This document provides particle simulation for free surface and multi-phase flows using the MPS (Moving Particle Simulation) method.

Many powders and particulate solids are cohesive in nature and the strength often exhibits dependence on the consolidation stress. As a result, the stress history in the material leading up to a handling scenario needs to ...

Cell migration and proliferation has been modelled in several works of the literature as a process similar to diffusion. However, diffusion models to simulate the proliferation and migration of cells tend to create a ...

We use DEM simulations on a simple 2D model of a granular material to measure its deformation response to small stress increments of arbitrary directions (stress probes) and assess the applicability of the classical concepts ...

We report on the quasistatic behaviour of model granular materials, as probed by DEM simulations of isotropic compression and triaxial compression tests, focussing on the macroscopic behaviour dependence on control parameters ...

This paper focuses on the discrete modeling of triaxial behaviour of concrete. The originality of this work comes from two points. The first one concerns the predictive feature of the model developed for simulating the ...

In this paper we present a fully generalized transport model for multiple species in complex two and three-dimensional geometries. Based on previous work [1] we have extended our interfacial reaction-diffusion model to ...

In this paper, an improved dissipative particle dynamics (DPD) method was applied to simulate droplet motion in a grooved microchannel. Firstly the static contact angle between the droplet and the solid wall was simulated ...

Lagrangian vortex methods of simulating the vortex shedding which occurs at the bilges and sharp edges of floating bodies under oscillatory flow conditions due to incident waves and motion of the body in response are ...

This document provides an outline of the complete numerical scheme of the Finite Pointset Method (FPM), a meshfree general Finite Difference idea to simulate gasdynamics. The method uses a specialized upwind formulation ...

We use contact dynamic simulations to perform a systematic investigation of the effects of particles shape angularity on mechanicals response in sheared granular materials. The particles are irregular polyhedra with varying ...

In order to evaluate the biological properties of a human head response at impacts accidents, authors have been developing the SPH (Smooth Particle Hydrodynamics) particle model of the whole human head and analyzing ...

As a natural progress of the research in the area of modeling damage at microscopic scales, a discrete element method (DEM) has been proposed to simulate the damage progression in FRC laminates. DEM has been used to study ...

In this contribution, a systematic approach to the calibration of particle models, i.e. characterizing a relationship between microscopic (defined on the level of individual interparticle bonds) and macroscopic parameters ...

We use a 3D Lattice Element Method, based on the discretization of the particles and binding matrix on a regular lattice, to investigate the particle-scale origins of the strength and failure of porous granular aggregates ...

Particle-based methods apply some laws of Classical Mechanics to all the particles of a granular system. On the other hand, classical Statistical Mechanics deals with systems consisting of a lot of particles, focusing on ...

Discrete element methods are important tools for investigating the mechanics of granular materials. In two dimensions, the reliability of these numerical approaches is increasingly being challenged, because they cannot ...

We investigate the influence of the packing fraction of highly polydisperse particle systems on the performance of a high-performance multilevel contact detection algorithm as applied for molecular dynamics type simulations. ...

In this paper, the method of discrete element model (DEM) simulation was used to investigate the mechanical properties of SiC ceramic materials under the action of pre-stress. Using the bonded particle model (BPM), several ...

A general approach to realization of models of elasticity and plasticity of isotropic materials within the framework of discrete element method (DEM) is proposed in the paper. It is based on building many-body potentials/forces ...

We analyze the effect of particle shape non-convexity on the quasi-static behavior of granular materials by means of contact dynamics simulations. The particles are regular aggregates of four overlapping spheres described ...

This paper continues the path opened by previously published researches related to numerical models and stress-strain behaviour discrete particle models [1], [2] and [3]. In those researches was enounced how to generate ...

We present a strategy to improve the software quality for scientific simulation software, applied to the open source DEM code LIGGGHTS [1] [2]. We aim to improve the quality of the LIGGGHTS DEM code by two measures: Firstly, ...

