Experimental and numerical analyses of the mechanical behavior of bonded joints can be made particularly difficult by the influence of edge effects. Therefore, understanding the stress distribution in an adhesive joint can lead to improvements in adhesively-bonded assemblies. Such an analysis is proposed in the case of usual single lap shear specimens. Stress singularities can contribute to the initiation and propagation of cracks in the adhesive. Thus, in order to obtain reliable experimental data to analyze the nonlinear behavior of an adhesive in an assembly, tests which strongly limit the influence of stress singularities must be proposed. The design and the abilities of such a device for shear tests are presented. Moreover, some experimental results obtained using a modified Arcan fixture, which has been designed to strongly limit edge effects, are presented in the case of monotonic and complex history loadings. Furthermore, a 2D non associated elasto-visco-plastic model is proposed to accurately describe the experimental behavior under tensile-shear monotonic loadings. An extension of this model is also proposed to represent relaxation type effects under shear loadings.
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July 2011
Multi-Physics Approaches For The Behavior Of Polymer-Based Materials
Strategies for the Analysis of the Behavior of an Adhesive in Bonded Assemblies
Romain Créac’hcadec,
Romain Créac’hcadec
Laboratoire Brestois de Mécanique et des Systèmes, ENSTA Bretagne, Université de Brest, ENIB, Université Européenne de Bretagne
, ENSTA Bretagne, 2 rue François Verny, 29806 Brest, France
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Laurent Sohier
Laurent Sohier
Laboratoire Brestois de Mécanique et des Systèmes, ENSTA Bretagne, Université de Brest, ENIB, Université Européenne de Bretagne, Université de Brest
, 6 Av. Le Gorgeu, CS 93837, 29285 Brest Cedex, France
Search for other works by this author on:
Romain Créac’hcadec
Laboratoire Brestois de Mécanique et des Systèmes, ENSTA Bretagne, Université de Brest, ENIB, Université Européenne de Bretagne
, ENSTA Bretagne, 2 rue François Verny, 29806 Brest, France
Laurent Sohier
Laboratoire Brestois de Mécanique et des Systèmes, ENSTA Bretagne, Université de Brest, ENIB, Université Européenne de Bretagne, Université de Brest
, 6 Av. Le Gorgeu, CS 93837, 29285 Brest Cedex, France
J. Eng. Mater. Technol. Jul 2011, 133(3): 030906 (9 pages)
Published Online: July 5, 2011
Article history
Received:
May 9, 2010
Revised:
March 10, 2011
Online:
July 5, 2011
Published:
July 5, 2011
Citation
Yves Cognard, J., Créac’hcadec, R., and Sohier, L. (July 5, 2011). "Strategies for the Analysis of the Behavior of an Adhesive in Bonded Assemblies." ASME. J. Eng. Mater. Technol. July 2011; 133(3): 030906. https://doi.org/10.1115/1.4004049
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