Buscar en
Ciência & Tecnologia dos Materiais
Toda la web
Inicio Ciência & Tecnologia dos Materiais Effects of carbon nanotube modified adhesive layer on low velocity impact and fl...
Journal Information
Vol. 29. Issue 1.
Materiais 2015
Pages e97-e101 (January - April 2017)
Download PDF
More article options
Vol. 29. Issue 1.
Materiais 2015
Pages e97-e101 (January - April 2017)
DOI: 10.1016/j.ctmat.2016.04.008
Full text access
Effects of carbon nanotube modified adhesive layer on low velocity impact and flexural properties of cork core sandwich structures
I.A. Lopesa, F.P. Macedoa, A.J. Arteiroa, A.L. Reisa, P.R. Nóvoaa,b,
Corresponding author

Corresponding author.
, A.T. Marquesa
a Department of Mechanical Engineering, Faculty of Engineering, FEUP Campus, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal
b Composite Materials and Structures Research Unit, Institute of Science and Innovation in Mechanical and Industrial Engineering (INEGI) FEUP Campus, Rua Dr. Roberto Frias 400, 4200-465 Porto, Portugal
Article information

The traditional method of manufacturing sandwich structures using a structural adhesive to achieve face-sheets to core bonding maintains widespread use. Most research addressing experimental performance of sandwich structures focuses on core and face-sheet related parameters, and only marginal attention is directed to the mechanical properties of the thin, low content, adhesive layer – it usually suffices that it can provide effective face-sheet/core bonding. The present work studies sandwich structures with a cork agglomerate core and resin infusion processed skins consisting of +/-45° glass fibre fabric reinforced epoxy resin. A polyurethane structural adhesive was used to assemble the structure. The focus of the study was the influence on sandwich performance with respect to a modification of the adhesive with multiwall carbon nanotubes, exploring the possibility of an increase in both shear and adhesion strength of the modified adhesive. The sandwich structure was evaluated with respect to four-point bending and low velocity impact tests. In addition, scanning electron microscopy analysis was used to examine the adhesive layer morphology. The results were analysed to determine how the addition of ca. 0.4wt.% of carbon nanotubes to the adhesive effectively influenced failure behaviour and damage events in both flexural and impact testing.

Sandwich structure
carbon nanotube
cork core
flexural properties
low velocity impact
Full text is only aviable in PDF
S. Abrate.
Impact on Composite Structures.
Cambridge University Press, (1998),
X. Li, L.A. Carlsson.
J. Sandwich Struct. Mater, 1 (1999), pp. 60
S. Khan, H.Y. Loken, in: P. Joyce, A. Vizzini, S.W. Beckwith (Eds.), Proceedings of SAMPE lrsquo;07, Baltimore, MD, USA, CD-ROM, June 3-7, 2007.
A.J.C. Arteiro, A.L.M.A. Reis, Cork Cored Sandwich Structures – Damage Tolerance Evaluation, Composite Materials monography, Faculdade de Engenharia da Universidade do Porto, Porto, Portugal, December 2011.
A.J.C. Arteiro, A.L.M.A. Reis, P.J.R.O. Nóvoa, L.F.M. Silva, M. Zupan, A.T. Marques.
Cienc. Tecnol. Mater, 25 (2013), pp. 79
K.-T. Hsiao, J. Alms, S.G. Advani.
Nanotechnol., 14 (2003), pp. 791
S. Yu, M.N. Tong, G.W. Critchlow.
Mater. Des., 31 (2010), pp. S126
S.A. Sydlik, J.-H. Lee, J.J. Walish, E.L. Thomas, T.M. Swager.
Carbon, 59 (2013), pp. 109
F.P.B. Macedo, I.A.R. Lopes, Enhancement of Cork Core Sandwich Structures with CNT Modified Adhesives, Composite Materials monography, Faculdade de Engenharia da Universidade do Porto, Porto, Portugal, January 2013.
Copyright © 2017. Portuguese Society of Materials (SPM)
Article options
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

es en pt
Política de cookies Cookies policy Política de cookies
Utilizamos cookies propias y de terceros para mejorar nuestros servicios y mostrarle publicidad relacionada con sus preferencias mediante el análisis de sus hábitos de navegación. Si continua navegando, consideramos que acepta su uso. Puede cambiar la configuración u obtener más información aquí. To improve our services and products, we use "cookies" (own or third parties authorized) to show advertising related to client preferences through the analyses of navigation customer behavior. Continuing navigation will be considered as acceptance of this use. You can change the settings or obtain more information by clicking here. Utilizamos cookies próprios e de terceiros para melhorar nossos serviços e mostrar publicidade relacionada às suas preferências, analisando seus hábitos de navegação. Se continuar a navegar, consideramos que aceita o seu uso. Você pode alterar a configuração ou obter mais informações aqui.