Aerospace industry applications of adhesive bonding

Hart-Smith, John

doi:10.1016/b978-0-12-819954-1.00001-0

Cited by 8 publications

(1 citation statement)

References 3 publications

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“…Among the many benefits of adhesive joints is their ability to connect adherends without practical limits to the thickness of the bonded adherends [2]. The aerospace industry benefits greatly from adhesive bonding, as it helps improve aerodynamics, reduces galvanic corrosion, and eliminates the heat-affected zones common with welded connections [3].…”

Section: Introductionmentioning

confidence: 99%

Investigating and Analyzing the Stress Distribution in Flexible Adherend for Peel-Loaded Adhesive Joints

Al-Sabur,

Khalaf,

Kubit

et al. 2024

Preprint

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In engineering applications, the significance of the adhesive joint geometry lies in its direct consequence on load distribution, stress concentration, and durability of the bonded structure. In this study, two homogenous rectangular bodies were adhesively joined along a 12.5 mm. The focus of this study is to investigate the distribution of normal stresses in an adhesive joint subjected to peel load. The upper body represents the flexible adherent, and the lower body represents the rigid adherent. Six points on the upper body and three points in the adhesive joint were selected to investigate displacement and strain. The obtained results were valuable and showed changes in displacement gradually reduced from the rigid and flexible adherents to the adhesive joint. Notably, the displacement reached zero at the adhesive joint on point 5, meaning the stiffness of the adhesive layer bonding was effective. On the other hand, the study examined the adhesive layer deformation according to the uniformity of displacements across vertically aligned points. The adhesive layer's consistent response to the applied load at various locations confirmed the uniform deformation properties inside. This study's experimental data gave important insight into the deformation of adhesive joints and how stresses are distributed in them.

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Section: Introductionmentioning

confidence: 99%

Investigating and Analyzing the Stress Distribution in Flexible Adherend for Peel-Loaded Adhesive Joints

Al-Sabur,

Khalaf,

Kubit

et al. 2024

Preprint

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Parametric cohesive zone analysis of bi-adhesive single-step joints

Carvalho,

Campilho,

Vargas

et al. 2023

SN Appl. Sci.

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The industry has advanced in replacing traditional joining methods, such as screwing/riveting and welding, especially the aeronautical and automotive industries, which have adopted the adhesive bonding method. This method has the advantages of simplifying the process, improving performance in terms of fatigue load, and improving the union between dissimilar materials. In addition, the development of computational numerical methods, with greater precision, has contributed to the dimensioning of joints, as well as the prediction of the resistance of these joints, which has contributed to more reliable simulations of different adhesive bonding solutions and their industrial implementation. Different modifications to the conventional designs are addressed in the literature to achieve the best results, including geometrical and material modifications. In the present research, the strength of single-step single-adhesive joints and bi-adhesive joints (BAJ) manufactured with AW 6082-T651 aluminium adherends is experimentally and numerically studied for different overlap lengths (LO). Three commercial adhesives were studied, from brittle to ductile, along with different adhesive combinations in the BAJ technique. The experimental work was mainly used for numerical model validation. The numerical analysis took advantage of triangular cohesive zone models (CZM) and included the study of peel and shear stresses, strength, and energy to failure. It was possible to validate the CZM accuracy by comparison with the experimental data. The analysis carried out showed that the BAJ technique did not reveal significant increases in strength compared to single-adhesive joints. However, when damage tolerance and dissipated energy are analysed, a noticeable increase in performance is observed, especially in joints with larger LO.

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