Simulation of single-lap bonded and hybrid (bolted/bonded) joints with flexible adhesive

Hoang-Ngoc, Cat-Tan; Paroissien, Éric

doi:10.1016/j.ijadhadh.2009.12.002

Cited by 84 publications

(36 citation statements)

References 9 publications

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“…It is understandable then how mechanical fixings in hybrid joints have been shown to have poor load transfer, although it could be argued that the region of adhesive in the middle of a plain bonded lap joint is equally underutilised. For this reason, it has been suggested that relatively compliant adhesives should be used in hybrid joints to improve load sharing with the fasteners [3,9], but often the desire of the end-user is to improve the properties of an adhesive joint, not to 'get a hybrid joint to work' by compromising the adhesive, or merely create a sealed, fastened joint.…”

Section: A Brief Review Of Hybrid Joint Technology 21 Bonded/bolted mentioning

confidence: 99%

The development and scalability of a high strength, damage tolerant, hybrid joining scheme for composite–metal structures

Graham

Rezai

Baker

et al. 2014

Composites Part A: Applied Science and Manufacturing

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Section: A Brief Review Of Hybrid Joint Technology 21 Bonded/bolted mentioning

confidence: 99%

The development and scalability of a high strength, damage tolerant, hybrid joining scheme for composite–metal structures

Graham

Rezai

Baker

et al. 2014

Composites Part A: Applied Science and Manufacturing

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“…On the one hand, the industry is determined to be able to replace mechanical assemblies with adhesive-bonded ones in order to lighten the structures and on the other hand mixed assemblies (screwed/ adhesive-bonded) have been developed and studied [6]. Whatever the chosen (bonded or mixed structures) is, a wide range of tests has been developed in view of providing tools for measuring the adherence of adhesives.…”

Section: Introductionmentioning

confidence: 99%

Using the 3-point bending method to study failure initiation in epoxide-aluminum joints

Sauvage

Aufray

Jeandrau

et al. 2017

International Journal of Adhesion and Adhesives

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OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. This is an author-deposited version published in : http://oatao.univ-toulouse.fr/ Eprints ID : 17849 A B S T R A C TThe increasing use of adhesives in industry has boosted the search for tests which allow the adherence level to be defined. These tests, depending on the type of load, examine different stresses, failure modes and mixed modes. Furthermore, these tests can be focused either on initiation or propagation of adhesive failure. The subject of this study is the initiation of adhesive failure. The initiation of failure can be determined with the 3-point bending test. Trials of 3-point bending tests were conducted on an aluminum 2024 substrate, with two different thicknesses, in order to understand the impact of the adherend thickness. The aluminum substrate received different types of surface pre-treatment: acetone cleaning, hydrochloric acid etching or aminopropyltriethoxysilane coating. Two adhesives were used: the first one was a mixture of epoxy pre-polymer DGEBA and DETA amine, whereas the second was a commercially formulated adhesive, ELECOLIT 6604. The initiation of adhesive failure was obtained by 3-point bending test and verified with SEM analysis. The failure loads measured enabled the effect of surface treatment on adhesive failure to be revealed: the results indicate that the surface treatment with silane is the most efficient in comparison to hydrochloric acid etching and of course to the simple acetone degreasing. It was assumed that the scatter of the results obtained for each series is due to the variation of the "intrinsic" adherence between the adhesive and the substrate. Furthermore, it was noted that the failure loads for different substrate thicknesses cannot be compared due to the effect of the thickness: it was therefore not possible to simply compare results obtained for different thicknesses of the same substrate for a given substrateadhesive system. The energy approach proposed in this study makes it possible. The energy requested to initiate the adhesive failure for a given system can then be known, whatever the initial geometry of the 3-point bending test is. However, it was also shown that the thickness of the substrate must be correctly chosen. A thick substrate increases the dispersion and a thin substrate may induce local unwelcome plastic strain. In conclusion, this study allows to define an energy criteria for adhesives failure initiation.

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“…FEA of adhesive joints showed that the presence of lateral clamping can significantly reduce the maximum peel stress at the adhesive-substrate interface. Balanced single-lap bonded and bolt-bonded hybrid joints with flexible adhesives were studied by Hoang-Ngoc and Paroissien [67] using the FEA. Flexible adhesives were modelled using hyperelastic MooneyRivlin potentials.…”

Section: Hybrid Jointsmentioning

confidence: 99%

Fatigue Behaviour of Fastening Joints of Sheet Materials and Finite Element Analysis

Ball

2013

Advances in Mechanical Engineering

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Some fastening techniques such as self-piercing riveting, mechanical clinching, and structural adhesive bonding are efficient joining methods which are suitable for joining advanced lightweight sheet materials that are hard to weld. The recent literature relating to fatigue behavior of such fastening joints and finite element analysis is reviewed in this paper. The recent development in fatigue behavior analysis of the fastening joints is described with particular reference to some major factors that influence the fatigue behavior of the fastening joints: failure mechanism, environmental effects, and hybrid joining techniques. The main methods used in finite element analysis of fatigue behavior of the fastening joints of sheet materials are discussed and illustrated with brief case studies from the literature.

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Simulation of single-lap bonded and hybrid (bolted/bonded) joints with flexible adhesive

Cited by 84 publications

References 9 publications

The development and scalability of a high strength, damage tolerant, hybrid joining scheme for composite–metal structures

The development and scalability of a high strength, damage tolerant, hybrid joining scheme for composite–metal structures

Using the 3-point bending method to study failure initiation in epoxide-aluminum joints

Fatigue Behaviour of Fastening Joints of Sheet Materials and Finite Element Analysis

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