Exploració per altres contribucions "Arias Vicente, Irene"
Ara es mostren els items 1-19 de 19
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Computational modeling and rational design of flexoelectric metamaterials and devices
(Universitat Politècnica de Catalunya, 2021-07-22)
Tesi
Accés obertPiezoelectricity, the two-way coupling between electric polarization and strain is the basic mechanism behind most electromechanical transduction technologies. It is possible only in a limited number of materials, namely ... -
Development of mechanism-based models for resistance spot weld failure simulation of multi-material advanced high strength steel sheets
(Universitat Politècnica de Catalunya, 2017-12-05)
Tesi
Accés obertThe automotive industry is constantly involved in the development of new projects aimed at reducing weight, fuel consumptions and costs while improving passengers' safety. In order to achieve these increasing demands, ... -
Effect of flexoelectricity on elasticity characterization by nanoindentation
(Universitat Politècnica de Catalunya, 2017-06-16)
Projecte Final de Màster Oficial
Accés obertFlexoelectricity is a very common phenomenon in dielectrics and is a size-dependent electromechanical mechanism coupling polarization and strain gradient. Flexoelectric effect is significant due to higher strain gradients ... -
Flexoelectric effect in non-homogenous dielectrics
(Universitat Politècnica de Catalunya, 2022-06)
Projecte Final de Màster Oficial
Accés obertFlexoelectricity is a different electromechanical coupling without this material symmetry limitations, hence universal for all dielectrics. Flexoelectricity relies on symmetry breaking beyond the material chemistry by ... -
Flexoelectric metamaterials optimization
(Universitat Politècnica de Catalunya, 2021-09-13)
Projecte Final de Màster Oficial
Accés obertElectromechanical couplings play an important role in our day to day lives, as they are present in both natural biological systems and technological applications. Piezoelectricity, the two way coupling between strain and ... -
Flexoelectricity at surface instabilities and stress singularities
(Universitat Politècnica de Catalunya, 2023-06-16)
Tesi
Accés obert(English) The flexoelectric effect, the two-way linear coupling between strain gradient and electric polarization (direct flexoelectricity) or electric field gradient and strain (converse flexoelectricity) universally ... -
Flexoelectricity in nanobeams under torsion
(Universitat Politècnica de Catalunya, 2016-06-23)
Treball Final de Grau
Accés obertWe will study the effect of flexoelectricity in the electromechanical response of nanobeams under torsion. -
High performance computing for flexoelectric devices
(Universitat Politècnica de Catalunya, 2020-10)
Projecte Final de Màster Oficial
Accés obertThis exiting development requires a robust mathematical and computational framework for solving flexoelectric boundary value problems, mathematically a coupled system of 4th-order partial differential equations, in general ... -
Mathematical and computational modeling of flexoelectricity at fixed and moving interfaces, fracture surfaces and contact
(Universitat Politècnica de Catalunya, 2023-09-08)
Tesi
Accés obert(English) Flexoelectricity is a two-way coupling between strain gradient and polarisation or strain and polarization-gradient. Harnessing flexoelectricity as a functional property requires gradient engineering. This is a ... -
Mathematical and computational modeling of flexoelectricity at mesoscopic and atomistic scales
(Universitat Politècnica de Catalunya, 2021-03-01)
Tesi
Accés obertThis PhD thesis focuses on the development of mathematical and computational models for flexoelectricity, a relatively new electromechanical coupling that is present in any dielectric at the micron and sub-micron scales. ... -
Modeling of electromechanical transduction at finite deformation
(Universitat Politècnica de Catalunya, 2018-07-05)
Projecte Final de Màster Oficial
Accés restringit per decisió de l'autor -
Multiscale modeling of surface effects in small-scale electromechanics
(Universitat Politècnica de Catalunya, 2020-09-29)
Projecte Final de Màster Oficial
Accés restringit per decisió de l'autor -
Numerical simulation of flexoelectric cantilever actuators
(Universitat Politècnica de Catalunya, 2015-06-19)
Tesina
Accés obert -
Phase-field modeling of fracture in ferroelectric materials
(Universitat Politècnica de Catalunya, 2012-10-18)
Tesi
Accés obertThe unique electro-mechanical coupling properties of ferroelectrics make them ideal materials for use in micro-devices as sensors, actuators and transducers. Nevertheless, because of the intrinsic brittleness of ferroelectrics, ... -
Robust numerical solution of charge transport in flexophotovoltaic-based devices
(Universitat Politècnica de Catalunya, 2021-07)
Projecte Final de Màster Oficial
Accés obertIn this thesis, a robust computational framework for flexophotovoltaic-based devices has been developed. First, a model for describing the flexophotovoltaic effect in flexoelectric, non-piezoelectric materials is stated. ... -
Space-time bayesian hierarchical model for paleoclimate reconstruction
(Universitat Politècnica de Catalunya, 2022-10-18)
Projecte Final de Màster Oficial
Accés obertL'objectiu principal és reconstruir dades paleoclimàtiques per entendre l'evolució del clima. Això s'està fent utilitzant predictors espacials i temporals, com ara dades proxy i models bayesians per revelar les estadístiques ... -
Theoretical and computational modeling of charge transport in flexo-photovoltaics
(Universitat Politècnica de Catalunya, 2020-10)
Projecte Final de Màster Oficial
Accés obertIn this thesis, a model to describe the flexophotovoltaic effect is formulated by coupling the flexoelectricity equations with the drift-diffusion current equations. The resulting system of non-linear PDEs is numerically ... -
Towards a two dimensional model of surface piezoelectricity
(Universitat Politècnica de Catalunya, 2016-06-29)
Treball Final de Grau
Accés obertWe want to understand the behaviour of flexoelectricity and surface piezoelectricity and distinguish them in order to go deep into the controversies of the filed. This motivate the construction of a model of continuum ... -
The variational approach to brittle fracture in materials with anisotropic surface energy and in thin sheets
(Universitat Politècnica de Catalunya, 2016-03-08)
Tesi
Accés obertFracture mechanics of brittle materials has focused on bulk materials with isotropic surface energy. In this situation different physical principles for crack path selection are very similar or even equivalent. The situation ...