Water absorption mechanism and mechanical performance of adhesively joint aluminum alloy with GNP reinforced epoxy

Kong, Nurziana; Khalil, Nur Zalikha

doi:10.1016/j.matpr.2021.11.528

Cited by 2 publications

(2 citation statements)

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“…These advantages have allowed adhesive joining to be utilized in many sophisticated applications such as aeronautics, automotive, electronics, and marine sectors. [3][4][5] Despite these favorable characteristics, adhesive joining suffers relatively poor mechanical performance as compared to other joining techniques. Specifically, adhesive joining is prone to exhibit the presence of stress concentration at free edges of the joining area, which stems from the eccentricity of the applied load, causing bending moment to be exerted, resulting in premature failure of the joining adherend.…”

Section: Introductionmentioning

confidence: 99%

“…Due to its important advantages, such as possibilities for lightweight construction, uniform stress distribution, and the flexibility to join different types of materials 1,2 adhesive joining has emerged as a more preferred joining alternative when compared to traditional joining techniques such as welding and mechanical fastening. These advantages have allowed adhesive joining to be utilized in many sophisticated applications such as aeronautics, automotive, electronics, and marine sectors 3–5 . Despite these favorable characteristics, adhesive joining suffers relatively poor mechanical performance as compared to other joining techniques.…”

Section: Introductionmentioning

confidence: 99%

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The influence of GNP on the mechanical and thermomechanical properties of epoxy adhesive: Pearson correlation matrix and heatmap application in data interpretation

Khalil,

Kong,

Fricke

2024

Polymer Composites

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This article explores the impact of Graphene Nanoplatelet (GNP) reinforcement on the mechanical and thermomechanical properties of epoxy adhesive. The impact of GNPs on the structural adhesive largely depends on factors like dispersion stability and GNP concentration. Given the complexity of these interactions, it is imperative to obtain indicators for the degree of each interaction. In this study, Pearson correlation matrix and heatmaps analysis were used to analyze the relationship between various variables and the strength of the connection. The addition of GNP at various concentrations to the epoxy adhesive led to a reduction in storage modulus, loss modulus, and glass transition temperature, attributed to the agglomeration of GNP. In bulk specimens, the incorporation of GNP, regardless of its content, has decreased tensile stress up to 70.7% while increasing its fracture elongation up to 396.3%. Within joining specimens with GNP, specimens with 1.5 wt% GNP content showed the highest cohesive fracture mode and largest shear strength. Pearson correlation matrix and heatmaps have demonstrated very good accuracy in reflecting the experimental data. They offer a comprehensive assessment of the relationship between various variables while indicating the degree of influence each variable has on the properties of the adhesive and joining specimens.Highlights GNP effects in adhesive can be accurately analyzed with Pearson correlation matrix & heatmaps. Connections strength for various variables can be shown by Pearson correlation matrix & heatmaps. Pearson correlation matrix & heatmaps assess variable relationships comprehensively.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%