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Integrated experimental schemes for bonded patch repairs to notched aluminium-alloy panels based on static and fatigue strength concepts

Record type: Article

This paper seeks to outline an experimental screening procedure for a bonded composites patch repair scheme for cracked aluminum-alloy panels based on static and fatigue strength concepts. The materials used in this investigation comprised LY12 aluminum-alloy as a substrate, SY-24C as the adhesive system and T300/3234, G803/3242 and SW220/2322 fibre/epoxy prepregs as the patch materials. Static and fatigue behaviour of the specimens with serious patch materials and thicknesses was investigated experimentally. The experiments showed that the effects of repair of a notched panel with an asymmetric composite patch on the static strength and fatigue life of the repaired panel vary depending on the thicknesses of the patch and the fibre/epoxy prepreg materials. Because of the reduction of stress concentration caused by repairing, there is an improvement in the residual strength of the repaired specimens; thus the tensile residual strengths of repaired specimens are greater than those of un-repaired notched specimens.

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Citation

Xiong, J.J. and Shenoi, R.A. (2008) Integrated experimental schemes for bonded patch repairs to notched aluminium-alloy panels based on static and fatigue strength concepts Composite Structures, 83, (3), pp. 266-272. (doi:10.1016/j.compstruct.2007.04.019).

More information

e-pub ahead of print date: 4 May 2007
Published date: May 2008
Organisations: Engineering Mats & Surface Engineerg Gp, Fluid Structure Interactions Group

Identifiers

Local EPrints ID: 50083
URI: http://eprints.soton.ac.uk/id/eprint/50083
ISSN: 0263-8223
PURE UUID: 9d1a4d18-2e8b-4844-85ac-db21cac7d40e

Catalogue record

Date deposited: 22 Jan 2008
Last modified: 17 Jul 2017 14:54

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