Speaker
Luis Carlos Martins Da Silva, Assistant Professor of Mechanics of Solids and Structures, Politecnico di Milano, Department A.B.C., Piazza Leonardo da Vinci, 20133, Milan, Italy. e-mail: luiscarlos.martinsdasilva@polimi.it
Abstract of the seminar
Overview of the application of a Rigid-Body-Spring Model (RBSM) to the mechanical analysis of traditional materials, such as masonry, and its extension to the design of metamaterials. The capabilities of the model are demonstrated through three distinct cases: (1) The use of first-order homogenization, followed by upscaling, allows for the study of elastic and inelastic responses in masonry structures, both in-plane and out-of-plane, covering problems with and without strain-rate dependence. (2) The in-plane elastic response of standard and auxetic materials under non-homogeneous deformation is examined, as well as the behaviour of auxetic foams under large deformations. (3) The model is further applied to the design of micro-structured materials for additive manufacturing. Two examples are presented: an auxetic metamaterial (v=-1.0) and a standard material (v=0.2) exhibiting ultra-soft macro-behaviour (G=5.0 MPa), despite the use of a single printing material.
Short bio
Luis C. Silva is an Assistant Professor in the A.B.C. Department at Politecnico di Milano. He completed his Ph.D. (cum laude) at the University of Minho in 2019. Following this, he worked as a post-doctoral researcher on the H2020 Project RESIST and was an Assistant Professor at Universidade Lusófona in Lisbon. His research centres on advanced numerical modelling for the structural analysis of composite materials, with key contributions in seismic assessment of masonry structures, dynamic analysis, and recently in the study of metamaterials. He has published over 20 papers in international journals and more than 20 in international conference proceedings.