL REVIEW E (2010)

Article Physics, Multidisciplinary

A computational investigation on random packings of sphere-spherocylinder mixtures

Lu Peng et al.

SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY (2010)

Article Engineering, Chemical

Force model considerations for glued-sphere discrete element method simulations

Madhusudhan Kodam et al.

CHEMICAL ENGINEERING SCIENCE (2009)

Article Computer Science, Interdisciplinary Applications

On the validation of DEM and FEM/DEM models in 2D and 3D

Jiansheng Xiang et al.

ENGINEERING COMPUTATIONS (2009)

Article Computer Science, Interdisciplinary Applications

A poly-ellipsoid particle for non-spherical discrete element method

John F. Peters et al.

ENGINEERING COMPUTATIONS (2009)

Article Engineering, Geological

A simple method to create complex particle shapes for DEM

J. -F. Ferellec et al.

GEOMECHANICS AND GEOENGINEERING-AN INTERNATIONAL JOURNAL (2008)

Article Engineering, Geological

Particle shape effects on packing density, stiffness, and strength: Natural and crushed sands

GC Cho et al.

JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING (2006)

Article Engineering, Multidisciplinary

Polygon-based contact resolution for superquadrics

K Han et al.

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING (2006)

Article Multidisciplinary Sciences

Improving the density of jammed disordered packings using ellipsoids

A Donev et al.

SCIENCE (2004)

Article Multidisciplinary Sciences

The modelling of particle systems with real shapes

JP Latham et al.

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES (2004)

Article Computer Science, Interdisciplinary Applications

A 2D polygon/polygon contact model: algorithmic aspects

YT Feng et al.

ENGINEERING COMPUTATIONS (2004)

Article Engineering, Multidisciplinary

3D dynamics of discrete element systems comprising irregular discrete elements - integration solution for finite rotations in 3D

A Munjiza et al.

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING (2003)

Article Engineering, Multidisciplinary

A 3D contact smoothing method using Gregory patches

MA Puso et al.

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING (2002)