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Micro-mechanical analysis of composite materials using Phase-Field models of brittle fracture
(Elsevier, 2023-12)
Failure in fiber-reinforced composites is a complex phenomenon where different damage mechanisms interact and evolve through various scales. Micro-mechanical analysis using the finite element method has become an important ...
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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 ...
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Vibration serviceability assessment of the world's longest suspended footbridge in 2020
(Elsevier, 2022-10)
This paper investigates the vibrations induced by humans through in situ behaviour tests of the 516 Arouca footbridge (Portugal), the world's longest span in 2020 (516 m). The study consists of in situ experimental tests ...
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Effect of Vinyl Flooring on the Modal Properties of a Steel Footbridge
(MDPI AG, 2019-04)
Damping ratios associated with non structural elements play an important role in mitigating the pedestrian-induced vibrations of slender footbridges. In particular, this paper analyses the effect of vinyl flooring on the ...
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A study of the reproducibility and reliability of the musculo-articular stiffness of the ankle joint
(Elsevier, 2018-06)
The objective of this work was to evaluate the reproducibility, reliability and usefulness of the musculo-articular stiffness (MAS) of the ankle joint, measuring it by the free vibration technique. Seventeen (nine males ...
Artículo
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Theoretical and experimental analysis of the quasi-static and dynamic behaviour of the world's longest suspension footbridge in 2020
(Elsevier, 2022-02)
This work validates the simplified theoretical, analytical and numerical models used in the preliminary design stage of the 516 Arouca footbridge over the River Paiva (Portugal), the world's longest suspension footbridge. ...
Artículo
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Influencia de la distribución espacial de la excitación en la respuesta sísmica de puentes
(Asociación Española de Ingeniería Mecánica, 2002)
Se presenta un método general para estudiar la interacción dinámica suelo-estructura en la respuesta sísmica de puentes sometidos a una excitación sísmica con variabilidad espacial. Se ha desarrollado un modelo mixto de ...
Artículo
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Predicting failure load of a non-crimp fabric composite by means of a 3D finite element model including progressive damage
(Elsevier, 2019-10)
A mesoscopic scale 3D finite element model of its representative unit cell is used to study the progressive damage of a [0,90]n non-crimp fabric laminate under compressive loading. The tows of the unit cell have been ...
Artículo
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Failure initiation criterion in bonded joints with composites based on singularity parameters and practical procedure for design purposes
(Tailor & Francis, 2015)
Composite to metal adhesively bonded joints generates critical points where geometry and material properties change abruptly. These points (multimaterial corners) are potential locations for failure initiation. There exist ...
Artículo
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Steric Interference in Bilayer Graphene with Point Dislocations
(MDPI, 2019-07)
We present evidence of strong steric interference in bilayer graphene containing offset point dislocations. Calculations are carried out with Large-scale Atomic/Molecular Massively Parallel Simulator (LAMMPS) using the ...