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Mostrando ítems 1-10 de 10
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
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
Modeling of interface cracks in a composite with a fibre bundle under biaxial transverse loads
(Grupo Español de Fractura, 2013)
En el presente trabajo se presenta un estudio numérico, donde se caracteriza el inicio y crecimiento de los despegues producidos en las interfases entre fibra y matriz en un material compuesto sometido a cargas transversales ...
Artículo
Study of transversal and delamination cracks in [0/90] symmetric laminates by means of the linear elastic brittle interface formulation
(Grupo Español de Fractura, 2012)
En el presente trabajo se estudia el inicio y crecimiento de grietas transversales y de delaminación en laminados simétricos [0/90], bajo cargas de tracción en la dirección de las fibras en las láminas externas. El ...
Ponencia
PGD analysis of the heating of a composite laminate during ultrasonic compaction
(Asociación Española de Materiales Compuestos (AEMAC), 2013-07)
Compaction of composite layers just after placing them is a key requirement for the new out-of-autoclave in-situ curing techniques. A solution proposed for this task is the use of ultrasonic compactors. In fact, the ...
Artículo
Modelling the waviness of the fibres in non-crimp fabric composites using 3D finite element models with straight tows
(Elsevier, 2014-01)
A new approach to efficiently model the waviness of the fibres in non-crimp fabric (NCF) composites using mesoscale 3D finite element (FE) models with straight tows is presented. This approach omits the geometric curvature ...
Artículo
Three dimensional finite element study of the behaviour and failure mechanism of non-crimp fabric composites under in-plane compression
(Elsevier, 2016-08)
The compressive behaviour and the mechanism responsible for failure of a [0,90]n non-crimp fabric (NCF) laminate are studied using a 3D finite element (FE) model of the representative unit cell at the mesoscopic scale. The ...
Artículo
Fatigue crack initiation and damage characterization in Brazilian test specimens for adhesive joints
(Taylor & Francis, 2014)
The present study is focused on the fatigue failure initiation at bimaterial corners by means of a configuration based on the Brazilian disc specimens. These specimens were previously used for the generalized fracture ...
Artículo
Determination of Generalized Fracture Toughness in composite multimaterial closed corners with two singular terms - Part II: Experimental results
(Elsevier, 2012-07)
In this paper the experimental part of the procedure for the Generalized-Fracture-Toughness determination in multimaterial closed corners with two stress singularities is presented. The so-called Generalized-Fracture-Toughness ...