The effect of short fiber orientation on long term shear behavior of 40% glass fiber reinforced polyphenylene sulfide

Oseli, Alen; Prodan, Ted; Susič, Egon; Perše, Lidija Slemenik

doi:10.1016/j.polymertesting.2019.106262

Cited by 13 publications

(5 citation statements)

References 34 publications

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“…Until now, most studies have focused mainly on acquiring information about the orientation distribution of the fibers, the cellular structure in different parts of the injection product, and the effect of the above-mentioned aspects on the material properties. 6–8 Traditionally, the experimental method has been considered as the most reliable method for characterizing the effective mechanical properties of composite materials. Owing to the time-consuming nature and costly experimental testing, however, analytical or numerical prediction of the mechanical properties of composites is regarded as an alternative, or at least a complement, to experimental measurement.…”

Section: Introductionmentioning

confidence: 99%

Effective elastic modulus of foamed long glass fiber reinforced polypropylene: Experiment and computation

Cai

Zhao

Huang

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part L:

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The cross-section of an injection-molded plate of foamed long glass fiber reinforced polypropylene was analyzed using scanning electron microscopy. The distribution of the glass fiber orientations and the microcellular structure in the thickness direction were also studied. A multilayer representative volume element was constructed based on the fiber orientation tensors and the cell distribution. Nested and two-step homogenization methods based on the Mori–Tanaka and Voigt models were used to homogenize each layer of the representative volume element. Finally, classic laminate theory was used to obtain the effective elastic modulus of the material. The computed elastic moduli of the single-layer and multilayer representative volume element models with different loading directions predicted by the homogenization and finite element methods were compared with the experimental results. We found that the constructed multilayer representative volume element model can predict the elastic moduli of the foamed glass fiber reinforced polypropylene effectively and that the predicted results were accurate and stable.

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Section: Introductionmentioning

confidence: 99%

Effective elastic modulus of foamed long glass fiber reinforced polypropylene: Experiment and computation

Cai

Zhao

Huang

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part L:

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“…Measurements were performed in the segmental form at nine different temperatures between 20 and 100 • C with a step of 10 • C. A time-temperature superposition (tTS) principle was used for the characterization of the time-dependent behavior of rPP, with and without additive, for the improvement of mechanical properties (for a detailed analysis protocol, see Ref. [25]).…”

Section: Time-dependent Measurementsmentioning

confidence: 99%

Influence of Stabilization Additive on Rheological, Thermal and Mechanical Properties of Recycled Polypropylene

et al. 2022

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To decrease the amount of plastic waste, the use of recycling techniques become a necessity. However, numerous recycling cycles result in the mechanical, thermal, and chemical degradation of the polymer, which leads to an inefficient use of recycled polymers for the production of plastic products. In this study, the effects of recycling and the improvement of polymer performance with the incorporation of an additive into recycled polypropylene was studied by spectroscopic, rheological, optical, and mechanical characterization techniques. The results showed that after 20 recycling steps of mechanical processing of polypropylene, the main degradation processes of polypropylene are chain scission of polymer chains and oxidation, which can be improved by the addition of a stabilizing additive. It was shown that a small amount of an additive significantly improves the properties of the recycled polypropylene up to the 20th reprocessing cycle. The use of an additive improves the rheological properties of the recycled melt, surface properties, and time-dependent mechanical properties of solid polypropylene since it was shown that the additive acts as a hardener and additionally crosslinks the recycled polymer chains.

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“…Continuous carbon fiber-reinforced PEEK composites do not undergo creep when fibers are oriented in the load direction (only transverse or in-plane shear creep occurs with this type of composites) [15][16][17]. This is not the case for short carbon fiber-reinforced thermoplastic composites where creep occurs even in the fiber direction [18,19]. This phenomenon can lead to failure over extended periods [20,21], or make the part too deformed to be suitable for its intended use.…”

Section: Introductionmentioning

confidence: 99%

“…Methods linking time to temperature allow long-term behavior determination with short-term tests [14,26]. Moreover, the mechanical behavior of short carbon fiber-reinforced composites is anisotropic [11,12] as is time-dependent mechanical behavior [18,19,27].…”

Section: Introductionmentioning

confidence: 99%

Long-term creep behavior of a short carbon fiber-reinforced PEEK at high temperature: Experimental and modeling approach

Corveleyn

Lachaud

Berthet

et al. 2022

Composite Structures

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The effect of short fiber orientation on long term shear behavior of 40% glass fiber reinforced polyphenylene sulfide

Cited by 13 publications

References 34 publications

Effective elastic modulus of foamed long glass fiber reinforced polypropylene: Experiment and computation

Effective elastic modulus of foamed long glass fiber reinforced polypropylene: Experiment and computation

Influence of Stabilization Additive on Rheological, Thermal and Mechanical Properties of Recycled Polypropylene

Long-term creep behavior of a short carbon fiber-reinforced PEEK at high temperature: Experimental and modeling approach

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