Effect of Cooling Rate on the Mechanical Strength of Carbon Fiber-Reinforced Thermoplastic Sheets in Press Forming

Tatsuno, Daichi; Yoneyama, T.; Kawamoto, Kiichiro; Okamoto, Masayuki

doi:10.1007/s11665-017-2664-0

Cited by 17 publications

(4 citation statements)

References 18 publications

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“…The degree of resin and fibre bonding is influenced by the cooling rate, which in turn impacts the final composite part's mechanical properties. [35][36][37].…”

Section: Tensile Strengthmentioning

confidence: 99%

Physical, Thermal and Mechanical Properties of Carbon Fibre/Polyphenylene Sulfide (CF/PPS) Composite at Different Tool Temperatures Fabricated by Hot Press

Emy Aqillah Sharif,

Nadlene Razali,

Hasanudin Hamdan

et al. 2024

ARAM

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Carbon fibre/polyphenylene sulfide (CF/PPS) composites have gained the attention in the aerospace industry due to its excellent impact strength, fire/smoke/toxicity (FST) performance, and chemical resistance. This study investigated the effect of hot press tool temperatures (Tt) on the physical, thermal, and mechanical on CF/PPS composites. The experimental procedure involved using PCL of CF/PPS composite and subjecting it to hot press forming at different tool temperatures ranging from 150°C to 195°C. The physical properties was characterized by surface energy measurement using the sessile drop method. Thermal properties were evaluated through the degree of crystallinity (DoC) determination using differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) where the percentage of the residual weight is calculated. The mechanical properties was assessed using tensile test. From the results, increasing the Ttwill enhances the surface energy, improving the adhesion and bonding between the matrix and CF, and the thermal stability of the composite materials. At Tt 180°C, the physical, thermal, and mechanical properties of CF/PPS composite component is at their best with the value of surface energy is 35.13%, the DoC is 25.00%, TGA is 74.74% and tensile strength is 793.80 MPa. This study provides valuable insights into the relationship between tool temperature and the physical, thermal, and mechanical properties of CF/PPS composites, offering guidance for manufacturing processes and composite material design in aerospace and other industries.

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“…The degree of resin and fibre bonding is influenced by the cooling rate, which in turn impacts the final composite part's mechanical properties. [35][36][37].…”

Section: Tensile Strengthmentioning

confidence: 99%

Physical, Thermal and Mechanical Properties of Carbon Fibre/Polyphenylene Sulfide (CF/PPS) Composite at Different Tool Temperatures Fabricated by Hot Press

Emy Aqillah Sharif,

Nadlene Razali,

Hasanudin Hamdan

et al. 2024

ARAM

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show abstract

“…For instance, Lee et al 10 calculated the spherulite size of polypropylene (PP) matrix in glass fiber/PP composites at different cooling rates and found that the spherulite size decreased with the increase of the cooling rate. Tatsuno et al 11 reported that the cooling rate during pressure holding was related to the mechanical property of press-formed CFRTP part, the flexural strength of the composites reached a higher value under lower cooling rate. Gao and Kim 4,12,13 believed that in low-energy impact, rapidly cooling was conducive to improving the damage resistance and tolerance of carbon fiber reinforced Polyether ether ketone (CF/PEEK) composites while slowly cooling improved the strength and modulus of the composites.…”

Section: Introductionmentioning

confidence: 99%

Effect of the cooling rate on the fracture toughness of carbon fiber reinforced thermoplastic composites

Zhao

Zhang

et al. 2022

Journal of Thermoplastic Composite Materials

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Carbon fiber (CF) reinforced thermoplastic composites have great potential in the aerospace industry. However, defects and delamination restrict the application of the composites. This study investigated the effect of cooling rate on the crystallization and inter-laminar fracture toughness of CF reinforced polyphenylene sulfide (CF/PPS) composites. Differential scanning calorimetry (DSC) results showed that the crystallinity of the composites decreased from 49.6% to 27.1% when the cooling rate increased from 2°C/min to 1000°C/min. Meanwhile, mode I and mode II fracture toughness, as measured by the double cantilever beam (DCB) and end-notched flexure (ENF) tests, increased by 486% and 52%, respectively. The fracture morphology of the composites after DCB tests showed that when the cooling rate was 2, 30, and 300°C/min, the crack propagation occurred inside the resin, which was a typical cohesive failure. Moreover, when the cooling rate was 1000°C/min, the crack propagation belonged to the combination of cohesive and adhesive failure, indicating that a high cooling rate was conducive to improving the fracture toughness. It also turned out that the contribution of the matrix deformation dominated the fracture toughness.

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“…Besides, resin infiltration is affected by the size of the components and excessive size of the components lead to insufficient infiltration. Compared with other manufacturing methods, hot stamping is widely employed in the fabrication of cCFRTs components with different shapes, for example, V-shape, [12,13] U-shape, [14][15][16] hemispherical [17][18][19] due to its short production cycle time and easy automatic production. In current, most researchers paid more attention to the influence of hot stamping process parameters, for example, pressure, mold temperature and cooling rate, on the shape accuracy and mechanical properties of the formed cCFRTs components.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Joule heating and deconsolidation behavior of continuous carbon fiber reinforced polyamide 6 composites under self‐resistance electric heating

et al. 2021

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As an effective heating method, self-resistance electric (SRE) heating was applied for welding, hot stamping and curing process of composites. In this study, the characterization of Joule heating and deconsolidation behavior of continuous carbon fiber reinforced polyamide 6 (CFR-PA6) laminate under SRE heating were investigated. A series of experiments were performed to build the relationship among geometry sizes, current density and temperature response. Then the relationship between the temperature rising rate and current density of CFR-PA6 laminate with twill weave fabric was determined. The temperature evolution of specimen with a hole under SRE heating was also discussed. Furthermore, the deconsolidation behavior of CFR-PA6 specimens under SRE heating as well as oven heating was characterized through macroscopic and mesoscopic properties. The interlaminar shear strength (ILSS) tests of specimens were also conducted. The results indicate that the temperature response of CFR-PA6 laminate is mainly determined by the current density and their relationship can be described by a quadratic function. It is found that voids appear both inside the fiber bundles and resin-rich areas owing to the thermal mismatch between the resin and carbon fibers after SRE heating, while no voids inside the fiber bundles were observed after oven heating. The deconsolidation behavior of laminate after SRE heating reduces the ILSS.

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Effect of Cooling Rate on the Mechanical Strength of Carbon Fiber-Reinforced Thermoplastic Sheets in Press Forming

Cited by 17 publications

References 18 publications

Physical, Thermal and Mechanical Properties of Carbon Fibre/Polyphenylene Sulfide (CF/PPS) Composite at Different Tool Temperatures Fabricated by Hot Press

Physical, Thermal and Mechanical Properties of Carbon Fibre/Polyphenylene Sulfide (CF/PPS) Composite at Different Tool Temperatures Fabricated by Hot Press

Effect of the cooling rate on the fracture toughness of carbon fiber reinforced thermoplastic composites

Characterization of Joule heating and deconsolidation behavior of continuous carbon fiber reinforced polyamide 6 composites under self‐resistance electric heating

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