Structural adhesive bonding for marine applications

Koh Chun Li, Julie (1997) Structural adhesive bonding for marine applications. MSc(R) thesis, University of Glasgow.

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Abstract

In this present study, four cold curing adhesives, namely, F241, Redux 420, Araldite 2013 and XD 4416 were evaluated for bonding steel tapered double cantilever beams (TDCB) specimens. Fracture toughness of the adhesives were compared and evaluated at temperature range of -40 °C to 60 °C. From the results obtained, F241 bonded joints exhibited the best fracture strength at ambient temperature. Relatively good results were achieved at both high and lower temperature compared to Araldite 2013 and XD4416. It was also observed that XD4416 must be post cured in order to exhibit its full strength. Fatigue tests in a 'dry' environment were also performed on the bonded joints. R ratio ranging from 0.13 to 0.17 was studied. From the results it is clear that R ratio and maximum load is of considerable importance in influencing fatigue crack growth rate. Fatigue crack growth rate was observed to undergo a number of transitions in a nominally constant compliance test piece subjected to constant load ranges. The joint fracture strength was improved by incorporating primers. Two primers namely Permabond SIP and A-187 were studied on F241 bonded joints. Since SIP is recommend for F241 by the manufacturer, the highest strength was obtained. Relatively high fracture strength was also obtained with a 5% solution of A-187, in water.

Item Type: Thesis (MSc(R))
Qualification Level: Masters
Additional Information: Adviser: M J Cowling
Keywords: Materials science, Naval engineering
Date of Award: 1997
Depositing User: Enlighten Team
Unique ID: glathesis:1997-71572
Copyright: Copyright of this thesis is held by the author.
Date Deposited: 10 May 2019 14:14
Last Modified: 10 May 2019 14:14
URI: http://theses.gla.ac.uk/id/eprint/71572

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