Applicability Analysis of Carbon Fiber Composite Materials for a Novel Lightweight Designing Lap Bar of Amusement Ride

Liu, Ran; Zhang, Peng-Fei; Shen, Gongtian; Zhang, Yong; Zhou, Wei; Xiao, Kun-ming; Li, Qing

doi:10.1002/adem.202201897

Adv Eng Mater

2023

DOI: 10.1002/adem.202201897

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Applicability Analysis of Carbon Fiber Composite Materials for a Novel Lightweight Designing Lap Bar of Amusement Ride

Ran Liu

Peng-Fei Zhang

Gongtian Shen

et al.

Abstract: The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/adem.202201897.

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2024

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Cited by 2 publications

References 27 publications

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Greenly building strong interactions between epoxy and carbon fiber fabric via vapor assisted ozone

Dong,

Qu,

Zhang

et al. 2024

Polymer Composites

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To enhance the performance of carbon fiber reinforced polymer (CFRP), it is crucial to establish robust interactions between epoxy and carbon fiber fabric (CFF). Herein, CFF was treated by an optimized H2O2/H2O/O3 oxidation method. The chemical and physical properties of the treated CFFs were meticulously characterized. For comparison, CFF, O3 treated CFF, and H2O/O3 treated CFFs were also examined. It was found that H2O2/H2O/O3 oxidized CFF more effectively than either O3 or H2O/O3. Reactive O groups were extensively grafted onto the surface of the H2O2/H2O/O3 oxidized CFF, leading to an increase in surface energy. Additionally, numerous defects were introduced on the surface of the H2O2/H2O/O3 oxidized CFF, significantly enhancing its surface roughness. Consequently, the interlaminar shear strength of H2O2/H2O/O3 oxidized CFF reinforced epoxy composite reached 63.31 ± 2.50 MPa, which is 43.3% higher than that of CFF reinforced epoxy composite. The fracture surface morphology and differential scanning calorimetry studies confirmed the presence of strong interfacial chemical interactions, while the increased surface roughness ensured robust interfacial physical interactions. Based on these findings, the mechanisms of the H2O2/H2O/O3 oxidized CFF reinforcing epoxy were proposed. The present work aims to give out some ideas for the fabrication of green and advanced CFRP.Highlights CFF was effectively oxidized by an optimized H2O2/H2O/O3 method eco‐friendly. Improved the interlaminar shear strength of the epoxy composite by 43.3%. Both the strong interfacial chemical and physical interactions were confirmed. The reinforcing mechanism is attributed to the robust interactions.

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Greenly building strong interactions between epoxy and carbon fiber fabric via vapor assisted ozone

Dong,

Qu,

Zhang

et al. 2024

Polymer Composites

View full text Add to dashboard Cite

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An acoustic emission based approach for damage pattern recognition in composite using linear discriminant analysis

Liu,

Qiao,

et al. 2024

Composites and Advanced Materials

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With the increasing application of composite components in various industries, the assessment of their structural integrity, the analysis of damage processes, and the identification of damage patterns are becoming increasingly important. The accuracy of the analysis relies heavily on the selection of features. This paper presents a new idea to extract effective damage features from acoustic emission (AE) signals and accurately identify different damages in the failure process of carbon fiber reinforced polymer specimens. The method combines Hilbert–Huang transform (HHT) and Linear Discriminant Analysis (LDA) to analyze the AE signals generated during the damage process of composite specimens. Specifically, the Hilbert marginal energy spectrum of the signals was regarded as frequency domain descriptors. The frequency domain descriptors were subsequently associated with the parametric features after dimensionality reduction by LDA to construct the classification framework named HHT-LDA. The results show that the frequency domain descriptors of the AE signals associated with each damage mode characterized distinctly. The frequency band of energy distribution in the raw waveform for matrix cracking, delamination, and fiber breakage are (100–150 kHz), (150–300 kHz), and (300–350 kHz), respectively. In addition, the three damage patterns mentioned above were successfully detected and recognized from the complex AE waveforms using HHT-LDA with 85% overall classification rate. This research idea will serve as a potential method for future composite damage pattern recognition and provide supporting knowledge for practical applications of AE monitoring.

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Applicability Analysis of Carbon Fiber Composite Materials for a Novel Lightweight Designing Lap Bar of Amusement Ride

Abstract: The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/adem.202201897.

Cited by 2 publications

References 27 publications

Greenly building strong interactions between epoxy and carbon fiber fabric via vapor assisted ozone

Greenly building strong interactions between epoxy and carbon fiber fabric via vapor assisted ozone

An acoustic emission based approach for damage pattern recognition in composite using linear discriminant analysis

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