GDR MePhy

MS 58 “Experiments and modeling of smart active materials with electro-  and magneto-mechanical coupling“ (more info here)

The next European Conference on Computational Mechanics (ECCM – ECFD) will take place from

June 11th to 15th, 2018, in Glaskow, UK.

The deadline for abstract submission is January 31st, 2018.

For more information and to contribute, visit the conference website: http://www.eccm-ecfd2018.org/frontal/default.asp

We are looking forward to your contribution and to seeing you at the meeting.

Best regards,

George Chatzigeorgiou (CNRS, France)

Kostas Danas (CNRS, Ecole Polytechnique, France)

Antonio J. Gil (Swansea University, UK)

Mokarram Hossain (Swansea University, UK)

Marc-Andre Keip (University of Stuttgart, Germany)

Dennis Kochmann (ETH Zurich, Switzerland)

Paul D. Ledger (Swansea University, UK)

Prashant Saxena (IIT Hyderabad, India)

Jörg Schröder (Universität Duisburg-Essen, Germany)

Chers collègues,

nous organisons, Ken Kamrin, Thomas Weinhart et moi-même, un mini-symposium intitulé “Modelling and Computational Challenges in Granular Flows” pour le 13ème World Congress in Computational Mechanics (WCCM), qui aura lieu du 22 au 27 juillet 2018 à New-York City. Le descriptif du mini-symposium est donné en fin de ce message.

Nous vous invitons à soumettre un abstract depuis le site de la conférence (http://www.wccm2018.org/), la date limite de soumission étant fixée au 31 décembre 2017.

N’hésitez pas à transmettre cette invitation à vos collègues ou étudiants !

Bien cordialement,

Ken, Thomas et Rudy

Session details:

Title: Modelling and Computational Challenges in Granular Flows

Keywords: Granular flows, Computational Methods, Fluid Dynamics.

Abstract: Granular flows are ubiquitous in many fields such as industrial processing, mining, energy production, food powders, biology, geoscience, or mechanical and civil engineering. The analysis and prediction of these flows is challenging as they often occur in complex geometries and their rheology can be influenced by many microscopic and macroscopic parameters. Different computational approaches exist:

– Discrete particle methods (DPMs) are a very powerful computational tool that allows the simulation of individual particles with complex interactions, arbitrary shapes, in arbitrary geometries, by solving Newton’s laws for each particle. This means elaborate interactions of sintering, breaking and agglomeration of particles can be captured by the contact model. However, this method is computationally expensive and is not able to deal with the vast number of particles involved in full-scale industrial or environmental situations.

– On the other hand, continuum methods can simulate the volume of real industrial flows, but have to make averaging approximations and require physical modelling, sometimes inspired by DPM results. Once these averaged parameters have been tuned via experimental data, these models can be surprisingly accurate but their general applicability is still to demonstrate.

An accurate prediction of granular flow is very important for the efficiency and safety of the design of many engineering and industrial applications. This mini-symposium aims to provide an opportunity for physicists, engineers, applied mathematicians and computational scientists to discuss the current progress and latest advancements in the field of advanced modelling and numerical methods for predicting granular flows. The focus will be on new rheological models, computational methods, improved algorithms and the modelling of interesting industrial and academic applications. Submissions can include, but are not limited to the following aspects: capturing shape and surface properties of grains; erosion and deposition; segregation; sintering; fluid-particle interaction; cohesive grains; non-local continuum theories; applications; and, description of benchmark problems for the community.

A mini-symposium entitled “Mechanical response of complex and disordered materials” will take place 
at the 13th World Congress on Computational Mechanics to be held July 22-27, 2018 in New York City.

Abstract: This mini-symposium focuses on the small scale mechanical response of complex materials (disordered materials, glasses, granular media, beam lattices, fibreous materials, etc.) subjected to mechanical load. These materials exhibit complex inhomogeneous deformations, with strain localization and/or history dependence, yielding to unusual visco-plastic properties.
The application of numerical approaches for analyzing the response of the complex microstructure of disordered materials has resulted in a coupling between scales, with the goal of formulating a continuum description of the mechanical response at large scale from first principles. Such approaches include molecular dynamics simulations, smoothed particle hydrodynamics, coarse-graining methods, second-gradient or Cosserat modelization, and mesoscopic modelling.
The purpose of the meeting is to answer the following questions: How may one take into account the microstructure of such disordered materials? How much precision is required for adequately capturing particular properties? Is there a length scale dependence in the continuum description of such systems? What is the most appropriate way to transfer information from the lower to the upper length scale.
The mini-symposium will be organized into successive sessions, interspersed with time slots specifically devoted to thematic discussions.
It will promote interactions between participants from mechanical engineering, computational mechanics as well as condensed matter and statistical physics.

More informations on http://www.wccm2018.org/
Call for abstract will start in the mid-October

Waiting to see you there

Tristan Albaret, Michael Falk, Anne Tanguy, Damien Vandembroucq