Formability of TUFF Composite Blanks

Yarlagadda, Shridhar; Advani, Suresh; Deitzel, Joseph M.; Heider, Dirk; Molligan, Dan; Roseman, David L.; Šimáček, Pavel; Tierney, John; Gillespie, John

doi:10.33599/nasampe/s.19.1606

Cited by 13 publications

(9 citation statements)

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“…Recycled fiber composites based on discontinuous short fibers offer a potential solution to this problem. For example, Yarlagadda et al [91] showed that TUFF preforms can undergo extensional and transverse strain up to 40% with uniform deformation to conform to complex geometries. An example is shown in Figure 16, capturing the high formability of 3 mm fiber preforms in both the longitudinal and transverse directions.…”

Section: Deep Drawabilitymentioning

confidence: 99%

“…Organosheets offer a strong candidate material for automotive manufacturing due to their stampability, shelf-stable nature, and rapid cycle times. For example, Yarlagadda et al [91] were able to mold TUFF preforms in 1 to 3 min, while Goergen et al [92] were able to mold organosheet parts in under 2 min. Both used a heated press to raise the temperature of the material to allow for sufficient flexibility when forming.…”

Section: High-rate Manufacturingmentioning

confidence: 99%

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A Review of Recent Developments in Composites Made of Recycled Carbon Fiber Textiles

Barnett

Ghossein

2021

Textiles

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Carbon fiber recycling has garnered significant attention in recent years due to the large volume of manufacturing waste and upcoming end-of-life products that will enter the waste stream as the current generation of aircraft is retired from service. Recycled carbon fibers have been shown to retain most of their virgin mechanical properties, but their length is generally reduced such that continuous fiber laminates cannot be remade. As such, these fibers are typically used in low-performance applications including injection molding, extrusion/compression molding, and 3D printing that further degrade the fiber length and resulting composite properties. However, recent advances in the processing of long discontinuous fiber textiles have led to medium- to high-performance composites using recycled carbon fibers. This review paper describes the recent advances in recycled carbon fiber textile processing that have made these improvements possible. The techniques used to manufacture high-value polymer composites reinforced with discontinuous recycled carbon fiber are described. The resulting mechanical and multifunctional properties are also discussed to illustrate the advantages of these new textile-based recycled fiber composites over the prior art.

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Section: Deep Drawabilitymentioning

confidence: 99%

Section: High-rate Manufacturingmentioning

confidence: 99%

A Review of Recent Developments in Composites Made of Recycled Carbon Fiber Textiles

Barnett

Ghossein

2021

Textiles

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“…The generation of heat due to the eddy currents underlies three different mechanisms (Figure 2). 12 These three mechanisms can be separated into one fiber heating and two junction heating mechanisms. The fiber heating mechanism is also known as Joule losses.…”

Section: Fundamentals Of Induction Heatingmentioning

confidence: 99%

“…The first junction heating mechanism describes the heat generation due to contact resistance R jc between two fibers which are in contact at the junction. 12 The contact resistance value R jc can be measured by means of an experimental setup described in the study of Yarlagadda et al 3 Since this value depends on the contact pressure of the fibers, 3,12 the fiber volume fraction ϕ , the kind of fabric reinforcement, and the area weight m a are significant important.…”

Section: Fundamentals Of Induction Heatingmentioning

confidence: 99%

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Influence of thread count of carbon twill textile-reinforced polyamide 66 laminates on the inductive heating behavior

Becker

Mitscháng

2019

Journal of Thermoplastic Composite Materials

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This study addresses the experimental investigation of the influence of the thread count of carbon fiber (CF) twill textile-reinforced polyamide 66 laminates on their inductive heating behavior. By means of stationary heating experiments of laminates, different twill 2/2 fabrics have been investigated. The used twill 2/2 fabrics differ only in thread count and consequently in their area weight. Due to the different area weight, the manufactured laminates differ in the number of plies to guarantee an equal fiber volume content in each plate. In order to evaluate the heating behavior of the different specimens, the heating rates of both surfaces of the specimens were measured and compared. Thus, it was found that a lower thread count promotes a faster inductive heating of CF twill 2/2-reinforced polymer composites. Further investigations based on microsection analysis and measurements of rovings cross-section shape revealed that the increase of heating rates at lower thread counts relies more on the number of fabric layers. Through a higher number of fabric layers, the total contact area will be higher due to more interply and intraply contact interfaces which occur in the laminate.

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