Wednesday, May 29th, 2019. Time: 15h.
Place: O.C. Zienkiewicz Conference Room, C1 Building, UPC Campus Nord, Barcelona
Several methods can be found in the literature to model discontinuities in solids and porous media, e.g., XFEM, DEM, smeared crack methods, discrete crack approaches, etc. In this work, discontinuities are modeled by means of quasi-zero-thickness interface elements in a FEM-based approach. These special elements, which can be used to define either pre-existing or propagating cracks, act as joints that allow representing the jump in the displacement field and the directional preferences in the fluid flow.
The talk will try to cover the fundamental theory and governing equations of the interface elements implemented in Kratos, and then some application examples, in the field of civil engineering and composite laminates, will be presented to illustrate the features of the proposed methodology.
Ignasi de Pouplana holds a Civil Engineer Bachelor and a M.Sc. degree in Structural and Construction Engineering since 2015 by the Universitat Politècnica de Catalunya (UPC), and a Ph.D. in Structural Analysis by the same university since 2018.
His scientific career started in 2012 at CIMNE (www.cimne.com) under the supervision of Professor Eugenio Oñate. He worked on several topics including particle media using the DEM, and continuum damage mechanics using FEM.
He developed the Ph.D. on fluid-structure interaction in porous and fractured media. Topics of major interest included: stable analysis of the fluid flux in porous media and model of fractures using of “quasi-zero-thickness interface elements”.
Ignasi is currently a post-doctoral researcher at CIMNE working on lagrangian fluid-structure interaction. He is also an instructor at UPC and an active developer of Kratos Multiphysics.