Experimental feasibility and environmental impacts of compression molded discontinuous carbon fiber composites with opportunities for circular economy

Stelzer, Philipp; Çakmak, Umut; Eisner, Lisa B.; Doppelbauer, Leonhard; Kállai, Imre; Schweizer, Gernot; Prammer, Heinz Karl; Major, Zoltán

doi:10.1016/j.compositesb.2022.109638

Cited by 14 publications

(5 citation statements)

References 52 publications

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“…Recycled and re-manufactured materials and components often compete with cheaper virgin materials and components in the market. The prices of virgin materials and components depend on factors such as the availability, extraction, and production of raw materials [31]. The prices of recycled and re-manufactured materials and components depend on factors such as the quality, quantity, and demand of recycled and re-manufactured materials and components.…”

Section: Competition With Cheaper Virgin Materialsmentioning

confidence: 99%

Towards a Circular Economy: Challenges and Opportunities for Recycling and Re-manufacturing of Materials and Components

Rakesh,

Harika,

Chahuan

et al. 2023

E3S Web Conf.

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The transition towards a circular economy is a critical step in achieving sustainable development and mitigating environmental degradation. This study explores the challenges and opportunities associated with recycling and re-manufacturing of materials and components within the context of a circular economy. We conducted a comprehensive analysis of the current state of recycling and re-manufacturing technologies, identifying key barriers such as material degradation, contamination, and technological limitations. We also examined the potential for innovative solutions, including advanced material characterization techniques, additive manufacturing, and digital twin technologies, to address these challenges. Our findings reveal that the integration of these technologies can significantly enhance the efficiency and effectiveness of recycling and re-manufacturing processes, enabling the recovery of high-quality materials and components. Furthermore, we highlight the importance of establishing a robust regulatory framework and incentivizing industry participation to accelerate the transition towards a circular economy. This study provides valuable insights for policymakers, industry stakeholders, and researchers working towards the development and implementation of sustainable materials management strategies. By addressing the challenges and harnessing the opportunities identified in this study, we can pave the way for a more sustainable and resource-efficient future.

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Section: Competition With Cheaper Virgin Materialsmentioning

confidence: 99%

Towards a Circular Economy: Challenges and Opportunities for Recycling and Re-manufacturing of Materials and Components

Rakesh,

Harika,

Chahuan

et al. 2023

E3S Web Conf.

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“…Due to its definition and multiple dependencies, this quantity is prone to be predicted by the coupling of finite element simulations and neural networks, which will be a main focus in upcoming research activities. However, the gathered knowledge regarding process parameters (consolidation pressure, temperature, and time) on the interface properties of substrate/tape structures can be used in automotive or aerospace applications to further optimize current design or to increase the strength to weight ratio even more [ 4 , 24 , 25 , 26 ].…”

Section: Conclusion and Future Perspectivesmentioning

confidence: 99%

Interface Characterization of Consolidated PPGF Tapes on PPGF Mat Material

Kapshammer¹,

Miron²,

Dangl³

et al. 2023

Polymers

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Laminated composites with thermoset matrices are already well established in major engineering fields like automotive and aviation. The primary drawbacks of such thermoset-based composites are the high cycle times required during manufacturing and their limited potential for recycling. Providing an alternative to thermoset-based composites, thermoplastic matrix materials gained more and more momentum by addressing these previously mentioned drawbacks. The preferred manufacturing technique for these materials employs fiber-reinforced thermoplastic tapes consolidated and formed together with a compatible substrate. The most critical aspect for all these applications is the stress or load transfer between the thermoplastic tapes and the substrate. If the interface is too weak and fails prior to the substrate or tape, a high amount of theoretical mechanical performance is lost. The presented research investigates the influence of variations in manufacturing parameters, within the industrially relevant process window, on the interface strength of the final composite. The investigated composite material consists of PPGF UD tapes consolidated on a PPGF mat substrate. In particular, the influence of the consolidation parameters of pressure, temperature, and time are of special interest. The results of this work reveal a 400% increase in the measured mean strain energy release rate upon increasing the consolidation time from 60 s to 120 s at a consolidation temperature of 230 °C and a pressure of one bar. In contrast to this, an increase in the consolidation pressure, at constant temperature and time, leads to a minor improvement in the GC value of 20%. For testing and characterizing the corresponding interface properties, a mandrel peel testing setup was employed.

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“…Compression molding is an e cient and leading-edge manufacturing process of ber-reinforced composite (Stelzer et al, 2022). Though a highly competitive manufacturing process, compression molding machines are usually expensive because of their high holding cost and energy expenditure (Rawi, Alias, and Wahid 2020).…”

Section: Introductionmentioning

confidence: 99%

Design and Development of a Virtual Reality Training Platform for Fiber-Reinforced Composite Manufacturing

Rahman,

Raihan

et al. 2024

Preprint

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This study presents the design and development of a virtual reality (VR) training platform for manufacturing fiber-reinforced composites, a sophisticated and high-demand material in various industries. Due to the high costs and safety concerns associated with compression molding machines, essential equipment for this manufacturing process, the VR platform offers a promising alternative for training in educational institutions and manufacturing industries. The platform provides immersive and interactive training in a cost-efficient learning environment, allowing users to gain practical experience without the risks and expenses of physical training. The VR training module was developed using the Unity game engine and deployed on the HTC Vive Pro headset. While virtual reality-based training has become very popular in both educational and industrial settings, very few studies have confirmed the knowledge transfer from immersive training to real-world tasks. In this experimental study, researchers compared the performance of participants who received prior VR training with those who did not for their real-world performance in manufacturing. The findings of this research have the potential to significantly impact the effectiveness and transferability of virtual-reality-based training in composite manufacturing. Educational institutions and manufacturing industries can utilize the VR training platform to provide a safer and more cost-effective training environment for manufacturing fiber-reinforced composites.

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Experimental feasibility and environmental impacts of compression molded discontinuous carbon fiber composites with opportunities for circular economy

Cited by 14 publications

References 52 publications

Towards a Circular Economy: Challenges and Opportunities for Recycling and Re-manufacturing of Materials and Components

Towards a Circular Economy: Challenges and Opportunities for Recycling and Re-manufacturing of Materials and Components

Interface Characterization of Consolidated PPGF Tapes on PPGF Mat Material

Design and Development of a Virtual Reality Training Platform for Fiber-Reinforced Composite Manufacturing

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