Evaluation of elastic-plastic response of discontinuous carbon fiber-reinforced thermoplastics: Experiments and considerations based on load-transfer-based micromechanical simulation

Nishikawa, Masaaki; Fukuzo, A.; Matsuda, Naoki; Hojo, Masaki

doi:10.1016/j.compscitech.2017.12.003

Cited by 11 publications

(9 citation statements)

References 15 publications

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“…One is developed in Takahashi Lab in the University of Tokyo (noted as DCFRTP1) and the other is developed by Nishikawa in Kyoto University (noted as DCFRTP2). 13,14,43 DCFRTP1 is made of carbon fiber TR50 and PA6, which are provided by the Industrial Technology Center of Fukui Prefecture, Japan. DCFRTP2 is made of carbon fiber T700 and PA6, which are provided by the Ibaraki Industries Corporation, Japan.…”

Section: Materials and Specimensmentioning

confidence: 99%

“…The DCFRTP1 and DCFRTP2 are in-plane oriented and the carbon fibers are randomly distributed in the in-plane direction. 13,43 According to the characteristic of carbon fiber orientation, DCFRTP1 and DCFRTP2 are simplified as a laminated structure in the PD model. Particles with an identical location in the thickness direction constitute one ply in the PD model.…”

Section: Pd Model Of Dcfrtpmentioning

confidence: 99%

“…1,2 Relevant scholars have carried out a lot of research on the influencing factors of mechanical properties, including feature size, constituent properties, and molding process. [3][4][5][6][7][8][9][10][11][12] Nishikawa et al 13 found that the fiber length affects the nonlinearity of the stress-strain relationship of DCFRTP. Long but discontinuous fibers effectively increase the yield point of the composite.…”

Section: Introductionmentioning

confidence: 99%

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A new numerical method for the tensile property analysis of discontinuous fiber-reinforced thermoplastics

Zhang

Jia

2021

Composites and Advanced Materials

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For predicting the mechanical properties of discontinuous carbon fiber-reinforced thermoplastics (DCFRTP), it is essential to consider the microstructure, including the fiber orientation and the properties of the constituting materials. In the present study, a heterogeneous particle model, considering the microscopic factors, is constructed on the basis of the peridynamic (PD) theory to investigate the tensile properties of DCFRTP. Two kinds of randomly oriented DCFRTP, with different constituents and volume fractions of carbon fiber, are used for the verification of this numerical model. A comparison between the PD simulations and the experimental results shows a good agreement. The effect of the model size on the prediction is discussed.

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Section: Materials and Specimensmentioning

confidence: 99%

Section: Pd Model Of Dcfrtpmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A new numerical method for the tensile property analysis of discontinuous fiber-reinforced thermoplastics

Zhang

Jia

2021

Composites and Advanced Materials

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“…Accordingly, several studies are being conducted to apply CFRTP to various fields such as automobiles, aerospace, and defense. However, disadvantages, such as poor fiber impregnation of thermoplastic resin and a lack of resin properties [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20], limits its application.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, impregnation is a problem, and low interfacial interaction with carbon fibers can compromise physical properties of the composite as well. Thus, studies on optimizing thermo-forming conditions suitable for matrix resin properties are needed [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. Accordingly, we intended to study compression molding conditions such as molding temperature, time, and pressure, which are suitable for aromatic PA matrices using film stacking process.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Carbon Fiber Reinforced Aromatic Polyamide Composites and Their Thermal Conductivities with a h-BN Filler

Lee

Bae

et al. 2020

Polymers

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In this study, a carbon fiber-reinforced thermoplastic composite was fabricated using a new aromatic polyamide (APA) as a matrix. Non-isothermal crystallization behaviors in the cooling process of APA resin (a semi-crystalline polymer) and composite were analyzed by using a differential scanning calorimeter (DSC). To determine the optimum molding conditions, processing parameters such as the molding temperature and time were varied during compression molding of the Carbon/APA composite. The tensile and flexural properties and morphologies of the fabricated composites were analyzed. Molding at 270 °C and 50 MPa for 5 min. showed relatively good mechanical properties and morphologies; thus, this condition was selected as the optimal molding condition. In addition, to enhance the thermal conductivity of the Carbon/APA composite, a study was conducted to add hexagonal boron nitride (h-BN) as a filler. The surface of h-BN was oxidized to increase its miscibility in the resin, which resulted in better dispersity in the APA matrix. In conclusion, a Carbon/APA (h-BN) composite manufactured under optimal molding conditions with an APA resin containing surface-treated h-BN showed a thermal conductivity more than twice that of the case without h-BN.

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Synergistic flame‐retardancy of lamellar cerium phenylphosphonate and aluminum diethylphosphinate towards suppressing “candlewick effect” of polyamide 6/carbon fiber composites

Chai

Feng

Yan

et al. 2023

J of Applied Polymer Sci

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In order to improve the flame retardancy of carbon fiber reinforced polyamide 6 (PA6/CF) composites and eliminate the “candlewick effect” caused by CFs, a lamellar cerium phenylphosphonate (CeHPP) was synthetized through reflux method and combined with aluminum diethylphosphinate (ADP) to prepare flame retardant carbon fiber reinforced polyamide 6 (PA6/CF) composites. Transmission electron micrographs (TEM) showed that both CeHPPs and ADPs dispersed homogenously in PA6 matrix. Thermogravimetric analysis (TGA) indicated that CeHPPs had excellent thermal stability and abundant char residues. Compared to PA6/CF, the limiting oxygen index (LOI) of PA6/CF‐10ADP increased from 27.5% to 36.4%, with no melt droplets during burning. After replacing 2 wt% ADPs to CeHPPs, PA6/CF‐8ADP‐2CeHPP reached to UL‐94 V‐0 rating with a LOI of 35.6% and the total heat release (THR) decreased by 37.2% in cone calorimeter test. CeHPPs had good synergistic effect with ADPs, and CeHPPs could form a continuous and compact char layer in PA6/CF composites to block the combustible gas spillage and heat transfer along the CFs, thus significantly attenuating the “candlewick effect” and improving the flame retardancy of PA6/CF composites.

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Evaluation of elastic-plastic response of discontinuous carbon fiber-reinforced thermoplastics: Experiments and considerations based on load-transfer-based micromechanical simulation

Cited by 11 publications

References 15 publications

A new numerical method for the tensile property analysis of discontinuous fiber-reinforced thermoplastics

A new numerical method for the tensile property analysis of discontinuous fiber-reinforced thermoplastics

Fabrication of Carbon Fiber Reinforced Aromatic Polyamide Composites and Their Thermal Conductivities with a h-BN Filler

Synergistic flame‐retardancy of lamellar cerium phenylphosphonate and aluminum diethylphosphinate towards suppressing “candlewick effect” of polyamide 6/carbon fiber composites

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