Influence Of Edge Effects On The Load
Transmitted By Adhesively-bonded Assemblies
Author(s)
R. Créac’hcadec, L. Sohier, J. Y. Cognard & B. Gineste
Abstract
This paper presents a contribution to the influence of edge effects on the load
transmitted by adhesively-bonded assemblies. Bonded assemblies are mostly
characterized by the presence of stress concentrations at the bottom of the
adhesive and in its thickness near the interface. This phenomenon, called edge
effects, plays a very important role in the macroscopic observed behaviour of an
adhesive in an assembly. Thus, to describe its behaviour it is necessary to
propose solutions to reduce the edge effects for the bonded test specimens used
to characterize the adhesive and for industrial applications. Mastering edge
effects improves the efficiency of bonded parts and reduces the dispersions of the
loads at failure. In the first part a modified Arcan test fixture is described to
analyze the behaviour of an adhesive in an assembly under traction-shear
loadings. The test specimens use a specific geometry to reduce the edge effects
(beaks). In the second part, edge effects are analyzed by the finite element
method under elastic hypothesis. In the third part, experimental results for
traction-shear Arcan tests are presented. And finally, this method to reduce edge
effects is applied to the bonding of a rail on a composite mast for high
competitive sailing boats.
Keywords: adhesive joint, edge effects, finite element analysis, experimental
results, joint design.
1 Introduction
This study is concerned with increasing the performance of adhesively bonded
assemblies which offer many advantages. But the experimental and numerical
Keywords
adhesive joint, edge effects, finite element analysis, experimental
results, joint design
Related Book
Other papers in this volume
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