Development of an improved adhesive test method for composite assembly design

Type Article
Date 2005-03
Language English
Author(s) Cognard Jean Yves, Davies PeterORCID, Gineste B, Sohier L
Affiliation(s) ENSIETA, Lab Mecan Struct Navales, F-29806 Brest 09, France.
ENS, Antenne Bretagne, F-35170 Bruz, France.
IFREMER, Serv Mat & Struct, F-92980 Plouzane, France.
Univ Bretagne Occidentale, Lab Rheol & Mecan Struct, F-29285 Brest, France.
Source Composites Science and Technology (0266-3538) (Elsevier), 2005-03 , Vol. 65 , N. 3-4 , P. 359-368
DOI 10.1016/j.compscitech.2004.09.008
WOS© Times Cited 65
Keyword(s) Finite element analysis, Adhesion
Abstract This study is concerned with improving performance of composite structures through the use of adhesive bonding, particularly for marine and underwater applications. Some preliminary results from tests on simple composite/composite assemblies are given first. Difficulty in modelling the failure of even these simple joints highlighted the need for more reliable constituent input data. The first objective was to define an experimental methodology enabling the adhesives of interest to be characterised up to failure. A metal metal assembly was considered, in order to concentrate on the analysis of the behaviour of thin adhesive films. The aims were to characterise the adhesive, analyse its non-linear behaviour, and study the influence of parameters such as film thickness and manufacturing conditions. In order to be able to study the behaviour of the adhesive as a function of the normal stress component, an important parameter, a modified Arcan fixture has been developed, which enables compression or tension to be combined with shear loads. First results from this fixture are presented, together with analysis of sources of scatter in results.
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