Fracture Toughness Analysis of Automotive-Grade Dual-Phase Steel Using Essential Work of Fracture (EWF) Method

Kumar, M.R. Sunil; Schmidová, Eva; Konopík, Pavel; Melzer, Daniel; Bozkurt, Fatih; Londe, Neelakantha V.

doi:10.3390/met10081019

Cited by 10 publications

(2 citation statements)

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“…Thanks to their exceptional energyabsorbing capacities, composites comply with safety regulations and are also the source of innovative design solutions. 5 Among the various composite materials, those incorporating semi-crystalline thermoplastic matrices are particularly attractive because of their ease of processing and recyclability. This choice aligns with sustainability objectives while offering versatile material for engineering applications.…”

Section: Introductionmentioning

confidence: 99%

“…The automotive, aerospace, and civil engineering sectors have witnessed the transformative integration of composites into key components such as tailgates and shock‐absorbing beams. Thanks to their exceptional energy‐absorbing capacities, composites comply with safety regulations and are also the source of innovative design solutions 5 …”

Section: Introductionmentioning

confidence: 99%

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Effect of processing conditions on morphology and mechanical damage in glass‐reinforced polypropylene composite

Nouira,

Shirinbayan,

Peixinho

et al. 2024

Polymer Composites

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This study aims to analyze the effect of processing parameters, particularly the cooling rate, on the morphology and mechanical properties of reinforced glass fiber polypropylene (GF‐PP) films. To achieve the objective, a multi‐scale analysis was performed to study the different morphology of neat PP and reinforced PP films obtained by controlling the thermal condition during the fabrication process. Films of PP with a thickness of about 100 μm have been prepared to observe the crystalline microstructure's formation and follow its kinetics on the scale of the spherulites. The same procedure was followed using a single glass fiber to obtain the mono‐composite film of PP by controlling the interface/interphase between the fiber and the matrix. Moreover, the dependence of the damage mechanisms on the spherulite diameters and the mechanical test conditions was established. The deformation mechanisms (intra and inter‐spherulitic damage) were analyzed qualitatively and quantitatively according to the controlled morphologies produced for the polymer and the composite, especially at the level of the transcrystalline phase. The results confirm that the processing parameters affect not only the width of the transcrystalline phase but also the morphology of the fiber‐matrix interface. Furthermore, increasing the thickness of the transcrystalline phase exhibited remarkably higher interfacial shear strength, as demonstrated by the single fiber fragmentation test.Highlights Impact of cooling rate on morphology and mechanical properties of glass fiber polypropylene (GF‐PP). Multi‐scale analysis to investigate the distinct morphologies of PP and GF‐PP. Deformation mechanism particularly intra and inter‐spherulitic damage. Attention to the impact on the transcrystalline phase and the fiber‐matrix interface. Influence of transcrystalline phase thickness on interfacial strength.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%