Impact of Selected Structural, Material and Exploitation Factors on Adhesive Joints Strength

Rudawska, Anna; Maziarz, M.; Miturska, Izabela

doi:10.1051/matecconf/201925201006

Cited by 5 publications

(4 citation statements)

References 12 publications

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“…For example, adhesives made from epoxy resins are designed so that internal crosslinking occurs leading to increased cohesive strength, but can also produce covalent bonds [ 27 , 28 , 29 ]. The durability of an adhesive joint depends mainly on the way it is loaded and the environment in which it is exposed [ 11 , 23 , 30 ]. Due to these aspects, numerous experimental, often destructive, experiments are conducted that address the strength of the adhesive compositions themselves, as well as adhesive joints made under varying structural and technological factors.…”

Section: Introductionmentioning

confidence: 99%

Influence of Physical Modification of the Adhesive Composition on the Strength Properties of Aerospace Aluminum Alloy Sheet Adhesive Joints

2022

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One of the most important design factors in the constitution of adhesive joints is the correct choice of adhesive. Currently, there is a full range of options on the commercial market in this regard, but there is increasing research into modifying adhesives for specific engineering applications. The aim of this study was to analyze the effect of physical modification with fillers on the properties of the adhesive composition and the adhesive joints. The adhesives used in the study were a composition of Epidian 5 epoxy resin and PAC curing agent modified with 1% montmorillonite, 5% calcium carbonate and 20% activated carbon. The adhesive compositions in the cured state were subjected to strength tests and SEM and DSC analyses. Using these compositions, adhesive joints of EN AW 2024 T3 aluminum alloy sheets were also made. The tests carried out showed that, due to the use of different fillers, their effects on certain properties of the adhesive compositions are different types. It was shown that physical modification of the adhesive composition does not always result in positive effects. The study also attempted to determine the correlation between the properties of the adhesive compositions in the cured state and the strength of the adhesive joints.

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Section: Introductionmentioning

confidence: 99%

Influence of Physical Modification of the Adhesive Composition on the Strength Properties of Aerospace Aluminum Alloy Sheet Adhesive Joints

2022

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“…A change in these factors for a particular joint may affect the properties of the joint, e.g. another material, in a slightly different way, including its strength properties [8,9].…”

Section: Introductionmentioning

confidence: 99%

Impact of Adhesive Type and Abrasive Wear Used in the Surface Preparation Process on the Strength of Steel Sheet Adhesive Joints

Miturska¹,

Rudawska²,

Doluk³

et al. 2022

TiAM

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The aim of the paper was to present issues related to the determination of the influence of selected technological factors: the method of surface preparation and type of adhesive on the strength of adhesive joints made of steel sheet C45. As a method of surface preparation the process of shot-blasting with the use of three types of abrasives differentiated in terms of the degree of its wear was used. The adhesive bonds were made with the use of two two-component epoxy adhesive compositions based on Epidian 57 epoxy resin and PAC and Z-1 curing agents combined with the resin in the recommended proportions. The measurements of roughness and topography of surfaces prepared for the bonding process were also carried out. After the curing process, strength tests of adhesive bonds were performed on the Zwick/Roell 150 testing machine, according to PN-EN 1465 standard. It was noted, among others, that with increasing wear of the abrasive used in the surface preparation process, the value of adhesive bonds strength decreased and the higher strength of adhesive bonds was characterized by adhesive joints made with Epidian57/Z-1/100:10 adhesive. The obtained results were subjected to statistical analysis.

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“…Surface preparation has a very large influence on the strength and resistance of the adhesive joints. When choosing the appropriate surface treatment method, it is necessary to know the type, structure, and properties of the adherends [ 15 , 29 , 30 , 31 ].…”

Section: Introductionmentioning

confidence: 99%

The Influence of Sandblasting Process Parameters of Aerospace Aluminium Alloy Sheets on Adhesive Joints Strength

2021

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In this study, the influence of sandblasting process parameters as a surface preparation method on the strength of single-lap adhesive joints of EN AW 2024 T3 aerospace aluminium alloy sheets was determined. Eleven sets of sandblasting parameters were used, which were determined according to a determined experimental plan. The variable factors in the sandblasting process were pressure, nozzle distance, and workpiece displacement speed. The sand jet incidence angle was constant. Garnet 80 E+ was the abrasive material that was used. The joints were made using an epoxy adhesive composition of Epidian 5 epoxy resin and a PAC curing agent. The influence of the surface preparation method on the surface roughness and contact angle to determine the surface free energy was evaluated. The shear strength of the adhesive joints was also determined, which finally allowed the evaluation of the applied surface treatment variants. The obtained results were subjected to statistical analysis, which indicated that the highest shear strength of the adhesive joints was obtained for samples whose surfaces were treated by sandblasting at parameter configurations in which the pressure was 5–6 × 105 Pa; the distance between the nozzle and the sandblasted surface should not be greater than 97 mm, and the speed at which the workpiece moves in relation to the nozzle should not be greater than 75 mm/min.

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Impact of Selected Structural, Material and Exploitation Factors on Adhesive Joints Strength

Cited by 5 publications

References 12 publications

Influence of Physical Modification of the Adhesive Composition on the Strength Properties of Aerospace Aluminum Alloy Sheet Adhesive Joints

Influence of Physical Modification of the Adhesive Composition on the Strength Properties of Aerospace Aluminum Alloy Sheet Adhesive Joints

Impact of Adhesive Type and Abrasive Wear Used in the Surface Preparation Process on the Strength of Steel Sheet Adhesive Joints

The Influence of Sandblasting Process Parameters of Aerospace Aluminium Alloy Sheets on Adhesive Joints Strength

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