Impact Response of Carbon Fibre Fabric/Thermoset-Thermo-Plastic Combined Polymer Composites

Lee, Joon Seok; Kim, Jong Won

doi:10.1177/096369351702600304

Cited by 10 publications

(6 citation statements)

References 20 publications

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“…The force-time graph provides information about the maximum force transmitted by the sample during the impact. The position of maximum force (Fmax) on the curve is located at the highest value on the Y axis [25][26][27] for each specimen. Average maximum forcestransmitted by the specimens with plain weave were 1890N for 3J, 3997N for 10J, 4917N for 15J, while for the twill weave they were 1957N for 3J, 4369N for 10J, 5607N for 15J.…”

Section: Impact Testsmentioning

confidence: 99%

Impact Resistance of Plain and Twill Fabric in GFRP Measured by Active Thermography

Strugała

Landowski

Zaremba

et al. 2018

Advanced Composites Letters

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This paper discusses the impact resistance of glass-fibre reinforced polymer (GFRP) composites depending on the type of reinforcement -plain or twill weave. The values of impact energy were: 3J, 10J and 15J. Specimens featuring twill weave transferred higher force during the impact as compared with plain weave specimens. It was observed that an increase of impact energy was accompanied by an increase of the disproportion in transferred forces, in favour of twill weave specimens. Impact damage (in both types of weave) occurring as a result of 3J impact was undetectable with active thermography method. The damage area measured by means of active thermography for impact energy values equal to 10J and 15J proved that the type of reinforcement significantly influences the impact resistance of a composite.This has been justified by smaller damage areas with high spot intensity of damage in plain weave specimens and highly dispersed damage with lower intensity in twill weave specimens.

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Section: Impact Testsmentioning

confidence: 99%

Impact Resistance of Plain and Twill Fabric in GFRP Measured by Active Thermography

Strugała

Landowski

Zaremba

et al. 2018

Advanced Composites Letters

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“…Thermoplastic materials can be used as a toughener for epoxy resin to improve the mechanical properties, such as tensile strength and modulus, of thermosetting materials [9,10]. The use of thermoplastic materials as a toughener for thermosetting resins has elicited considerable attention.…”

Section: Introductionmentioning

confidence: 99%

Improving Interlaminar Fracture Toughness and Impact Performance of Carbon Fiber/Epoxy Laminated Composite by Using Thermoplastic Fibers

Chen

Jiang

et al. 2019

Molecules

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The effects of thermoplastic polyimide (PI) and polypropylene (PP) fibers and areal density of toughened layer on interlaminar fracture toughness and impact performance of carbon fiber/epoxy (CF/EP) laminated composites were studied. Mode I interlaminar fracture toughness (GIC) was analyzed via double cantilever beam (DCB) tests. When comparing for the toughener type, PI played a positive role in enhancing the mode-I fracture toughness, while PP was not effective due to the less fiber bridge formed during composite curing. The toughening effects of areal density of PI were further investigated by end notched flexure (ENF) testing and low velocity impact testing to better understand the toughening mechanisms. The results revealed that the toughening effect reached its best effectiveness when the areal density of toughened layer was 30 g/m2. Compared with the control group, GIC and GIIC of CF/EP laminated composite were increased by 98.49% and 84.07%, and Fmax and Ee were enhanced by 92.38% and 299.08% under low velocity impact. There is no obvious delamination phenomenon on the surface of laminates after low velocity impact, indicating the improved interlaminar and impact performance of laminated composite.

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“…Despite possible positive toughening effects on the brittle thermoset matrix that could be caused by the thermoplastic fibers, it has been decided that the effects discussed could probably not be distinguished from the effects to be examined. 44,45 For this reason, in the thermoset route, no thermoplastic fibers were used.…”

Section: Methodsmentioning

confidence: 99%

Development and validation of recycled carbon fiber-based binder tapes for automated tape laying processes

Rimmel

May

Goergen

et al. 2018

Journal of Composite Materials

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The current growth in use of fiber reinforced polymer composites causes a strongly increasing amount of waste. Current approaches for fiber reinforced polymer composites recycling usually not exploit the potential of endless fibers as they are shortened during recycling and will not be properly aligned in the final product. Considering this, the present work aimed at the development of a recycling process for long recycled carbon fibers, where fiber length is preserved and load-related fiber orientation is possible. The starting point for the presented work was so-called slivers, which are long bundles of fibers resulting from a carding process that has been applied to fiber scrap. The main focus of this work was on the development of a binder mesh application rig that processes the sliver to a binder tape, processable in an automated tape laying process, which in turn required modifications to adapt to the novel tape. The functionality of the binder tape manufacturing process was validated with long recycled carbon fibers slivers with linear density of 4 g/m and fiber lengths between 70 and 120 mm. With the binder tape preform manufactured this way, two alternative routes for composite manufacturing were tested. First, the amount of binder was set so high that direct thermoplastic pressing of the preforms was possible. Second, the amount of binder was minimized, and the preforms were infiltrated with a thermoset resin system via resin transfer molding. While the thermoplastic route showed very deficient fiber–matrix adhesion, with the thermoset route, ≈68% of stiffness and ≈31% of strength of virgin fiber-based composites could be achieved in fiber direction in a unidirectional lay-up.

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Impact Response of Carbon Fibre Fabric/Thermoset-Thermo-Plastic Combined Polymer Composites

Cited by 10 publications

References 20 publications

Impact Resistance of Plain and Twill Fabric in GFRP Measured by Active Thermography

Impact Resistance of Plain and Twill Fabric in GFRP Measured by Active Thermography

Improving Interlaminar Fracture Toughness and Impact Performance of Carbon Fiber/Epoxy Laminated Composite by Using Thermoplastic Fibers

Development and validation of recycled carbon fiber-based binder tapes for automated tape laying processes

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