covid
Buscar en
Ciência & Tecnologia dos Materiais
Toda la web
Inicio Ciência & Tecnologia dos Materiais A study of mixed mode interlaminar fracture on nanoclay enhanced epoxy/glass fib...
Información de la revista
Vol. 25. Núm. 2.
Páginas 92-97 (julio - diciembre 2013)
Compartir
Compartir
Descargar PDF
Más opciones de artículo
Vol. 25. Núm. 2.
Páginas 92-97 (julio - diciembre 2013)
Acceso a texto completo
A study of mixed mode interlaminar fracture on nanoclay enhanced epoxy/glass fiber composites
Visitas
1493
H. Silvaa,
Autor para correspondencia
heni@demgi.estv.ipv.pt

Corresponding author.
, J.A.M. Ferreirab, J.D.M. Costab, C. Capelac
a Mechanical Engineering Department, ESTG, Polytechnic Institute of Viseu, Campus Politécnico, 3510 Viseu, Portugal
b CEMUC, Mechanical Engineering Department, University of Coimbra, Rua Luís Reis Santos 3030-788, Coimbra, Portugal
c Mechanical Engineering Department, ESTG, Polytechnic Institute of Leiria, Morro do Lena - Alto Vieiro, 2400-901 Leiria, Portugal
Este artículo ha recibido
Información del artículo
Resumen
Bibliografía
Descargar PDF
Estadísticas
Abstract

Fiber reinforced laminate are widely used in aerospace, automobile and marine industries, despite its poor interlaminar fracture toughness (IFT), as consequence of the absence of fibers to sustain transverse load. One way recently explored with relative success in order to improve IFT is the use of nanoparticles to reinforce the matrix. Present paper intends to assess and discuss the fracture toughness on mixed mode loading of fiber glass mats/nanoclay enhanced epoxy matrix laminates. The matrix used was the epoxy resin Biresin® CR120 combined with the hardener CH120-3, the fiber glass was triaxial mats ETXT 450 and the nanoparticles were montmorillonite nanoclay (NC). The results were discussed in order to understand the effects of the percentage of nanoclay and the shear load quantified in terms of the GII/GI ratio on the total fracture toughness G. The incorporation of a small quantity of NC into matrices improves significantly mixed-mode IFT for all loading mode ratios GII/G. The total fracture toughness G increases with the mode II loading component and a linear mixed-mode fracture criteria reproduces the Gc against GII/G relationship.

Keywords:
composite materials
nanoparticles
mixed mode
interlaminar fracture toughness
El Texto completo está disponible en PDF
References
[1]
J.R. Reeder, J.H. Crews.
J. AIAA, 28 (1990), pp. 1270
[2]
M.L. Benzeggagh, M. Kenane.
Compos. Sci. Technol, 56 (1996), pp. 439
[3]
S. Hashemi, A.J. Kinloch, J.G. Williams.
J. Comp. Mater, 24 (1990), pp. 918
[4]
N.H.M. Zulfli, C.W. Shyang.
J. Phys. Sci, 21 (2010), pp. 41
[5]
A.J. Kinloch, A.C. Taylor.
J. Mater. Sci Lett, 22 (2003), pp. 1439
[6]
M. Quaresimin, M. Salviato, M. Zappalorto.
Eng. Fract. Mechan, 81 (2012), pp. 80
[7]
M. Kim, Y.B. Park, O.I. Okoli, C. Zhang.
Compos. Sci. Technol, 69 (2009), pp. 335
[8]
Z. Fan, M.H. Santari, S.G. Advani.
Compos Pt. A: Appl Sci. Manuf, 39 (2008), pp. 540
[9]
S.S. Wicks, R.G. Villoria, B.L. Wardle.
Compos. Sci. Technol, 70 (2010), pp. 20
[10]
M.H.G. Wichmann, J. Sumfleth, F.H. Gojny, M. Quaresimin, B. Fiedler, K. Schulte.
Eng. Fract. Mech, 73 (2006), pp. 2346
[11]
J.R. Reeder.
Ed. ASTM Int, 11 (1993), pp. 303
[12]
ASTM D6671/D6671M, Standard Test Method for Mixed Mode I-Mode II Interlaminar Fracture Toughness of Unidirectional Fiber Reinforced Polymer Matrix Composites (2013).
Copyright © 2014. Sociedade Portuguesa de Materiais (SPM)
Opciones de artículo
es en pt

¿Es usted profesional sanitario apto para prescribir o dispensar medicamentos?

Are you a health professional able to prescribe or dispense drugs?

Você é um profissional de saúde habilitado a prescrever ou dispensar medicamentos