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Adhesive property modification through addition of MWCNTs for dissimilar material joint applications

Lookup NU author(s): Maria Konstantakopoulou, Dr George Kotsikos


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© 2016, European Conference on Composite Materials, ECCM. All rights reserved. The influence on the bond strength of metal to composite joints through the modification of the adhesive properties by the addition of Multi-walled Carbon Nanotubes (MWCNTs) has been investigated. MWCNT/epoxy resin mixtures of different weight fractions, i.e. 0.1%, 0.3%, 0.5% and 1% were prepared and used for the bonding of dissimilar material joints. Pure epoxy resin was also used in order to obtain the properties of the reference material. Co-cured CFRP/Steel and GFRP/Aluminium single lap joints with three different overlap lengths i.e. 25, 40 and 60 mm were manufactured in order to determine how the joint strength is influenced by the increase of the overlap length and whether the MWCNT additives alter the failure mechanisms involved. The lap shear strength of both CFRP/Steel and GFRP/Aluminium single lap joints decreased with the increase of the overlap length for all MWCNT weight fractions. However, the incorporation of MWCNTs to the epoxy resin increased the lap shear strength of the joints when the overlap length was 25mm. For the case of CFRP/Steel joints, joint strength increased by 41% for 0.3 wt. % CNT and for 0.5 wt. % CNT, the lap shear strength of GFRP/Aluminium joints increased by 27%.

Publication metadata

Author(s): Konstantakopoulou M, Kotsikos G

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: ECCM 2016 - 17th European Conference on Composite Materials

Year of Conference: 2016

Online publication date: 30/06/2016

Acceptance date: 02/04/2016

Publisher: European Conference on Composite Materials, ECCM


Library holdings: Search Newcastle University Library for this item

ISBN: 9783000533877