Thermoplastic composites technologies for future aircraft structures

Doll, Georg

doi:10.1007/978-3-658-29701-5_11

Cited by 2 publications

(1 citation statement)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Literature studies on the processing-property relationships for AFP manufacturing carbon ber (CF)based TPCs have focused on high-performance thermoplastic matrices such as polyetheretherketone (PEEK) [17][18][19][20][21], polyphenyl sul de (PPS) [22][23][24][25], polyetherimide (PEI) [26,27], polytherketone (PEKK) [28,29], or polyethersulfone (PES) [30]. PEEK matrices are more resistant to high temperature and chemical corrosion than other thermoplastic matrices, and as such, the majority of publications have focused almost exclusively on modeling AFP-related processing of CF/PEEK materials such as bonding, void dynamics, crystallization, residual stress development, and degradation.…”

Section: Introductionmentioning

confidence: 99%

The effects of processing parameters on the wedge peel strength of CF/PEEK laminates manufactured using a laser tape placement process

Zhang

Duan

Hong

et al. 2022

Int J Adv Manuf Technol

View full text Add to dashboard Cite

Manufacturing thermoplastic composites (TPC) with excellent mechanical properties requires advanced methods with reduced costs and better overall e ciencies. In this study, ber-reinforced thermoplastic polymer composite laminates were manufactured using an automated ber placement (AFP) manufacturing technology. The effects of processing temperature (from 320 ℃ to 500 ℃), lay-up speed (from 20 mm/s to 260 mm/s), consolidation force (from 100 N to 600 N), and prepreg tape tension (from 0 N to 9 N) on the quality of the resulting laminates manufactured using the laser AFP system were investigated. The interlayer bond strength was characterized using wedge peel tests on samples prepared with different process parameters. The studies were complemented by measurements of the thermal properties of the composites using different scanning calorimetry. The optimized process parameter windows were determined to be 360 ℃ to 400 ℃ for the irradiation temperature, 140 mm/s to 160 mm/s for the lay-up speed, 100 N for the consolidation force, and 3 N to 5 N for the prepreg tape tension, respectively. The microscopic analysis of the cross-sections and peel-damaged surfaces revealed that the different distributions of the resin matrix resulting from the different processing parameters affected the interlayer strength. These results may provide an important reference for manufacturing TPC used in aerospace, defense, and automotive applications.

show abstract

Section: Introductionmentioning

confidence: 99%

The effects of processing parameters on the wedge peel strength of CF/PEEK laminates manufactured using a laser tape placement process

Zhang

Duan

Hong

et al. 2022

Int J Adv Manuf Technol

View full text Add to dashboard Cite

show abstract

Laser In Situ Joining as a Novel Approach for Joining Large‐Scale Thermoplastic Carbon Fiber‐Reinforced Polymer Aircraft Structures

Pohl,

Langer,

Rauscher

et al. 2023

Adv Eng Mater

View full text Add to dashboard Cite

Thermoplastic matrix composites are a viable option to reduce the carbon footprint during the life of an aircraft due to their ability to be molten and resolidified again. Tape‐based layup processes, such as automated tape placement, are well‐examined but have not seen extensive use in large‐scale joining applications, since they have to be processed layer‐by‐layer. In contrast, the advanced laser in situ joining method (CONTIjoin) utilizes fully consolidated and cut‐to‐size multilayered laminates, enabling the continuous layup of tailored laminates aligned with the mechanical application requirements. Herein, sample joints are manufactured using CONTIjoin technology, describing the general process principle, and are compared with samples produced using a standard heat press process. The base material, carbon fiber‐reinforced LMPAEK (low‐melt polyaryletherketone) is characterized using infrared spectroscopy. Using a 3.5 kW carbon dioxide (CO2) laser (10.6 μm wavelength) coupled with highly dynamic beam deflection, multidirectional reinforced laminates with up to six plies are processed to produce 24‐ply plates. The influence of joining temperatures up to 400 °C on the joint quality is investigated. Cross‐cuts are examined and interlaminar shear strength tests are conducted. With CONTIjoin, maximum strengths of 48.5 MPa are observed, reaching over 90% of the heat press reference.

show abstract

Thermoplastic composites technologies for future aircraft structures

Cited by 2 publications

References 2 publications

The effects of processing parameters on the wedge peel strength of CF/PEEK laminates manufactured using a laser tape placement process

The effects of processing parameters on the wedge peel strength of CF/PEEK laminates manufactured using a laser tape placement process

Laser In Situ Joining as a Novel Approach for Joining Large‐Scale Thermoplastic Carbon Fiber‐Reinforced Polymer Aircraft Structures

Contact Info

Product

Resources

About