On the analysis of adhesively bonded structures: A high order semi-elastic adhesive layer model

Radice, Joshua; Vinson, Jack R.

doi:10.1016/j.compscitech.2007.06.024

Cited by 26 publications

(22 citation statements)

References 22 publications

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“…Restraining and loading conditions are visible in Fig. 3, consisting in clamping the joint at one of its edges and restraining vertically on the opposite edge, to faithfully reproduce the testing conditions [37,38], while this same edge is under a prescribed displacement (δ; Fig. 3).…”

Section: Numerical Analysismentioning

confidence: 99%

Strength Improvement of Adhesively-Bonded Joints Using a Reverse-Bent Geometry

Campilho

Pinto²,

Banea

et al. 2011

Journal of Adhesion Science and Technology

109

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Adhesive bonding of components has become more efficient in recent years due to the developments in adhesive technology, which has resulted in higher peel and shear strengths, and also in allowable ductility up to failure. As a result, fastening and riveting methods are being progressively replaced by adhesive bonding, allowing a big step towards stronger and lighter unions. However, single-lap bonded joints still generate substantial peel and shear stress concentrations at the overlap edges that can be harmful to the structure, especially when using brittle adhesives that do not allow plasticization in these regions. In this work, a numerical and experimental study is performed to evaluate the feasibility of bending the adherends at the ends of the overlap for the strength improvement of single-lap aluminium joints bonded with a brittle and a ductile adhesive. Different combinations of joint eccentricity were tested, including absence of eccentricity, allowing the optimization of the joint. A Finite Element stress and failure analysis in ABAQUS ® was also carried out to provide a better understanding of the bent configuration. Results showed a major advantage of using the proposed modification for the brittle adhesive, but the joints with the ductile adhesive were not much affected by the bending technique.

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Section: Numerical Analysismentioning

confidence: 99%

Strength Improvement of Adhesively-Bonded Joints Using a Reverse-Bent Geometry

Campilho

Pinto²,

Banea

et al. 2011

Journal of Adhesion Science and Technology

109

View full text Add to dashboard Cite

show abstract

“…5 shows two representative meshes of the CZM and XFEM damage modelling analyses, considering the standard refinement that was used for this study. Restraining and loading conditions were introduced to faithfully model the real testing conditions, consisting on clamping of the joint at one edge and applying a vertical restraint and tensile displacement at the opposite edge [41,42]. The meshes were constructed taking advantage of the automatic meshing algorithms of ABAQUS s , from a manual seeding procedure that included biasing towards the Table 2 Properties of the adhesive Araldite s AV138 for CZM modelling [40].…”

Section: Numerical Analysismentioning

confidence: 99%

Strength prediction of single- and double-lap joints by standard and extended finite element modelling

Campilho

Banea

Pinto³

et al. 2011

International Journal of Adhesion and Adhesives

316

121

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The structural integrity of multi-component structures is usually determined by the strength and durability of their unions. Adhesive bonding is often chosen over welding, riveting and bolting, due to the reduction of stress concentrations, reduced weight penalty and easy manufacturing, amongst other issues. In the past decades, the Finite Element Method (FEM) has been used for the simulation and strength prediction of bonded structures, by strength of materials or fracture mechanics-based criteria. Cohesive-zone models (CZMs) have already proved to be an effective tool in modelling damage growth, surpassing a few limitations of the aforementioned techniques. Despite this fact, they still suffer from the restriction of damage growth only at predefined growth paths. The eXtended Finite Element Method (XFEM) is a recent improvement of the FEM, developed to allow the growth of discontinuities within bulk solids along an arbitrary path, by enriching degrees of freedom with special displacement functions, thus overcoming the main restriction of CZMs. These two techniques were tested to simulate adhesively bonded single-and double-lap joints. The comparative evaluation of the two methods showed their capabilities and/or limitations for this specific purpose.

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“…Combined with the results of the shear stress distribution in Section 4.2.1, the intensity of the shear stress concentration of the adhesive layer in the unbalanced GFRP-steel SLJ can be decreased by selecting an optimal E 2 t 1 /E 1 t 2 ratio, which is proposed in [35]. As the Young's modulus 20 Z. Jiang et al…”

Section: Effect Of Young's Modulus Ratio E 2 /Ementioning

confidence: 97%

“…[16] (3) Quasi-two-dimensional model: For this type of model, the shear stress and/or peel stress are treated as variants along the adhesive thickness, and all boundary conditions should be satisfied. The models presented by Allman [17], Chen and Cheng [18], Frostig et al [19] and Radice and Vinson [20] treated the peel stress as a linear variant along the adhesive thickness and presumed the constant shear stress across the adhesive thickness. In the model proposed by Ojalvo and Eidinoff [21], the shear stress is distributed linearly along the adhesive thickness, and the peel stress is kept invariant.…”

Section: Introductionmentioning

confidence: 99%

Two dimensional analysis for an adhesively bonded composite single-lap joint based on flexible interface theory

Jiang

Wan

Zhong

et al. 2015

Journal of Adhesion Science and Technology

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An improved two-dimensional model based on flexible interface theory is proposed for an adhesively bonded composite single-lap joint. In the modified model, the adherends are treated as a Timoshenko beam, and the adhesive layer is assumed to be an Euler-Bernoulli beam. The peel stress and shear stress across the adhesive thickness varied. Additionally, the zero shear stress condition at the free end of the adhesive layer was satisfied. Based on the displacement compatibility condition of a flexible interface, the governing differential equations for the internal forces are derived. The stress distributions of the adhesive layer can be obtained by solving the governing differential equations. A comparison of the results between the modified model, existing classical models, and finite element results indicate that the improved two-dimensional model can determine the stress distribution of the adhesive with high accuracy. Finally, the effects of the thickness ratio, Young's modulus ratio, and interfacial compliance on the stress distribution of the adhesive are studied using the improved model.

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On the analysis of adhesively bonded structures: A high order semi-elastic adhesive layer model

Cited by 26 publications

References 22 publications

Strength Improvement of Adhesively-Bonded Joints Using a Reverse-Bent Geometry

Strength Improvement of Adhesively-Bonded Joints Using a Reverse-Bent Geometry

Strength prediction of single- and double-lap joints by standard and extended finite element modelling

Two dimensional analysis for an adhesively bonded composite single-lap joint based on flexible interface theory

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