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discrete element method

Impact Force plotting using Abaqus/Explicit

Submitted by davm5 on
software
Abacus
ABAQUS 13.2
abacus modelling
numerical modelling
impact force
# Finite Element modeling
discrete element method
abaqus explicit
Abaqus contact problem

Hello Everyone

I am trying to simulate material dumping process from shovel onto mining dump truck. And for that i am using Abaqus/Explicit.  When i plot the contact force of material falling onto truck body under gravity, it gives me the maximum value of 0.12e+11, where as a simple theoretical analysis shows that the resulting impact force for 100 tons of material falling under gravity should be 9e5 N. I am not been able to understand the reason that why Abaqus /Explicit is exaggerating the impact/contact force so much. And i dont know how to correct this thing.

Two postdoctoral positions in Mechanics of Materials at Oregon State University

Submitted by jkruzic on
job
2 postdoctoral positions
discrete element method
mechanical testing
computational materials science

We are seeking to fill two postdoctoral scholar positions at Oregon State University. The ideal candidates will have expertise in one or more of the following: computational materials science, granular mechanics, solid mechanics, and/or mechanical testing of materials. Positions will initially be for 1 year with an anticipated starting date of January 1st, 2015, with the possibility to continue for a second year depending on performance and continued funding.

The successful candidates will:

Research Associate in 4D Image based quantification and simulation

Submitted by Lee Margetts on
job
Finite Element Method
X-ray microtomography (XMT)
discrete element method
multiscale modeling
An excellent opportunity to work in a world leading team with privileged access to facilities that most researchers can only dream about.
Closing date: 18/04/2013

Reference: EPS-02440

Faculty / Organisational unit : Engineering Physical Sciences, School of Materials

Division : X-Ray
Imaging

Salary : Grade 6 (currently £29,541 - £36,298 p.a.)

Employment type : Fixed Term

Experienced Researcher Fellowship / Post Doc position - Characterisation of powder properties using DEM (IPROCOM)

Submitted by marigom on
job
materials modeling
modelling
Modeling and Simulation
discrete element method
DEM
Marie Curie
particle technology
IPROCOM

VACANCY

TECHNOLOGY CENTRE – CHILTON

 

Experienced Researcher Fellowship /
Post Doc position -  Characterisation
of powder properties using DEM.

Marie Curie Initial Training Network – IPROCOM

Johnson Matthey Technology Centre,
Billingham, UK

Ref: D14

£ - Competitive

2 years, to start by 1st October 2013

Numerical Simulation of Particle Stress and Fracture using FEMDEM: Application to Process Catalysts

Submitted by marigom on
job
fracture
FEM
discrete element method
DEM
imperial college
johnson matthey

Supervision:

 Dr JP Latham, Dr Jiansheng Xiang

Industry Contacts:

Principal Investigator - Dr Michele Marigo

Co-investigators - Dr Mikael Carlsson, Prof Hugh Stitt

Applications are invited for a PhD studentship to join AMCG (Applied Modelling and Computational Group) in the Department of Earth Science & Engineering.

MARIE CURIE FELLOWSHIP - Early Stage Researcher

Submitted by jsun on
job
computational mechanics
discrete element method

Are you a recent graduate in civil, mechanical or chemical engineering, physics
or applied mathematics, with experience in one or more of the following: solid
or soil/granular mechanics, discrete element method (DEM), bulk solids handling,
computational multiphase flow modelling?
Looking to develop a career in cutting-edge engineering with the opportunity to
live and work internationally?
The PARDEM project has brought together industrial and academic partners to
develop the DEM modelling techniques and to predict the behaviour of granular
solids such as pellets, grains, sand and biomass for industrial applications.
As part of PARDEM, the University of Edinburgh has outstanding doctoral training
opportunities in the area of granular solids. We are seeking an exceptional

Shape of particles in DEM

Submitted by WaiChing Sun on
research
discrete element method

Many granular materials encountered in engineering practice are of irregular shapes that are not essentially smooth or rounded. However, in DEM, grains are idealized as spheres and ellipsoids and their surface are assumed to be sufficiently smooth. As a result, I wonder why there is no model of  irregular shapes and what is the difficulty on implementing such a model? Is there any recent work aimed to simulate grains of irregular shape? Thanks a lot. 

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