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Mostrando ítems 1-10 de 28
Artículo
Closed-form methodology for stress analysis of composite plates with cutouts and non-uniform lay-up
(Elsevier, 2019-03)
This study aims to develop a closed-form methodology for estimating the resultant forces in a finite composite plate, weakened by the presence of elliptical cutouts, under membrane loads. Following an innovative approach, the ...
Artículo
The effect of frequency on tension-tension fatigue behavior of unidirectional and woven fabric graphite-epoxy composites
(Taylor & Francis, 2019-09)
In this paper, the effect of different values of load frequency on the evolution of the stress versus number of cycles to failure curve for a graphite-epoxy composite is studied. Two types of materials have been considered: ...
Artículo
Fiber Bragg grating application to study an unmanned aerial system composite wing
(SAGE Publications, 2019-05)
Structural health monitoring consists of structural integrity assessment by means of data acquisition and analysis from on-board sensors. Fiber Bragg grating–based monitoring is increasingly attracting the scientific ...
Artículo
A 2.5D time-frequency domain model for railway induced soil-building vibration due to railway defects
(Elsevier, 2019-05)
A new hybrid time-frequency modelling methodology is proposed to simulate the generation of railway vibration caused by singular defects (e.g. joints, switches, crossings), and its propagation through the track, soil and ...
Artículo
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 ...
Artículo
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
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 ...
Artículo
Effect of the end cross beams on the railway induced vibrations of short girder bridges
(Elsevier, 2019-12-15)
This work is devoted to the analysis of the railway-induced vertical vibrations of simply-supported double track bridges composed by pre-stressed concrete girder decks. Despite the low torsional stiffness that this particular ...
Artículo
On the formulation of a BEM in the Bézier–Bernstein space for the solution of Helmholtz equation
(Elsevier, 2019-10)
This paper proposes a novel boundary element approach formulated on the Bézier-Bernstein basis to yield a geometry-independent field approximation. The proposed method is geometrically based on both computer aid design ...
Artículo
Lead-free piezocomposites with CNT-modified matrices: Accounting for agglomerations and molecular defects
(Elsevier, 2019-09)
Piezoelectric matrix-inclusion composites based on lead-free ceramics have attracted attention due to the possibility of manufacturing environmentally friendly devices using scalable emerging technologies such as 3D printing. ...