The effect of moulding process parameters on interlaminar properties of CF/PEEK composite laminates

Dai, Guangming; Zhan, Lihua; Guan, Chenglong; Huang, Minghui

doi:10.1177/0954008320903768

Cited by 26 publications

(7 citation statements)

References 19 publications

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“…Although thermoplastic composites were extensively characterized under quasistatic tensile, compressive, shear, and fatigue loading conditions [ 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 ], few studies concerned the dynamic mechanical behavior of thermoplastic composites at elevated temperatures. Thermoplastic composites are significantly sensitive to temperature.…”

Section: Introductionmentioning

confidence: 99%

The Out-of-Plane Compression Response of Woven Thermoplastic Composites: Effects of Strain Rates and Temperature

et al. 2021

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The dynamic mechanical response of high-performance thermoplastic composites over a wide range of strain rates is a challenging research topic for extreme environmental survivability in the field of aerospace engineering. This paper investigates the evolution of the dynamic properties of woven thermoplastic composites with strain rate and damage process at elevated temperatures. Out-of-plane dynamic-compression tests of glass-fiber (GF)- and carbon-fiber (CF)-reinforced polyphenylene sulfide (PPS) composites were performed using a split Hopkinson pressure bar (SHPB). Results showed that thermoplastic composites possess strain-rate strengthening effects and high-temperature weakening dependence. GF/PPS and CF/PPS composites had the same strain-rate sensitivity (SRS) below the threshold strain rate. The softening of the matrix at elevated temperatures decreased the modulus but had little effect on strength. Some empirical formulations, including strain-rate and temperature effects, are proposed for more accurately predicting the out-of-plane dynamic-compression behavior of thermoplastic composites. Lastly, the final failure of the specimens was examined by scanning electron microscopy (SEM) to explore potential failure mechanisms, such as fiber-bundle shear fracture at high strain rates and stretch break at elevated temperatures.

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Section: Introductionmentioning

confidence: 99%

The Out-of-Plane Compression Response of Woven Thermoplastic Composites: Effects of Strain Rates and Temperature

et al. 2021

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“…Carbon fiber reinforced resin matrix composites are widely used in aerospace, energy and automotive industries due to their high specific stiffness and strength, low density, corrosion resistance, fatigue resistance and strong designability. 1 –4 As a typical low-cost carbon fiber prepared by dry-jet wet spinning, T700SC carbon fiber has the characteristics of high strength, approximate circular cross-section structure and few internal defects. 5 –7 Compared with carbon fibers prepared by wet spinning, T700SC carbon fiber is more suitable for preparing pressure vessel products, which has the advantages of high-speed drawing, fast spinning speed and high production efficiency.…”

Section: Introductionmentioning

confidence: 99%

Reinforced interface and mechanical properties of high strength carbon fiber composites

Jiao

Yao

Zhou

et al. 2020

High Performance Polymers

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Based on the surface analysis of carbon fiber, an epoxy resin matrix with good wettability to carbon fibers had been developed and studied, and the influence of winding tension on the interface and mechanical properties of the composite were studied. The surface morphology of carbon fiber and the active functional groups of sizing agent were analyzed. In order to form a good interface combination, the wettability between carbon fibers and epoxy resin matrix was characterized by dynamic contact angle. The winding tension played an important role in the mechanical properties of composites. Therefore, a kind of carbon fiber reinforced composites, Naval Ordnance Laboratory (NOL) rings were fabricated using different winding tensions. Particularly, when the winding tension was 30 N, the interfacial bonding between carbon fibers and resin matrix was the most compact and firm. The tensile strength and interlaminar shear strength (ILSS) of NOL rings reached high values, 2712 MPa and 75 MPa, respectively.

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“…Mechanical properties of woven composites depend on not only their constituents but also the manufacturing process. [4][5][6][7] Manufacturing process modifies the internal structure of composite materials. 5,6 In the popular processes for woven composite parts, such as thermoforming and resin transfer molding, a significant change of yarn angle (the angle between the weft and warp yarns) would occur due to the in-plane shear in the preforming process, particularly for the part with double curvature features ( Figure 1).…”

Section: Introductionmentioning

confidence: 99%

Analysis of the influence of yarn angle on the mechanical behaviors of cured woven composites

Liang

Zhang

Gao

2020

High Performance Polymers

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Manufacturing process would modify the yarn angle of woven composites. To have a high-fidelity mechanical analysis, it is necessary to study its potential impact. In this article, experimental tests were specifically designed and conducted to investigate the influence of yarn angle on the mechanical behaviors of cured woven composites. The results show that yarn angle variation has a significant impact on the elastic modulus, Poisson’s ratio, and yield stress. The tensile deformation along yarn directions and shear deformation between two yarns were also investigated and their coupling with yarn angle variation was analyzed. It shows that when the yarn angle variation (from 90°) is less than 10°, the influence of the tension–shear coupling on the tensile behavior along yarn directions and shear behavior between two yarn directions is small and can be neglected. When the yarn angle variation is more than 20°, the influence of tension–shear coupling is significant and must be accounted for in constructing the constitutive law for the cured non-orthogonal woven composites.

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The effect of moulding process parameters on interlaminar properties of CF/PEEK composite laminates

Cited by 26 publications

References 19 publications

The Out-of-Plane Compression Response of Woven Thermoplastic Composites: Effects of Strain Rates and Temperature

The Out-of-Plane Compression Response of Woven Thermoplastic Composites: Effects of Strain Rates and Temperature

Reinforced interface and mechanical properties of high strength carbon fiber composites

Analysis of the influence of yarn angle on the mechanical behaviors of cured woven composites

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