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A study of the non-linear behaviour of adhesively-bonded composite assemblies ArchiMer
Cognard, Jean Yves; Davies, Peter; Sohier, S; Creac' Hcadec, R.
The objective of this study is to define a reliable tool for dimensioning of adhesively bonded assemblies, particularly for marine and underwater applications. This paper presents experimental and numerical results, which describe the non-linear behaviour of an adhesive in a bonded assembly for various loadings. A modified Arcan fixture, well-suited for the study of the behaviour of bonded metal-metal assemblies, was developed in order to focus on the analysis of the behaviour of the adhesive in thin films. The edge effects are minimised by using an appropriate design of the substrates so that experimental results give reliable data. To analyze the kinematics of the deformation of the adhesive joint non-contact extensometry techniques were employed. Thus,...
Tipo: Text Palavras-chave: Non linear behaviour; Finite element; Arcan fixture; Marine structures; Composite; Adhesion.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/publication-2079.pdf
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Investigating the fracture behavior of adhesively bonded metallic joints using the Arcan fixture ArchiMer
Stamoulis, G.; Carrere, N.; Cognard, J. -y.; Davies, Peter; Badulescu, C..
In the present study, the fracture behavior of a crash optimized adhesive was examined by means of the Arcan fixture. The specimens were prepared using substrates of Aluminum 2017 A and two pre-cracks (one per each extremity of the joint) were created. The section of the substrates has been specially designed to stabilize crack propagation. The thickness of the adhesive layer was fixed at 0.5 mm. The tests were performed in the mixed mode I/II plane and under compression/shear load, at a speed of 0.5 mm/min. To avoid measuring the crack length during the experiments, an alternative methodology to calculate the fracture toughness is proposed. The results are in good accordance with previously published data on the same adhesive using “classical” TDCB...
Tipo: Text Palavras-chave: Arcan fixture; Structural adhesives; Linear Elastic Fracture Mechanics; Fracture toughness; Finite element analysis.
Ano: 2016 URL: http://archimer.ifremer.fr/doc/00308/41956/41219.pdf
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