Some principles for creating fibrous composites with a polymeric matrix

Gunyaev, G. M.

doi:10.1007/978-94-011-0515-6_2

Cited by 4 publications

(3 citation statements)

References 5 publications

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“…CF-containing layers (polymer-impregnated CF tape) were taken into account without the explicit consideration of enforcement (CFs), but their properties (such as the elastic and both tensile and compressive strengths) were calculated using formulas for composites unidirectionally reinforced with CFs (E CF >> E m ). Some equations were narrowed to the rule of mixtures and, as shown previously by the authors in [53], they correlated well with the computer simulation results in the case of unidirectional fibers [54][55][56][57].…”

Section: The Computer Simulation Techniquesupporting

confidence: 78%

“…and both tensile and compressive strengths) were calculated using formulas for composites unidirectionally reinforced with CFs (ECF >> Em). Some equations were narrowed to the rule of mixtures and, as shown previously by the authors in [53], they correlated well with the computer simulation results in the case of unidirectional fibers [54][55][56][57].…”

Section: The Ilss Testsupporting

confidence: 78%

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Structure and Deformation Behavior of Polyphenylene Sulfide-Based Laminates Reinforced with Carbon Fiber Tapes Activated by Cold Atmospheric Plasma

Kosmachev,

Panin,

Panov

et al. 2023

Polymers

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Low-temperature plasma treatment with atmospheric discharge with runaway electrons (DRE) was shown to be an efficient way to activate carbon fiber’s (CF) surface and subsequently increase its interlayer shear strength (ILSS) values. It was demonstrated that an acceptable ILSS level was achieved after a DRE plasma treatment duration of 15 min. The treatment of CFs resulted in their surface roughness being increased and their functional groups grafting. The XPS data showed a change in the chemical composition and the formation of reactive oxygen-containing groups. SEM examinations of the PPS/CF laminates clearly demonstrated a difference in adhesive interaction at the PPS/CF interface. After the DRE plasma treatment, CFs were better wetted with the polymer, and the samples cohesively fractured predominantly through the matrix, but not along the PPS/CF interface, as was observed for the sample reinforced with the untreated CFs. The computer simulation results showed that raising the adhesive strength enhanced the ILSS values, but reduced resistance to transverse cracking under the loading pin. In general, higher flexural strength of the PPS/CF laminates was achieved with a greater interlayer adhesion level, which was consistent with the obtained experimental data.

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Section: The Computer Simulation Techniquesupporting

confidence: 78%

Section: The Ilss Testsupporting

confidence: 78%

Structure and Deformation Behavior of Polyphenylene Sulfide-Based Laminates Reinforced with Carbon Fiber Tapes Activated by Cold Atmospheric Plasma

Kosmachev,

Panin,

Panov

et al. 2023

Polymers

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“…without explicitly considering the reinforcing CF-fabric. Its physical properties (such as elastic and shear moduli, as well as the tensile strength) were calculated analytically using the formulas for plastics unidirectionally reinforced with CFs [31,32]. Its behavior was taken as elastic.…”

Section: Statement Of the Computer Simulation Problemmentioning

confidence: 99%

Ultrasonic welding of lap joints of PEI plates with PEI/CF-fabric prepregs

Alexenko,

Tian,

Panin

et al. 2024

Frattura Ed Integrità Strutturale

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In this study, ultrasonic welding (USW) of lap joints of polyetherimide (PEI) plates (adherends) with carbon fiber (CF) prepregs impregnated with PEI was investigated. No energy director (ED) was used, so binder contents were varied in the prepregs to compensate for the lack of the polymer in the fusion zone. In addition, the effect of the USW parameters on the structure and the mechanical properties of the lap-joints were analyzed. The most homogeneous macrostructure, the maintained structural integrity of both the CF-fabric in the prepregs and the lap-joined PEI adherends, as well as the maximum strength properties (tensile strength) were revealed for the USW joints with the minimum polymer content in the prepreg. In this case, rising the USW time from 400 up to 800 ms radically changed the macrostructure of the fusion zone, while the strength properties did not vary significantly (shear stresses were 42–48 MPa). Computer simulation of the influence of the PEI/CF-fabric ratios in the prepregs on the deformation response of the USW joints showed that the prepreg thicknesses and, accordingly, the PEI/CF ratios did not exert a noticeable effect on the strain–stress (tensile) diagrams, while the determining factor was the adhesion level.

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Preparation of Reactoplastic Nano-Modified Polymer Composites. Part 5. Advantages of Using Nano-Modified Structural Carbon-Fiber Composites (A Review)*

Kolosov

2017

Chem Petrol Eng

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Some principles for creating fibrous composites with a polymeric matrix

Cited by 4 publications

References 5 publications

Structure and Deformation Behavior of Polyphenylene Sulfide-Based Laminates Reinforced with Carbon Fiber Tapes Activated by Cold Atmospheric Plasma

Structure and Deformation Behavior of Polyphenylene Sulfide-Based Laminates Reinforced with Carbon Fiber Tapes Activated by Cold Atmospheric Plasma

Ultrasonic welding of lap joints of PEI plates with PEI/CF-fabric prepregs

Preparation of Reactoplastic Nano-Modified Polymer Composites. Part 5. Advantages of Using Nano-Modified Structural Carbon-Fiber Composites (A Review)*

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