Influence of Multiwall Carbon Nanotubes on Shearstrength of Single Lap Joint

This paper presents a comparison between strength of adhesively bonded single lap joint with and without addition of Multiwall Carbon Nanotubes(MWCNT) in adhesive. Shear strength analysis of adhesively bonded single lap joint is done applying pulling load which produces shear stress at overlap between two substrates which joined together by using adhesive. Al-Al substrates were used and as per ASTM standard single lap joints are prepared. Various specimens were prepared by changing overlap and thickness of substrates. Four tests were carried out for each specimen with change in overlap and thickness of Al-Al substrates with and without addition of MWCNT in adhesive. Araldite AW 106, Hardener HV 953 used as adhesive,it has various properties and  used as per their data sheet and processing given by respective company.

The result of the comparative strength analysis of adhesively bonded single lap joint is presented and on the basis of experimental observation it is clear that MWCNT filled epoxy resin gives higher bonding strength than unfilled epoxy resin bonded substrates