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CIMNE Coffee Talk - "The Bonded DEM. Strength and weakness", by Miguel Ángel Celigueta

Published: 17/09/2018

Youtube CIMNE videos Seminar video on Youtube (See seminar)

Wednesday, November 21st, 2018. Time:

Place: O.C. Zienkiewicz Conference Room, C1 Building, UPC Campus Nord, Barcelona


The Discrete Element Method (DEM) was initially intended for particulate systems but it has expanded to other fields. Being a useful tool for discontinuum mechanics, many attempts have been done to model fracture of continuum materials with the so called ‘Bonded DEM’. However, one might ask: how good is the DEM for modeling the intact parts of a solid? How good is the DEM for continua? The answer could be simplified as ‘not really good, in general’. This coffee talk will tackle this question: the speaker will expose the weakness of the commonly used approaches, and will explain the newly proposed solutions for them. The latest developments at CIMNE have proven an outstanding performance of the Bonded DEM in the elastic regime and fragile fracture with the most typical Yield Surfaces.


Miguel Angel Celigueta is a researcher at CIMNE since 2004.

Civil Engineer by the Universitat Politècnica de Catalunya since 2005 and lecturer at the same university since 2011, his research work has been focused mainly on "Particle Methods". Among them, particular effort was put on the PFEM and the DEM. 
He has experience in the numerical CFD simulation of waves (PFEM), fluid-structure interaction, off-shore structures, breakwaters and particle transport in fluids (DEM-FEM and DEM-PFEM). He is also the coordinator of the DEMPack Team (the group of researchers developing the DEM application based on the Kratos Muliphysics framework - and one of the members of the Kratos Technical Management Team (KTMT).

See full Coffee Talk programme