[HTML][HTML] Dynamic notched semi-circle bend (NSCB) method for measuring fracture properties of rocks: Fundamentals and applications

W Yao, K Xia - Journal of Rock Mechanics and Geotechnical …, 2019 - Elsevier
Rocks are increasingly used in extreme environments characterised by high loading rates
and high confining pressures. Thus the fracture properties of rocks under dynamic loading …

Grain-based discrete element method (GB-DEM) modelling of multi-scale fracturing in rocks under dynamic loading

XF Li, QB Zhang, HB Li, J Zhao - Rock Mechanics and Rock Engineering, 2018 - Springer
This study aims to explore dynamic behaviours of fracturing and damage evolution of rock
materials at the grain scale. A grain-based discrete element method (GB-DEM) is proposed …

A micromechanical investigation for the effects of pore size and its distribution on geopolymer foam concrete under uniaxial compression

TT Nguyen, HH Bui, TD Ngo, GD Nguyen… - Engineering Fracture …, 2019 - Elsevier
This study investigates the influences of pore-structure and mortar properties on the fracture
behaviour of geopolymer foamed concrete. The discrete element method (DEM) is utilised to …

An open-source Abaqus implementation of the phase-field method to study the effect of plasticity on the instantaneous fracture toughness in dynamic crack …

G Molnár, A Gravouil, R Seghir, J Réthoré - Computer Methods in Applied …, 2020 - Elsevier
Brittle and ductile dynamic fracture in solids is a complex mechanical phenomenon which
attracted much attention from both engineers and scientists due to its technological interests …

Experimental research on the dynamic mechanical properties and damage characteristics of lightweight foamed concrete under impact loading

S Feng, Y Zhou, Y Wang, M Lei - International Journal of Impact …, 2020 - Elsevier
As an energy-saving and environmentally friendly building material, foamed concrete has
been widely applied for construction against impact loading. To investigate the dynamic …

Dynamic tensile behaviours of heterogeneous rocks: the grain scale fracturing characteristics on strength and fragmentation

XF Li, X Li, HB Li, QB Zhang, J Zhao - International Journal of Impact …, 2018 - Elsevier
The dynamic tension behaviours of granites are tested with the split Hopkinson pressure bar
and the quasi-static responses including the compression and Brazilian splitting are carried …

A cohesive damage-plasticity model for DEM and its application for numerical investigation of soft rock fracture properties

NHT Nguyen, HH Bui, GD Nguyen… - International Journal of …, 2017 - Elsevier
The failure of soft rocks is highly concerned in both research and practice due to the
vulnerability of materials and its involvement in a wide range of foundation and mine …

Experimental study on dynamic mechanical and failure behavior of a jointed rock mass

X Xie, J Li, Y Zheng - International Journal of Rock Mechanics and Mining …, 2023 - Elsevier
In order to study the dynamic mechanics and failure behavior of jointed rock masses, impact
tests were carried out on sandstone specimens with intersected jointed and unjointed intact …

Comparative analysis of dynamic constitutive response of hybrid fibre-reinforced concrete with different matrix strengths

Q Fu, M Bu, W Xu, L Chen, D Li, J He, H Kou… - International Journal of …, 2021 - Elsevier
In this study, the dynamic compressive behaviour of concrete reinforced with hybrid basalt-
polypropylene fibres (HBPRC) and different matrix strengths was investigated using a split …

Study on the effect of micro-geometric heterogeneity on mechanical properties of brittle rock using a grain-based discrete element method coupling with the cohesive …

C Pan, X Li, L He, J Li - International Journal of Rock Mechanics and …, 2021 - Elsevier
The micro-geometric heterogeneity has a significant effect on the mechanical behavior and
failure mode of brittle rocks. To study the influence of the size distribution and preferred …