Failure of Polymer Beams Reinforced with Glass Fibers

Czechowski, L.; Gralewski, J.; Kubiak, Tomasz

doi:10.1007/s11029-020-09872-8

Cited by 3 publications

(5 citation statements)

References 43 publications

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“…The PEI in the base material surface and the molecules in the resin film form a good cross-linked interlocking structure with stable and high joint strength. At this time, the internal stress gradually increases the laminate delamination when the shear force parallel to the welding area is greater than the interlaminar shear strength 33 (Figure 8d). When the resin molecules in the molten state are entangled with higher strength structures under certain conditions, the fibers can withstand a large amount of load along the direction in which they are arranged.…”

Section: Analysis Of Failure Mode Typesmentioning

confidence: 99%

Ultrasonic welded joint failure mode of glass fiber/polyetherimide composites

Wang

Xiao

Song

et al. 2023

J of Applied Polymer Sci

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Failure modes of ultrasonic welding joints were investigated by using glass fiber/polyetherimide (PEI) composite material as a base material, and the mechanism of welding pressure with different failure modes and the effects of failure modes on joint strength were explored. The results demonstrate that ultrasonic welding joints have six failure scenarios. Peeling of PEI film and the base material surface on both sides, peeling of PEI film and the base material surface on one side, peeling of surface fiber and surface resin, laminate delamination, fiber breakage, ablation damage respectively. The welding pressure mainly affects the proportion of the first three failure modes. When the welding pressure increases, the proportion of the second failure mode is obvious, meantime the proportion of the first failure mode gradually decreases, the welding pressure mainly affects the proportion of the first three failure modes.The welding joint failure is often a mixed failure generated by the coupling of the abovementioned six failure modes rather than a single failure mode. The evolution of heat distribution with P w was simulated using COMSOL. The simulation curves represent the evolution of the weld interface temperature at different position.

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Section: Analysis Of Failure Mode Typesmentioning

confidence: 99%

Ultrasonic welded joint failure mode of glass fiber/polyetherimide composites

Wang

Xiao

Song

et al. 2023

J of Applied Polymer Sci

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“…Nowadays, steel-based sheet piles are very often replaced by hybrid composite materials like a polyvinyl chloride matrix locally reinforced with glass fibers [15]. Such materials are characterized by extremely high resistance to scratches or cracks, high tightness, and lack of corrosion.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Moffat et al [14] showed a comparison between BOTDR, strain gauges, inclinometers, and topographic survey methods to monitor a multiple-anchor pile wall in 28.5 m deep excavation. Nowadays, steel-based sheet piles are very often replaced by hybrid composite materials like a polyvinyl chloride matrix locally reinforced with glass fibers [15]. Such materials are characterized by extremely high resistance to scratches or cracks, high tightness, and lack of corrosion.…”

Section: Introductionmentioning

confidence: 99%

“…Figure 1 shows the PVC geotechnical profiles for applications in the area of civil engineering as retaining walls. Those types of beams are exposed to significant ground pressure and are designed to withstand heavy loads [15]. This paper focuses on direct integration of optical fiber sensor to PVC profile using standard communication cable coatings (250 µm, 900 µm, and 3 mm).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Optical Fiber Sensor for PVC Sheet Piles Monitoring

2021

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This paper examined the impact of optical fiber sensor design, and its integration to PVC (polyvinyl chloride) sheet piles, on deflection and strain monitoring. Optical fiber sensors based on Brillouin light backscattering (BLS) were prepared, as they can provide accurate strain and deflection measurement results. However, depending on the application of sheet piles systems, high deformation of PVC elements can be observed. Therefore, a fiber sensor design is not trivial. Three types of optical fiber coatings and their integration with PVC sheet piles were investigated. The effect on the value of compressive and tensile strain were analyzed. It has been experimentally proven that PVC sheet piles monitoring, based on BLS method, can be realized using optical fibers with 250 µm, 900 µm, and 3 mm coating diameter. Achieved results are in line with theory. Correction coefficient necessary for 900 µm and 3 mm coatings has been proposed and used to ensure proper strain measurement. It was found that 250 µm coating fiber based sensors can be utilized for PVC strain measurement under low deflection (>1.2 m beam length). On the other hand, sensors based on 3 mm coating fiber, due to a high level of linearity, can be applied to deflection distance measurement under high deformation.

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The Influence of the Amount of Technological Waste on the Performance Properties of Fibrous Polymer Composites

Dobránsky,

Gombár,

Fejko

2024

J. Compos. Sci.

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The objective of the experimental analysis was to assess the impact of the reuse of technological waste (recyclate) on the selected performance properties of the fibrous polymer composite used to produce components for the automotive industry by injection molding technology. Polyphthalamide (PPA), which belongs to a group of high-tech polymers, was chosen as the analyzed material. In accordance with the set goals, the rheological, mechanical, and structural properties of the material were evaluated using ANOVA analysis in the experimental part of the work, depending on the mass ratio of the recycled material added to the virgin material. The influence of the proportion of recycled material on the lifetime of moldings by the method of their exposure at an elevated temperature for a defined time was also assessed. During the research, it was found that at a concentration of up to 40 wt. % of recyclate, its mechanical properties do not change significantly. At a concentration of 50 wt. %, there is a rapid decrease in mechanical properties. In the long term, it can also be said that the addition of recyclate significantly affects the service life of the components. No significant changes in morphology were observed during the analysis of structural properties.

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Failure of Polymer Beams Reinforced with Glass Fibers

Cited by 3 publications

References 43 publications

Ultrasonic welded joint failure mode of glass fiber/polyetherimide composites

Ultrasonic welded joint failure mode of glass fiber/polyetherimide composites

Optical Fiber Sensor for PVC Sheet Piles Monitoring

The Influence of the Amount of Technological Waste on the Performance Properties of Fibrous Polymer Composites

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