Flexural fatigue behavior of a pultruded basalt fiber reinforced epoxy plate subjected to elevated temperatures exposure

Wang, Zike; Yang, Zhaohui; Yang, Yongming; Xian, Guijun

doi:10.1002/pc.24124

Cited by 19 publications

(8 citation statements)

References 38 publications

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“…In many engineering applications, epoxy resin can be used as adhesives and matrices for all kinds of FRP products and have been well-investigated on their durability [14,15,16,17]. For VE resin, it has been widely used as a resin matrix for glass fiber-reinforced FRPs [18,19].…”

Section: Introductionmentioning

confidence: 99%

Water Absorption, Hydrothermal Expansion, and Thermomechanical Properties of a Vinylester Resin for Fiber-Reinforced Polymer Composites Subjected to Water or Alkaline Solution Immersion

Yin

Liu

et al. 2019

Polymers

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In the present paper, a vinyl ester (VE) resin, potentially used as a resin matrix for fiber-reinforced polymer (FRP) composite sucker rods in oil drilling, FRP bridge cables, or FRP marine structures, was investigated on its resistance to water and alkaline solution immersion in terms of water uptake, hydrothermal expansion, and mechanical properties. A two-stage diffusion model was applied to simulate the water uptake processes. Alkaline solution immersion led to a slightly higher mass loss (approx. 0.4%) compared to water immersion (approx. 0.23%) due to the hydrolysis and leaching of uncured small molecules (e.g., styrene). Water immersion caused the expansion of VE plates monitored with Fiber Bragg Grating (FBG). With the same water uptake, the expansion increased with immersion temperatures, which is attributed to the increased relaxation extent of the resin molecular networks. Although an obvious decrease of the glass transition temperatures (Tg) of VE due to water immersion (5.4 to 6.1 °C/1% water uptake), Tg can be recovered almost completely after drying. Tensile test results indicate that a short-term immersion (less than 6 months) enhances both the strength and elongation at break, while the extension of the immersion time degrades both the strength and elongation. The modulus of VE shows insensitive to the immersion even at elevated temperatures.

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Section: Introductionmentioning

confidence: 99%

Water Absorption, Hydrothermal Expansion, and Thermomechanical Properties of a Vinylester Resin for Fiber-Reinforced Polymer Composites Subjected to Water or Alkaline Solution Immersion

Yin

Liu

et al. 2019

Polymers

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“…Epoxy has the advantages of being transparent, light, and with high cohesion strength. Basalt fibers, as a new fiber material, not only display high strength and modulus, but also perform well on electrical insulation, sound insulation, thermal stability, anti‐oxidation, anti‐corrosion, anti‐radiation, and flame retardation . Epoxy/basalt fiber composites can integrate the advantages of the two materials and are expected to own excellent properties .…”

Section: Introductionmentioning

confidence: 99%

Synergistic reinforcement of epoxy/basalt fiber composites with dimensionally different nanoparticles

et al. 2018

Polymer Engineering & Sci

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Epoxy/basalt fiber composites were modified by 2D montmorillonite (MMT), 0D nanoSiO2, or 2D MMT/ 0D nanoSiO2 double nanoparticles. Mechanical tests showed that all the modified composites had considerably improved interlaminar shear strength and notch impact strength compared with the unmodified epoxy/basalt fiber composites, and that the double nanoparticle‐modified composites displayed the greatest improvement. X‐ray diffraction, transmission electron microscopy, and scanning electron microscopy revealed that co‐addition of 2D MMT and 0D nanoSiO2 into epoxy/basalt fiber composites produced a unique microstructure. The MMT was completely exfoliated into nanoscale mono‐sheets and interacted with nanoSiO2 particles to assemble into networks. The networks trapped many epoxy molecules within them and they tightly surrounded basalt fibers to form buffer layers. These results indicate that double nanoparticles of different dimensionality promote epoxy molecules to infiltrate between, combine with and coat basalt fibers more effectively than single nanoparticles, which facilitates better cooperation of epoxy and basalt fibers in resisting external forces. Modification with dimensionally different nanoparticles is an effective pathway to improve the performance of epoxy/basalt fiber composites and broaden their application fields. POLYM. ENG. SCI., 59:730–735, 2019. © 2018 Society of Plastics Engineers

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“…Both strength and modulus decrease with the increasing temperature for two braiding angle composites. This indicates that the mechanical resistance of a 3D five-directional braided carbon/epoxy composite to high temperature is dependent on a softening matrix and matrix decomposition [30,31]. In addition, molecular motion accelerates with rising temperature in the composites [32].…”

Section: Resultsmentioning

confidence: 99%

High Temperature Mechanical Response and Failure Analysis of 3D Five-Directional Braided Composites with Different Braiding Angles

Zuo

Jiang

2019

Materials

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Three-dimensional (3D) five-directional braided composites are extensively applied in aeronautics and national defense due to their integrity and structural superiorities. In this paper, 3D five-directional braided carbon/epoxy composites were manufactured, and the high temperature mechanical response and failure mechanisms of composites with braiding angles of 21° and 32° were studied. The out-of-plane compression tests of composites with different braiding angles were conducted at temperatures ranging from 25 °C to 180 °C. Then compression stress–strain curves, compression mechanical response, and failure modes of composites at high temperatures were analyzed and compared. The results show that compression stress–strain curves linearly increased at the initial stage and dropped at various degrees at different temperatures for composites with different braiding angles. The temperature and braiding angle were both important parameters affecting out-of-plane compression properties of 3D five-directional braided composites. Mechanical properties decreased with increasing temperature for both 21° and 32° specimens. Moreover, composites with a small braiding angle possessed higher properties at each temperature point. The morphologies manifested that the failures were a symmetric ±45° shear crack for 21° specimens and a thorough 45° shear crack for 32° specimens, and a 45° fracture weakened with increasing temperature.

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Flexural fatigue behavior of a pultruded basalt fiber reinforced epoxy plate subjected to elevated temperatures exposure

Cited by 19 publications

References 38 publications

Water Absorption, Hydrothermal Expansion, and Thermomechanical Properties of a Vinylester Resin for Fiber-Reinforced Polymer Composites Subjected to Water or Alkaline Solution Immersion

Water Absorption, Hydrothermal Expansion, and Thermomechanical Properties of a Vinylester Resin for Fiber-Reinforced Polymer Composites Subjected to Water or Alkaline Solution Immersion

Synergistic reinforcement of epoxy/basalt fiber composites with dimensionally different nanoparticles

High Temperature Mechanical Response and Failure Analysis of 3D Five-Directional Braided Composites with Different Braiding Angles

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