Introductory Chapter: Structural Adhesive Bonded Joints

Özer, Halil

doi:10.5772/intechopen.74229

Cited by 3 publications

(5 citation statements)

References 30 publications

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“…Table 7 and Table 8 report the results for the 25.4 mm and 6.35 mm overlap lengths respectively. The corner between the adherend and the adhesive is a singularity point for the stress, and this is well known from the technical literature [37][38][39][40][41].…”

Section: Numerical Simulationsmentioning

confidence: 99%

Adhesion Improvement of Thermoplastics-Based Composites by Atmospheric Plasma and UV Treatments

et al. 2021

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The present work is concerned with adhesive bonding of thermoplastic composites used in general aerospace applications, including polyphenylene sulfide (PPS), polyetherimide (PEI) and polyetheretherketone (PEEK) carbon fibre composites. Three different surface treatments have been applied to the PEEK, PPS and PEI-based composites in order to enhance the adhesion: atmospheric plasma, ultraviolet radiation (UV) and isopropanol wiping as a control. Water contact angles and free surface energies were measured following the standard experimental procedure based on the employment of three different liquid droplets. Infrared spectroscopy and X-ray photoelectron spectroscopy (XPS) were subsequently performed to characterize the surface chemistry of the samples after treatment. The single lap joints were manufactured and bonded by an Aerospace grade epoxy-based film adhesive originally developed for use on metals but with the ability to bond treated thermoplastics to good strength (supplied by Henkel Ireland). Quasi-static (QS) tests were conducted. The lap shear strength was evaluated, and the failure mechanisms of the different joints were examined for the range of surface treatments considered. It was found that the performances of the PEEK and PPS joints were considerably improved by the plasma and UV treatments resulting in cohesive and delamination failures, while PEI was unaffected by the plasma and UV treatments and performed very well throughout.

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Section: Numerical Simulationsmentioning

confidence: 99%

Adhesion Improvement of Thermoplastics-Based Composites by Atmospheric Plasma and UV Treatments

et al. 2021

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“…The shear stress occurring along the bonding line is at its maximum level at both ends of the adhesive. 33 The distinctive behavior of shear stress and peel and shear stress distributions throughout the bond line length in an SLJ, however, are depicted in Figure 2(a) and (b), respectively. It can be seen from Figure 4(c) that both shear and shear stresses reach their peak at the thrust ends.…”

Section: Introductionmentioning

confidence: 99%

“…When a bonded joint is subjected to a tensile load, the load is transferred mainly by the shear stress developed in the adhesive layer. 33 The first analytical model for assessing the adhesive shear stresses of bonded joints was developed by Volkersen in 1938. [38][39][40] His model is also called shearlag model, which neglects the bending moment.…”

Section: Introductionmentioning

confidence: 99%

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Effects of single-lap joint at different adhesive thicknesses on fatigue strength of metals with different surface coatings

Baykara

2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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Adhesive technology defined as a kind of chemical bonding alternative to thermal and mechanical joints, has attracted the attention of industry people and researchers in various fields, especially in the automobile sector for the last 30 years. Therefore, this research study has aimed to consider the issue in the automotive industry, the adhesion performance was investigated for the cases in which a metal part was joined to a vehicle body both after applying coatings and primer paint respectively. İn this respect, some of the test samples were prepared by being coated with cataphoresis, while some others were produced with primer painting along with the ones that do not have any coating or painting on them. Following this procedure, single lap type joints with different adhesive thicknesses were manufactured and subjected to fatigue tests. To make a comparison of their fatigue endurances, spot welded joints, as an alternative bonding method, were also subjected to the fatigue test. It was clearly observed that the spot welding joints have surpassed their adhesive counterparts in fatigue performance, and the samples coated with cataphoresis have outperformed among the adhesion type bonds.

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Effects of the single-lap joint on fatigue strength of metals with different surface coatings: a numerical simulation

2023

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Due to their low cost and ease of use, adhesives are frequently used in the industry. Selecting adherents and adhesives is essential when thinking about a construction that uses them. A fatigue study is therefore required to determine the best adherents and adhesives. In this situation, a prediction model must be incorporated into the process. In this study, Single-lap joint (SLJ) was chosen. Specimens with uncoated, primed, and cataphoresis-treated surfaces on DC01 steel sheet surfaces have been taken into account. A numerical solution was produced to obtain the fatigue life of the structures. Results indicate that the produced approach can provide an accurate estimate of fatigue resistance of different bonding methods including adhesive joints with various coating and adhesive thicknesses combined with adhesive techniques.

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Introductory Chapter: Structural Adhesive Bonded Joints

Cited by 3 publications

References 30 publications

Adhesion Improvement of Thermoplastics-Based Composites by Atmospheric Plasma and UV Treatments

Adhesion Improvement of Thermoplastics-Based Composites by Atmospheric Plasma and UV Treatments

Effects of single-lap joint at different adhesive thicknesses on fatigue strength of metals with different surface coatings

Effects of the single-lap joint on fatigue strength of metals with different surface coatings: a numerical simulation

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