Strength prediction of bonded assemblies using a coupled criterion under elastic assumptions: effect of material and geometrical parameters

Abstract : The prediction of the failure load of bonded joints is a major issue in order to increase the confidence in the design of such assemblies. The aim of this paper is to present a method to predict the strength of adhesive joints. The failure could be initiated if two criteria are fulfilled: (i) an energy criterion and (ii) a stress criterion. The computation of these two criteria is based on elastic calculations using a 2D finite element modelling and could thus be used in an industrial design office. The effects of different parameters are studied: material parameters (elastic properties of the adhesive, strength and toughness of the adhesive) and geometrical parameters (thickness of the adhesive, presence of a fillet, overlap length). Predictions are in good agreement with experimental results evidenced in literature.
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Journal articles
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https://hal.archives-ouvertes.fr/hal-00956851
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Submitted on : Friday, March 7, 2014 - 2:31:47 PM
Last modification on : Friday, December 13, 2019 - 10:42:09 AM

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A. Moradi, Nicolas Carrère, Dominique Leguillon, E. Martin, Jean-Yves Cognard. Strength prediction of bonded assemblies using a coupled criterion under elastic assumptions: effect of material and geometrical parameters. International Journal of Adhesion and Adhesives, Elsevier, 2013, 47, pp.73-82. ⟨10.1016/j.ijadhadh.2013.09.044⟩. ⟨hal-00956851⟩

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