The paper presents the results of the application of the Particle Finite Element Method (PFEM) to the analysis of some of the more complex phenomena related to dam hydraulics: shock waves in spillways, aeration in bottom ...

Smoothed particle hydrodynamics (SPH), a true mesh less method has been used to simulated the sloshing problem. The tank motion is restricted to regular horizontal excitation. A number of issues have been addressed while ...

A tangential contact model for three-dimensional discrete element simulations is proposed and used in the micro-mechanical simulation of a drained triaxial test. In this model, the dependence of the tangential contact force ...

This paper presents an analysis of the mechanical behaviour of coarse granular aggregates using the discrete element method. A background reference for the conducted study is the set of results of a few large scale triaxial ...

By means of contact dynamics simulations, we investigate the creep deformation of a thin granular layer composed of irregular polyhedral particles under the action of a constant vertical overload applied on a horizontal ...

High pressures on the soil surface by action of heavy machinery and tillage process cause soil compaction and hardpan layers formation. De-compaction is a energy demanding operation applied to break deeply compacted soil ...

The determination of the shear stress at which a sediment grain of a given size and density starts to move has been treated with theoretical, experimental and numerical procedures by many authors. The seminal contribution ...

The inclusion of particles (nano or micro) is a method to improve the mechanical properties such as toughness of structural adhesives. Structural adhesives are known for their high strength and stiffness but also for their ...

This work is focused on numerical simulation of the shrinkage phenomenon and its influence on overall elastic modulus of the composite and it is supported by experimental verification of results. It has been ...

Within the particle methods community, standard benchmark tests are needed to demonstrate that the governing equations are solved correctly. Whereas the finite element method (FEM) has long-established basic verification ...

A modified formulation of floating stress-point integration for large deformation analysis is presented. The modified formulation introduces an incremental internal force to the equilibrium equation instead of the virtual ...

This work reports the numerical performance of the Normalized Quadrature Method of Moments (NQMOM) involving more than one quadrature node (secondary particle) for dispersed phase flows coupled with the Finite Pointset ...

Physically realistic methods are a necessity to close the gap between reality and numerical result in modelling of tumbling mills. A problem is that tumbling mills often operate in a metastable state because of the difficulty ...

In this paper, dynamic simulation model which have many sphere particles and MBD (Multi Body Dynamics) entities, i.e. bodies, joints, forces, is built and simulated. Many sphere particles are solved with DEM (Discrete ...

We present a model for fluid-saturated granular media coupled flow and mechanical deformation. The fluid is assumed to be incompressible and the solid part is assumed to be a cohesive granular material. Forces exerted by the ...

The evolution of granular beds subjected to upward seepage flow is investigated using a coupled DEM-fluid model implemented by Catalano et al. in the open-source software Yade-DEM. Firstly, filtration properties of a coarse ...

An ISPH method for the simulation of three-phase flows is presented in this article. The proposed method is investigated through the simulation of a droplet located at the interface of two immiscible fluids as well as diamond ...

Material characterisation is one of the most important aspects of accurate numerical modelling; correct material properties must be obtained for the correct behaviour to be observed. Traditionally permeability is measured ...

It is well known that the burnishing process affects the surface characteristic, namely: surface roughness, surface hardness, wear resistance, fatigue resistance and increased maximum residual stress in compression. ...

This contribution presents a modelling tool for massive forming processes that is based on a particle method. The introduced model is able to represent the realistic behaviour of different types of forming processes. As ...

Corrective smoothed particle method (CSPM) has been used to study the dynamic behavior of targets with different materials; AL, ALN and AL-ALN FGM in long rod penetration of an AL projectile. A mixed strength model with ...

In this work, the Immersed Boundary Method (IBM) is adapted and implemented in the context of Smoothed Particle Hydrodynamics (SPH) method to study moving solid bodies in an incompressible fluid flow. The proposed computational ...