Hao Shi
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View article: Reinventing the wheel: a simulation-aided design of a soft, shape-adapting, lugged wheel for locomotion on sandy terrains
Reinventing the wheel: a simulation-aided design of a soft, shape-adapting, lugged wheel for locomotion on sandy terrains Open
Locomotion over granular terrain poses significant challenges for autonomous robotic systems, particularly in coastal regions characterized by loose, shifting sands. To optimize the locomotion on these challenging terrains, a simulation-ai…
View article: Crack propagation and CT imaging of internal cracks in rocks damaged by pre-compression under explosive loading
Crack propagation and CT imaging of internal cracks in rocks damaged by pre-compression under explosive loading Open
This study investigates the dynamic crack propagation mechanism in damaged rocks under blasting excavation in complex geological conditions. A novel rock fracture analysis method based on pre-compression-induced random damage is proposed, …
View article: A validated DEM modelling framework on plate and pile penetrations in a double-layer scour protection system
A validated DEM modelling framework on plate and pile penetrations in a double-layer scour protection system Open
View article: A Novel Axial Load Inversion Method for Rock Bolts Based on the Surface Strain of a Bearing Plate
A Novel Axial Load Inversion Method for Rock Bolts Based on the Surface Strain of a Bearing Plate Open
Anchor rock bolts are among the essential support components employed in coal mine support engineering. Measuring the axial load of the supporting anchor bolts constitutes an important foundation for evaluating the support effect and the m…
View article: Identification of dominant DEM parameters for multi-component segregation during heap formation, hopper discharge and chute flow
Identification of dominant DEM parameters for multi-component segregation during heap formation, hopper discharge and chute flow Open
Segregation of granular materials is a critical phenomenon in various industries, such as food processing, pharmaceuticals, and mining. The Discrete Element Method (DEM) is an effective tool for gaining insight into granular segregation by…
View article: Damage and weakening effects of blasting on anchored rock mass
Damage and weakening effects of blasting on anchored rock mass Open
During blasting excavation of roadways, dynamic load is an important cause of damage to anchored rock mass and threatens the reliability of anchoring structures. Through theoretical analysis and numerical simulation, we studied the propaga…
View article: Efficient modelling of ceramic sintering processes: Application to bilayers and membranes
Efficient modelling of ceramic sintering processes: Application to bilayers and membranes Open
View article: Non-Intrusive Model Order Reduction for Sintering Applications
Non-Intrusive Model Order Reduction for Sintering Applications Open
We are interested in thermo-mechanical problems arising in the context of a practically relevant manufacturing process called sintering. These models can be defined using a non-linear material model, namely the Skorohod-Olevsky Viscous Sin…
View article: How the Packing Density and Penetration Resistance is Influenced by Particle Shape: DEM Modelling of Plate Penetration in Granular Media
How the Packing Density and Penetration Resistance is Influenced by Particle Shape: DEM Modelling of Plate Penetration in Granular Media Open
Granular materials play a crucial role in various geotechnical, mining, and bulk handling applications. Understanding their mechanical properties is essential for optimal use in these industries. Traditional experimental methods like Cone …
View article: New non-destructive method for testing the strength of cement mortar material based on vibration frequency of steel bar: Theory and experiment
New non-destructive method for testing the strength of cement mortar material based on vibration frequency of steel bar: Theory and experiment Open
View article: Stretching the limits of dynamic and quasi-static flow testing on cohesive limestone powders
Stretching the limits of dynamic and quasi-static flow testing on cohesive limestone powders Open
View article: Stretching the limits of dynamic and quasi-static flow testing on limestone powders
Stretching the limits of dynamic and quasi-static flow testing on limestone powders Open
Powders are a special class of granular matter due to the important role of cohesive forces. The flow behavior of powders depends on the flow states and stress and is therefore difficult to measure/quantify with only one experiment. In thi…
View article: Effect of particle size on powder compaction and tablet strength using limestone
Effect of particle size on powder compaction and tablet strength using limestone Open
View article: Fast, flexible particle simulations — An introduction to MercuryDPM
Fast, flexible particle simulations — An introduction to MercuryDPM Open
We introduce the open-source package MercuryDPM, which we have been developing over the last few years. MercuryDPM is a code for discrete particle simulations. It simulates the motion of particles by applying forces and torques that stem e…
View article: Steady state rheology of homogeneous and inhomogeneous cohesive granular materials
Steady state rheology of homogeneous and inhomogeneous cohesive granular materials Open
This paper aims to understand the effect of different particle/contact properties like friction, softness and cohesion on the compression/dilation of sheared granular materials. We focus on the local volume fraction in steady state of vari…
View article: Cohesion-driven mixing and segregation of dry granular media
Cohesion-driven mixing and segregation of dry granular media Open
View article: Tensile strength of cohesive powders
Tensile strength of cohesive powders Open
View article: Faster, more flexible particle simulations: The future of MercuryDPM
Faster, more flexible particle simulations: The future of MercuryDPM Open
We focus on the main new developments underway in MercuryDPM. New features include deformable clusters (agglomerates), experimental coarse-graining, melting particles, particle-solid interactions, multi-resolution particle-fluid coupling, …
View article: MercuryDPM: Fast, flexible particle simulations in complex geometries : Part B: Applications
MercuryDPM: Fast, flexible particle simulations in complex geometries : Part B: Applications Open
MercuryDPM is a particle-simulation software developed open-source by a global network of researchers. It was designed ab initio to simulate realistic geometries and materials, thus it contains several unique features not found in any oth…
View article: Effect of Particle Size and Cohesion on Powder Yielding and Flow
Effect of Particle Size and Cohesion on Powder Yielding and Flow Open
The bulk properties of powders depend on material characteristics and size of the primary particles. During storage and transportation processes in the powder processing industry, the material undergoes various modes of deformation and str…
View article: Granular Flow: From Dilute to Jammed States
Granular Flow: From Dilute to Jammed States Open
Particulate systems and granular matter display dynamic or static, fluid‐ or solid‐like states, respectively, or both at the same time. The mystery of bridging the gap between the particulate, microscopic state and the macroscopic, continu…
View article: Steady state rheology from homogeneous and locally averaged simple shear simulations
Steady state rheology from homogeneous and locally averaged simple shear simulations Open
Granular materials and particulate matter are ubiquitous in our daily life and they display interesting bulk behaviors from static to dynamic, solid to fluid or gas like states, or even all these states together. To understand how the micr…
View article: Limestone Powders Yielding and Steady State Resistance under shearing with different testers
Limestone Powders Yielding and Steady State Resistance under shearing with different testers Open
We study the effect of both particle size and shear testers on the failure (yielding) and the steady state shear strength of granular materials. Physical experiments are carried out on four fine limestone powders using a geotechnical direc…
View article: Numerical and experimental investigation of yielding for cohesive dry powder
Numerical and experimental investigation of yielding for cohesive dry powder Open
We study the effect of particle cohesion on the steady state shear strength of a granular material. For cohesive powders, the steady state shear loci (termination loci) from DEM simulations are nonlinear with a peculiar pressure dependence…