Improving the bond strength at hybrid-yarn textile thermoplastic composites for high-technology applications by laser radiation

Köckritz, Tilo; Schiefer, Tom; Jansen, Irene; Beyer, Eckhard

doi:10.1016/j.ijadhadh.2013.06.004

Cited by 15 publications

(5 citation statements)

References 20 publications

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“…Chemical activation is closely related to surface energy, as the goal of chemical activation is to increase the surface energy of a material. Chemical activation can be achieved by various methods such as plasma treatment [161], corona discharge [162], ion irradiation [163], laser activation [164], solvent cleaning [165], and flame treatment [166,167], which improve the wettability of the surface by increasing the surface energy of the material [168].…”

Section: Surface Treatmentmentioning

confidence: 99%

Enhancing Fatigue Life and Strength of Adhesively Bonded Composite Joints: A Comprehensive Review

Malekinejad,

Carbas,

Akhavan-Safar

et al. 2023

Materials

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Adhesive bonding is widely seen as the most optimal method for joining composite materials, bringing significant benefits over mechanical joining, such as lower weight and reduced stress concentrations. Adhesively bonded composite joints find extensive applications where cyclic fatigue loading takes place, but this might ultimately lead to crack damage and safety issues. Consequently, it has become essential to study how these structures behave under fatigue loads and identify the remaining gaps in knowledge to give insights into new possibilities. The fatigue life of adhesively bonded composite joints is influenced by various parameters, including joint configuration and material properties of adherends and adhesive. Numerous studies with varying outcomes have been documented in the literature. However, due to the multitude of influential factors, deriving conclusive insights from these studies for practical design purposes has proven to be challenging. Hence, this review aims to address this challenge by discussing different methods to enhance the fatigue performance of adhesively bonded composite joints. Additionally, it provides a comprehensive overview of the existing literature on adhesively bonded composite joints under cyclic fatigue loading, focusing on three main aspects: Adherends modification, adhesive modification, and joint configurations. Since the effect of modifying the adhesive, adherends, and joint configurations on fatigue performance has not been comprehensively studied in the literature, this review aims to fill this gap by compiling and comparing the relevant experimental data. Furthermore, this review discusses the challenges and limitations associated with the methods that can be used to monitor the initiation and propagation of fatigue cracks.

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Section: Surface Treatmentmentioning

confidence: 99%

Enhancing Fatigue Life and Strength of Adhesively Bonded Composite Joints: A Comprehensive Review

Malekinejad,

Carbas,

Akhavan-Safar

et al. 2023

Materials

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“…Hibrit iplikler kullanılarak elde edilen TTK ürünlerin üretiminde yürütülen diğer araştırma konusu da bunların işlenmesi için lazer radyasyonu gibi teknolojilerden yararlanılması ilgili çalışmalardır [74]. Üretim öncesi ve sonrasında uygulanacak kalite testleri, analiz ve simülasyonlarının geliştirilmesi ile ilgili de çalışmalar devam etmektedir [75,76].…”

Section: Sayfa 70unclassified

Hybrid Yarns For Thermoplastic Composites: Manufacturing Methods and Properties

Kaplan

2016

Tekstil ve Mühendis

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Günümüzde elyaf takviyeli termoplastik kompozit malzemeler yüksek dayanım ve geri dönüştürülebilme özelliklerinden dolayı yaygın şekilde kullanılmaktadır. Üstün avantaj sağlayan bu özelliklerinin yanında yüksek erime viskozitesi ve düşük ısıl dayanım gibi özellikler bu malzemelerin zayıf yönünü oluşturmaktadır. Termoplastik malzemelerin çalışma şartlarını zorlaştıran ve üretim maliyetlerini arttıran yüksek erime viskozitesi gibi problemlerin çözülmesi için güçlendirici elyaf ve matrisin katı halde karıştırılması fikri geliştirilmiştir. Bunun sonucunda termoplastik kompozit üretiminde yarı mamul olarak birçok hibrit iplik kullanılmıştır. Bu çalışmada farklı iplik üretim yöntemleri, iplik yapıları ve özellikleri ayrıntılı olarak verilmektedir. Hibrit iplik üretim yöntemlerinin ve proses parametrelerinin, iplik yapısına ve özelliklerine etkisi incelenmektedir.

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“…Until now, the laser-treated FRP must be subjected to optical inspection, whether visually or by means of a microscope. The qualitative evaluation is subject to the objective assessment of the processor and thus depends on his or her experience [18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Prediction of the Quality of Thermally Sprayed Copper Coatings on Laser-Structured CFRP Surfaces Using Hyperspectral Imaging

et al. 2022

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With the progressive replacement of metallic parts by high-performance fiber-reinforced plastic (FRP) components, typical properties of metals are required to be placed on the material’s surface. A metallic coating applied to the FRP surface by thermal spraying, for instance, can fulfill these requirements, including electrical conductivity. In this work, laser pre-treatments are utilized for increasing the bond strength of metallic coatings. However, due to the high-precision material removal using pulsed laser radiation, the production-related heterogeneous fiber distribution in FRP leads to variations in the structuring result and consequently to different qualities of the subsequent coating. In this study, hyperspectral imaging (HSI) technologies in conjunction with deep learning were applied to carbon fiber-reinforced plastics (CFRP) structured by nanosecond pulsed laser. HSI-based prediction models could be developed, which allow for reliable prediction, with an accuracy of around 80%, of which laser-treated areas will successfully be coated and which will not. By using this objective and automatic evaluation, it is possible to avoid large amounts of rejects before further processing the parts and also to optimize the adhesion of coatings. Spatially resolved data enables local reworking during the laser process, making it feasible for the manufacturing process to achieve zero waste.

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Improving the bond strength at hybrid-yarn textile thermoplastic composites for high-technology applications by laser radiation

Cited by 15 publications

References 20 publications

Enhancing Fatigue Life and Strength of Adhesively Bonded Composite Joints: A Comprehensive Review

Enhancing Fatigue Life and Strength of Adhesively Bonded Composite Joints: A Comprehensive Review

Hybrid Yarns For Thermoplastic Composites: Manufacturing Methods and Properties

Prediction of the Quality of Thermally Sprayed Copper Coatings on Laser-Structured CFRP Surfaces Using Hyperspectral Imaging

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