Prediction of failure load in flat-joggle-flat co-cured composite joints using artificial neural networks

Hiremath, Vinayak S; Reddy, Diane M.

doi:10.1016/j.matlet.2023.134491

Cited by 9 publications

(3 citation statements)

References 7 publications

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“…Adhesive-connected sections are widely utilized in many technical domains, and scholars have examined their structural behavior in a variety of contexts. [11][12][13][14] Akpinar et al 15 have examined the impact of the component thicknesses on the adhesively connected joint's failing performance during reversal fatigue load circumstances. Metallic patches increase adhesives connected to fracturing loads by 94%, according to research by Demir et al.…”

Section: Introductionmentioning

confidence: 99%

“…In this regard, more research is required to gain a greater comprehension of the mechanical characteristics and load-bearing capacity of PLA components made using additive manufacturing. 28 A number of studies have been carried out to create effective real-time composite laminates, and the best approach for deep learning based on artificial neural networks (ANNs) was utilized to forecast the laminate under impact stress and shear performances 14,29 Kalhor et al, 30 examined the sequence of laminating stacking and FRP thicknesses in an attempt to determine the response of square tubes to an axial smash. The ANN model also forecasts low-velocity collisions on composite plates.…”

Section: Introductionmentioning

confidence: 99%

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Enhancing shear strength in 3D printed single lap composite joints: A multi‐faceted exploration of GNP integration, print orientation, utilizing artificial neural networks, and dynamic analysis

Hiremath,

Reddy,

Reddy

et al. 2024

J of Applied Polymer Sci

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The state‐of‐the‐art manufacturing process known as additive manufacturing (AM) employs components that may be processed by AM, including ceramics, polymeric materials, metallic substances, titanium, metallic substances, and composites, to produce parts with intricate designs and exact properties. Fused deposition modeling (FDM) is a rapidly growing 3D printing technique. However, most FDM systems only support polylactic acid (PLA) or acrylonitrile butadiene styrene (ABS) as a printing medium. The impact of print orientations and graphene nanoparticles upon the tensile and shear properties of PLA single‐lap joint samples created by FDM has been investigated in this work. According to experimentation, the 0° orientation has the highest load‐bearing capacity and shear strength compared to 45° and 90°. Also, addition of GNP to epoxy adhesive improved greatly, with 0.25 to 1.00 weight percentages of 20.94, 12.34, 38.98, and 31.11%, respectively. FESEM has been used to analyze the failure criteria. The free vibrational analysis confirmed that the 3DS6 sample had the highest natural frequency (598.7 Hz) compared to all other samples. The artificial neural network (ANN) approach accurately predicted the failure load. The overall =0.8471 achieved is below the permissible margin of error, indicating that both the outcomes are reliable and in satisfactory agreement.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Enhancing shear strength in 3D printed single lap composite joints: A multi‐faceted exploration of GNP integration, print orientation, utilizing artificial neural networks, and dynamic analysis

Hiremath,

Reddy,

Reddy

et al. 2024

J of Applied Polymer Sci

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show abstract

“…Based on a review of the research, most studies looked at how different reinforcements affected the shear behavior of composite junctions [37][38][39][40]. In order to strengthen joints, the present work intends to investigate the combined influence of reinforcements GNP and Z-pins to enhance the shear strength in the FJF composite joints utilizing various bonding procedures.…”

Section: Introductionmentioning

confidence: 99%

Influence of different manufacturing techniques on GFRP flat-joggle-flat composite joints using multi-scale reinforcements for enhancing shear properties

Hiremath,

Dhilipkumar,

Reddy

et al. 2024

Mater. Res. Express

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Composite materials, particular glass fibre-reinforced polymers, or GFRP are being used far more frequently. Airframes have been manufactured utilizing reinforced composites, including struts, frames, and flaps, employing raised epoxy-based co-cure technology. The current research describes a multi-scale approach to fortifying graphene nanoparticles (GNP) and carbon fibre Z-pins in order to strengthen the flat-joggle-flat composite joints with different manufacturing technique. Shear investigation showed that adding GNPs and putting carbon fibre pins (Z-pins) in a crosswise position (perpendicular to plane) to the joints surface, concurrent reinforcement gives rise to greater shear characteristics with quasi-static loads. Specifically, there was a 45.6 % improvement in shear resistance when contrasted with unreinforced co-cured FJF joints. The FESEM has been utilised to demonstrate the failure analysis of the specimens, which shows the clear failure mechanism of the FJF joint specimens. The FJF joint with multiscale reinforcement has a very high natural frequency of 685.1 Hz as compared to other configurations, according to the vibration analysis.

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Study on the tensile failure mechanisms of CFRP‐Al flat‐joggle‐flat bonded joints

QingXin,

ZhiMing,

TianYu

et al. 2024

Polymer Composites

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This paper focuses on CFRP‐Al bonded joints, experimentally investigating the effects of joint geometries, different types of adhesives, and overlap lengths on the mechanical properties of bonded joints. Digital Image Correlation (DIC) technology was used to monitor the entire tensile processes, and the deformations and fracture processes of the bonded joints were captured. The strain evolution processes of the joints were obtained through analysis, and quantitative analyses of the joint fracture surfaces were conducted. The results indicate that the special geometric shape of the Flat‐Joggle‐Flat (FJF) bonded joint reduce secondary bending effects. Additionally, the joggle section participates in load transfer, significantly enhancing the joint's mechanical performance and altering its failure mode. Joints using ductile adhesives exhibit higher tensile mechanical properties compared to those using brittle adhesives. Compared to the bearing capacity of single‐lap bonded joints with the same overlap length and adhesive, the mechanical performance improvement of FJF bonded joints using ductile adhesives is less pronounced than that of FJF bonded joints using brittle adhesives. Increasing the overlap length enhances the mechanical properties of bonded joints. This study is expected to provide a reference for the engineering application of FJF bonded joints.Highlights FJF joints have higher bearing capacities compared to single lap joints. Ductile adhesives can effectively increase the bearing capacities of joints. Increasing the overlap length can improve the bearing capacities of joints. The end and middle of the FJF joints jointly bear the load effect. The failure modes of FJF joints are different from that of single lap joints.

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Prediction of failure load in flat-joggle-flat co-cured composite joints using artificial neural networks

Cited by 9 publications

References 7 publications

Enhancing shear strength in 3D printed single lap composite joints: A multi‐faceted exploration of GNP integration, print orientation, utilizing artificial neural networks, and dynamic analysis

Enhancing shear strength in 3D printed single lap composite joints: A multi‐faceted exploration of GNP integration, print orientation, utilizing artificial neural networks, and dynamic analysis

Influence of different manufacturing techniques on GFRP flat-joggle-flat composite joints using multi-scale reinforcements for enhancing shear properties

Study on the tensile failure mechanisms of CFRP‐Al flat‐joggle‐flat bonded joints

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