Thursday, April 7th, 2022. Time: 15h
Online – Session link: https://meet.google.com/ywr-jgsi-pzw
ABSTRACT – FIRST TALK
Modeling Arbitrary Shape Particles with the Level Set Discrete Element Method (LS-DEM)
Representing the particles as spheres is not realistic for some applications, that is the case of our sintering powders. The level set discrete element method (LS-DEM) jointly uses the dynamic framework of the classical DEM and the level set method to capture arbitrary shapes. A LS-DEM model for sintering is under development. I will describe the fundamentals of LS-DEM, with emphasis in the contact detection algorithm.
This talk will be given in English.
SPEAKER CV
- Ecuadorian.
- Master and chemical engineer degree by the Federal University of Santa Catarina, Florianopolis-Brazil.
- CAE Specialist at ESSS (2014-2019), Brazil, Colombia & Mexico.
- 3rd year PhD student at SIMAP, Univ. Grenoble-Alpes, France. Title: Discrete Element Method (DEM) analysis of constrained powder sintering
ABSTRACT – SECOND TALK
Ceramic sintering at the particle length scale – In-situ and post-mortem analyses by synchrotron nano-tomography
Ultra-high resolution capabilities at the nano-tomography beamline of the upgraded ESRF synchrotron facility have now made investigation of ceramic powders at the individual particle length-scale feasible.
These features were taken advantage of to investigate and improve the understanding of sintering in ceramic powder systems.
Complete 3D images were obtained with a voxel size as low as 25nm to depict particles and pores with enough details for subsequent quantitative analyses, providing us with images in the course of ceramic sintering at nano-scale for the first time. Several sintering phenomena contributing to the collective behaviour of the particles were observed at the local scale.
This talk will be given in English.
SPEAKER CV
- Indian.
- PhD research on ‘X-ray nano-tomography analysis of ceramic powder sintering’, in the context of the EU-funded MATHEGRAM Innovative Training Network.
- Currently working at CNRS, in Grenoble, France.
- Master’s degree in Computational Materials Science from the University of Stuttgart, Germany.
- Work experience at the Corporate Research division of Robert Bosch GmbH, Germany.
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