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Mostrando ítems 11-19 de 19
Tesis Doctoral
Study of the Behaviour of Non-Crimp Fabric Laminates by 3D Finite Element Model
(2012)
The aerospace industry is committed to improving the performance of aircraft whilst reducing emissions and weight. Part of this goal can be achieved with the use of new types of composite materials, such as non-crimp fabric ...
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
Evaluation of interfacial fracture toughness and friction coefficient in the single fiber fragmentation test
(Elsevier, 2011)
Single fiber fragmentation test is extensively employed to characterize the fiber-matrix interface in composites. A novel technique for evaluating fracture toughness and friction coefficient at the fiber-matrix interface ...
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 ...
Tesis Doctoral
Study of the unfolding failure of curved composite laminates.
(2017-10-30)
The use of composite materials in structural applications has been considerably increased in the last years. This increment has introduced the use of composite laminates in complex components including highly curved zones. ...
Artículo
Analysis of a Crack in a Thin Adhesive Layer between Orthotropic Materials: An Application to Composite Interlaminar Fracture Toughness Test
(Tech Science Press, 2010)
The problem of a crack in a thin adhesive layer is considered. The adherents may have orthotropic elastic behavior which allows composite laminates to be modeled. In the present work a linear elastic-brittle constitutive ...
Ponencia
Modelos analíticos y numéricos para la predicción del fallo por unfolding en vigas de material compuesto
(AEMAC (Asociación Española de Materiales Compuestos), 2013-07)
El fallo por unfolding en vigas de pared delgada fabricadas con materiales compuestos es un fallo que viene preconizado por componentes del estado tensional que no se consideran en los modelos de cálculo de barras y ...