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Mostrando ítems 1-9 de 9
Artículo
Design of lead-free PVDF/CNT/BaTiO3 piezocomposites for sensing and energy harvesting: The role of polycrystallinity, nanoadditives, and anisotropy
(IOP Publishing Ltd, 2020-01)
Lead-free piezoelectric composites with polymeric matrices offer a scalable and eco-friendly solution to sensing and energy harvesting applications. Piezoelectric polymers such as PVDF are particularly interesting because ...
Ponencia
An xfem-based numerical scheme to compute crack-induced electrical resistivity changes in cracked cnt-reinforced composites using ansys
(American Institute of Physics Inc., 2020-11-30)
This paper presents an eXtended Finite Element Method (XFEM)-based numerical scheme to compute electrical resistivity changes caused by the presence of cracks. Using the commercial finite element package ANSYS, the virtual ...
Artículo
Analytical expressions to estimate the effective piezoelectric tensor of a textured polycrystal for any crystal symmetry
(Elsevier, 2020-12)
This work introduces a set of analytical expressions that simplify the procedure for obtaining closed-form formulas to estimate the effective piezoelectric properties of polycrystalline aggregates formed by crystals of all ...
Artículo
Discontinuous quarter-point boundary elements revisited: Computation of T-stress in two-dimensional cracked components
(Elsevier, 2023-12)
This paper analyzes the use of discontinuous quarter-point quadratic elements in a dual or hypersingular boundary element context to compute the T-stress for cracked 2-D isotropic components. The performance of this ...
Artículo
Robust improvement of the finite-element-model updating of historical constructions via a new combinative computational algorithm
(Elsevier, 2024-04)
Finite-element-models are usually employed to simulate the behaviour of historical constructions. However, despite the high complexity of these numerical models, there are always discrepancies between the actual behaviour ...
Artículo
Crack-induced electrical resistivity changes in cracked CNT-reinforced composites
(Elsevier, 2020-04)
Carbon nanotube (CNT)-reinforced composites exhibit a piezoresistive behavior that permits their use as sensors in novel structural health monitoring (SHM) applications, by measuring the electrical resistivity change of ...
Tesis Doctoral
Parameter estimation of dynamic systems: application to civil engineering structures
(2020-10-13)
La estimación de parámetros de sistemas dinámicos se basa en inferir los parámetros del sistema a partir del conocimiento de un conjunto de entradas y salidas. En ingeniería civil, la principal aplicación es la actualización ...
Artículo
XFEM crack growth virtual monitoring in self-sensing CNT reinforced polymer nanocomposite plates using ANSYS
(Elsevier, 2022-03)
This paper presents an eXtended Finite Element Method (XFEM)-based numerical scheme to compute electrical resistivity changes caused by the presence of cracks and the crack growth. Using the commercial finite element package ...
Artículo
Motion-Based Design of Passive Damping Systems to Reduce Wind-Induced Vibrations of Stay Cables under Uncertainty Conditions
(MDPI, 2020-03)
Stay cables exhibit both great slenderness and low damping, which make them sensitive to resonant phenomena induced by the dynamic character of external actions. Furthermore, for these same reasons, their modal properties ...