Mechanical properties and energy conversion of 3D close-packed lattice model for brittle rocks

C Liu, Q Xu, B Shi, S Deng, H Zhu - Computers & Geosciences, 2017 - Elsevier
Numerical simulations using the 3D discrete element method can yield mechanical and
dynamic behaviors similar to rocks and grains. In the model, rock is represented by bonded …

Peridynamics-based discrete element method (PeriDEM) model of granular systems involving breakage of arbitrarily shaped particles

PK Jha, PS Desai, D Bhattacharya, R Lipton - Journal of the Mechanics and …, 2021 - Elsevier
Abstract Usage, manipulation, transport, delivery, and mixing of granular or particulate
media, comprised of spherical or polyhedral particles, is commonly encountered in industrial …

Calibration of DEM simulations for dynamic particulate systems

C Windows-Yule, A Neveu - Papers in physics, 2022 - papersinphysics.org
Calibration and validation represent crucial but often-overlooked ingredients in the
successful application of discrete element method (DEM) simulations. Without rigorous …

A new thermo-mechanical coupled DEM model with non-spherical grains for thermally induced damage of rocks

Z Chen, X Jin, M Wang - Journal of the Mechanics and Physics of Solids, 2018 - Elsevier
Thermally induced damage often occurs in rocks in geophysical systems. Discrete element
method (DEM) is a useful tool to model this thermo-mechanical coupled process owing to its …

Spatial correlation and temporal evolution of plastic heterogeneity in sheared granular materials

G Ma, Y Zou, Y Chen, L Tang, T Ng, W Zhou - Powder Technology, 2021 - Elsevier
Granular materials will yield and undergo serrated plastic flow when subjected to loading.
The serrated plastic flow is related to the spatial concentration and temporal evolution of the …

Effect of contact location on the crushing strength of aggregates

R Artoni, A Neveu, Y Descantes, P Richard - Journal of the Mechanics and …, 2019 - Elsevier
This work deals with the effect of the contact location distribution on the crushing of granular
materials. At first, a simple drop weight experiment was designed in order to study the effect …

A novel 3D clumped particle method to simulate the complex mechanical behavior of rock

Y Ye, K Thoeni, Y Zeng, O Buzzi, A Giacomini - International Journal of …, 2019 - Elsevier
This paper presents a novel 3D clumped particle method for a more realistic prediction of the
complex mechanical characteristics of rock. In the proposed method, a clump originates from …

Effect of cement matrix on mechanical properties of cemented granular materials

W Wang, J Pan, F Jin, C Cui, B Wang - Powder Technology, 2019 - Elsevier
A well-defined cemented granular materials (CGMs) is created by filling cement matrix into a
densely packed granular assembly without disturbing granular backbone, in which particles …

Simulation of the attrition of recycled concrete aggregates during concrete mixing

J Moreno-Juez, LM Tavares, R Artoni, RM Carvalho… - Materials, 2021 - mdpi.com
Concrete mixing can lead to mechanical degradation of aggregates, particularly when
dealing with recycled concrete aggregates. In this work, the attrition of such materials during …

Fragmentation and shear band formation by slow compression of brittle porous media

G Pál, Z Jánosi, F Kun, IG Main - Physical Review E, 2016 - APS
Localized fragmentation is an important phenomenon associated with the formation of shear
bands and faults in granular media. It can be studied by empirical observation, by laboratory …