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Mostrando ítems 1-10 de 57
Artículo
Design for a cruciform coupon used for tensile biaxial transverse tests on composite materials
(Elsevier, 2017-06)
This paper focuses on the design of the appropriate geometry for cruciform coupons conceived to be tested under tensile biaxial transverse loads. To this end, Finite Element models were developed and their results were ...
Ponencia
Análisis de la capacidad postpandeo de un panel rigidizado ante cargas de presión
(Asociación Española de Materiales Compuestos (AEMAC), 2013-07)
En esta publicación se resumen los resultados obtenidos en el análisis experimental y numérico de un panel rigidizado cilíndrico ante cargas de presión superiores a la carga critica a la que se produce la inestabilidad ...
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: ...
Ponencia
Análisis de postpandeo de un panel rigidizado de material compuesto mediante técnicas de modelado multi-global-local incluyendo daño interlaminar
(Asociación Española de Materiales Compuestos (AEMAC), 2015-07)
El uso de paneles rigidizados de material compuesto ha sido incorporado en numerosas aplicaciones. En las situaciones en las que las cargas originan estados tensionales de compresión, éstas pueden producir fenómenos de ...
Tesis Doctoral
Study of the stress state and failure in adhesive joints with composite materials.
(2012-04-16)
Con la creciente demanda de los materiales compuestos por parte de la industria, las uniones adhesivas se destacan como una atractiva alternativa frente a las tradicionales uniones mecánicas, que exigen como paso ...
Artículo
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 ...
Ponencia
In-plane shear behaviour of non-crimp fabric laminates by means of 3D finite element analysis
(2013-09)
In order to characterize the in-plane shear behaviour of NCF laminates, experimental off-axis tensile tests of [+45,-45]2S laminates in different loading directions (parallel to the stitching yarns: warp-SP and normal ...
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
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 ...