Stresses in a standard metal-to-metal adhesive-bonded lap joint are analysed by a two-dimensional finite-element method and comparisons are made with previous analyses. Particular attention is paid to the stresses at the ends of the adhesive layer. Unlike previous work, which assumes the adhesive to have a square edge, the adhesive spew is treated as a triangular fillet. The highest stresses exist at the adherend corner within the spew. Linear elastic behaviour is assumed throughout.
A rubber model is reported which confirms these results physically.
Good agreement was also obtained between some practical results and the finite-element predictions.
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References
1.
VolkersenO.‘Die Nietkraftverteilung in Zugbeanspruchten Nietverbindungen mit Konstanten Laschenquerschnitten’, Luftfarhtforschung193815, 41–7.
2.
DemarklesL. R.‘Investigation of the use of a rubber analog in the study of stress distribution in riveted and cemented joints’, Tech. Notes natn. advis. Comm. Aeronaut., Wash. 34131955.
3.
AdamsR. D.PeppiattN. A.‘Effect of Poisson's ratio strains in adherends on stresses of an idealized lap joint’, J. Strain Analysis19738, 134–9.
4.
GolandM.ReissnerE.‘Stresses in cemented joints’, J. appl. Mech., Trans. Am. Soc. mech. Engrs194466, A17–A27.
5.
SneddonI.‘The distribution of stress in adhesive joints’, Adhesives (Ed. EleyD.) 1961 chapter 9 (Oxford University Press).
6.
KuenziE. W.StevensG. H.‘Determination of the mechanical properties of adhesives for use in the design of bonded joints’, U.S. Forest Products Laboratory Report FPL-011, 1963.
7.
VolkersenO.‘Recherches sur la théorie des assemblages colles’, Construction métalliaue1965 (No. 4), 3–13.
8.
CokerE. C.‘An optical determination of the variation of stress in a thin rectangular plate subjected to shear’, Proc. R. Soc. Series A 1912, 86, 291–319.
9.
InglisC. E.‘Stress distribution in a rectangular plate having two opposing edges sheared in opposite directions’, Proc. R. Soc. Series A 1923, 103, 598–610.
10.
MylonasC.‘Experiments on composite models with application to cemented joints’, Proc. Soc. expl Stress Analysis195412, 129–42.
11.
WooleyG. R.CarverD. R.‘Stress concentration factors for bonded lap joints’, J. Aircr.19718, 817–20.
12.
HarrisonN. L.HarrisonW. J.‘The stresses in an adhesive layer’, J. Adhesion19723, 195–212.
13.
AdamsR. D.ChambersS. H.Del StrotherP. J. A.PeppiattN. A.‘Rubber model for adhesive lap joints’, J. Strain Analysis19738, 52–7.
14.
BennettW. F.‘Non-destructive testing of adhesive bonding’, Paper presented at the 9th Annual Conference on Non-Destructive Testing, Loughborough University, 1972.
15.
SemerdjievS.Metal to metal adhesive bonding, 1970 (Business Books, London).
16.
NiranjanV.Bonded joints — a review for engineers, 1970 UTIAS Review No. 28 (University of Toronto).
