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Comparación experimental de la tenacidad a fractura transversal de laminados unidireccionales correspondientes al crecimiento longitudinal o transversal de grietas

Authors: Cepero, F.; García García, Israel; Justo Estebaranz, Jesús; Mantic, Vladislav; París Carballo, Federico; Barroso Caro, Alberto;

Comparación experimental de la tenacidad a fractura transversal de laminados unidireccionales correspondientes al crecimiento longitudinal o transversal de grietas

Abstract

El objetivo del trabajo es determinar y comparar, en laminados unidireccionales, las tenacidades a fractura transversal correspondientes a dos direcciones de crecimiento de grieta, paralela (GIcpar) y perpendicular (GIcperp) a las fibras. Con este propósito, se han diseñado y fabricado dos tipos de probetas para el ensayo de flexión a tres y cuatro puntos, con dimensiones iguales pero con distintas orientaciones de fibras con respecto a la grieta inicial. La principal dificultad encontrada durante la fabricación ha sido la generación de grietas. En este artículo se describen las diferentes técnicas implementadas para la generación de las grietas y los problemas encontrados. Los resultados muestran que los valores de la tenacidad para ambas direcciones de propagación son cercanos, detectándose un valor ligeramente más alto cuando la dirección de propagación es paralela a la fibra.

XI CONGRESO NACIONAL DE MATERIALES COMPUESTOS. Celebrado en Móstoles los días 6, 7 y 8 de julio de 2015

Ministerio de Economía y Competitividad MAT2012-37387

Fondo Europeo de Desarrollo Regional MAT2012-37387

Ministerio de Ciencia e Innovación MAT2009-14022

Ministerio de Educación FPU 2009/3968

Fondo Social Europeo P08- TEP-4051

Junta de Andalucía P08- TEP-4051

Country
Spain
Keywords

Laminados unidireccionales, Tenacidad a fractura transversal

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green