Failure mechanism of bonded joints with similar and dissimilar material

Hasheminia, Seyyed Mohammad; Park, Beom Chul; Chun, Hye‐Yeong; Park, Jong Chan; Chang, Hong Suk

doi:10.1016/j.compositesb.2018.11.016

Cited by 36 publications

(9 citation statements)

References 9 publications

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“…Hasheminia et al studied the fracture mechanism of joints with similar and dissimilar materials with composite substrates, observing adhesive failure and delamination failure. When adhesive failure was found, boundary lines were also found, associated with some plastic deformation of the adhesive [7]. A similar work was carried out by Kanani for hybrid joints, where the authors found a correlation between the stiffness mismatch of the adherends and the failure mode of the joint; this generated a large shear stress distribution near the interface with the adherend with lower stiffness.…”

Section: Introductionmentioning

confidence: 60%

Experimental Study of the Impact of Glass Beads on Adhesive Joint Strength and Its Failure Mechanism

et al. 2021

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The use of modern structural adhesives provides a lightweight, practical, and high strength joining methodology, which is increasingly being adopted in the automotive and aeronautical sectors, among many others. However, the strict mechanical performance standards that must be met in these applications require a constant search for ways of improving the adhesives’ behavior, which has led to the growing use of reinforcements as a way of improving the capabilities of bonded joints. The aim of this work was, thus, to analyze how the addition of inorganic fillers to the adhesive layer affects a joint’s strength and its failure mechanism. To this end, single lap joint specimens with mild steel and high strength steel substrates were tested, at quasi-static speeds, and with different amounts of glass microspheres reinforcing two different structural adhesives. The experimental results indicated that the addition of glass particles reduced the joint performance for both substrates under study. Furthermore, the failure pattern was found to evolve from adhesive failure to a cohesive type of failure as the amount of glass particles present in the adhesive was increased.

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Section: Introductionmentioning

confidence: 60%

Experimental Study of the Impact of Glass Beads on Adhesive Joint Strength and Its Failure Mechanism

et al. 2021

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“…Moreover, dissimilar material joints with a structure such as composite materials combined with light-weight metals have been widely used in the automobile industries to deal with the issue of fuel efficiency and weight reduction [7,17,25]. Galvez et al [14] investigated carbon fiber reinforced polymer (CFRP) adhesive joints and focused on the study of a structural adhesive for its application in this new type of joints.…”

mentioning

confidence: 99%

“…Galvez et al [14] investigated carbon fiber reinforced polymer (CFRP) adhesive joints and focused on the study of a structural adhesive for its application in this new type of joints. Hasheminia et al [17] carried out the experiments and the finite elements analysis of single lap-shear bonded joints with metal-composite, similar composites and dissimilar composites components to investigate the factors that affect the joint failure load. In the work by Banea [25] the effect of material on the mechanical behaviour of adhesive joints was investigated experimentally and numerically by using single lap joints (SLJs) with different adherend materials (high strength steel, low strength steel and composite).…”

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confidence: 99%

Comparison of the adhesive joints’ strength of the similar and dissimilar systems of metal alloy/polymer composite

Rudawska

2019

Appl Adhes Sci

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Bonding technology is one of the most popular methods of joining various constructional materials [1-3]. It plays a vital role in production of different types of machines and tools [2]. This fact results from numerous advantages of the adhesive joints. The most important ones include the capacity of joining construction materials of different physical and chemical properties [4-6], as well as of significantly different sizes (e.g. thickness) [4, 7-9]. A lot of advantages of the adhesive joints have contributed to the fact that they are widely used in aviation [8, 10-12], aeronautics [13] and automotive [14, 15]. One of the most important advantages is the ability to make dissimilar joints [5, 16-18]. He and Ge [4] tested the effect of similar versus dissimilar assembled adherends of adhesively bonded composite joints, on the dynamic strength of single-lap. Pinto et al. [16] investigated the tensile strength of single-lap joints between similar and dissimilar adherends (included polyethylene (PE), polypropylene (PP), carbon-epoxy (CFRP), and glass-polyester (GFRP) composites) bonded with an acrylic adhesive.

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“…Adherend failure usually occurs in dissimilar adherents when one of the adherent is metal weakened by corrosion. When adherend failure occurs on a composite plate, the failure load direction varies according to the stacking angle of the contact ply [30].…”

Section: Substrate or Adherend Failurementioning

confidence: 99%

Defects and uncertainties of adhesively bonded composite joints

2021

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The increasing use of fibre reinforced polymer composite materials in a wide range of applications increases the use of similar and dissimilar joints. Traditional joining methods such as welding, mechanical fastening and riveting are challenging in composites due to their material properties, heterogeneous nature, and layup configuration. Adhesive bonding allows flexibility in materials selection and offers improved production efficiency from product design and manufacture to final assembly, enabling cost reduction. However, the performance of adhesively bonded composite structures cannot be fully verified by inspection and testing due to the unforeseen nature of defects and manufacturing uncertainties presented in this joining method. These uncertainties can manifest as kissing bonds, porosity and voids in the adhesive. As a result, the use of adhesively bonded joints is often constrained by conservative certification requirements, limiting the potential of composite materials in weight reduction, cost-saving, and performance. There is a need to identify these uncertainties and understand their effect when designing these adhesively bonded joints. This article aims to report and categorise these uncertainties, offering the reader a reliable and inclusive source to conduct further research, such as the development of probabilistic reliability-based design optimisation, sensitivity analysis, defect detection methods and process development.

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Failure mechanism of bonded joints with similar and dissimilar material

Cited by 36 publications

References 9 publications

Experimental Study of the Impact of Glass Beads on Adhesive Joint Strength and Its Failure Mechanism

Experimental Study of the Impact of Glass Beads on Adhesive Joint Strength and Its Failure Mechanism

Comparison of the adhesive joints’ strength of the similar and dissimilar systems of metal alloy/polymer composite

Defects and uncertainties of adhesively bonded composite joints

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