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Mostrando ítems 1-10 de 20
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
Characterization of 3D printed long fibre reinforced composites
(Elsevier, 2018-02)
Additive Layer Manufacturing (ALM) process is used in the present investigation to manufacture long fibre reinforced composite parts using the MarkOne® 3D-printer. In ALM, a continuous filament (including a tow of fibres) ...
Artículo
Microscopical observations of interface cracks from inter-fibre failure under compression in composite laminates
(Elsevier, 2018-07)
Matrix/inter-fibre failure is characterized by the appearance at the fibre–matrix interfaces of small debonds that can progress along them until reaching a certain extension, then changing their orientation to kink towards ...
Artículo
Experimental mechanical characterization of composite-concrete joints
(Elsevier, 2018-12)
The use of composite materials as a reinforcement for concrete in civil construction has become a significant topic, the quality of the joint between composite and concrete being one of the key parameters to study. The ...
Artículo
On the optimal choice of fibre orientation angle in off-axis tensile test using oblique end-tabs: Theoretical and experimental studies
(Elsevier, 2019-07)
Shear strength evaluation in composite materials still remains a not fully solved problem. One of most promising proposals to characterise a material in shear by means of a simple tensile test is the off-axis tension test ...
Ponencia
Modelling ultrasonic debulking of tape lamination
(AEMAC (asociación española de materiales compuestos), 2009)
A numerical model is presented, which has been developed to study the quality of the ultrasonic debulking of a composite laminate. The quality of the debulking level will depend, primarily, of the temperature raised in ...
Tesis Doctoral
Modelling the compaction of composite materials with ultrasonic vibrations
(2014-09-29)
Los sistemas usuales de fabricación de materiales compuestos, especialmente aquellos empleados en la industria aeronáutica, conllevan un gran número de procesos secundarios, la mayoría de ellos no automatizados. Por esta ...
Artículo
Transverse biaxial tests on long fibre reinforced composites
(Elsevier, 2022-10-01)
The study and prediction of the failure mechanisms affecting long fibre reinforced composites is a fundamental field that provides an essential knowledge for the structural design with composites. Transverse failure, ...
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 ...
Ponencia
Estudio experimental de placas preconformadas en postpandeo
(Asociación Española de Materiales Compuestos (AEMAC), 2015-07)
El pandeo de placas y láminas no necesariamente está asociado al colapso, que en ocasiones se produce para una carga que es varias veces superior. No obstante, aprovechar esta capacidad postpandeo no es fácil, siendo el ...