Application of convolutional neural networks and ensemble methods in the fiber volume content analysis of natural fiber composites

DOI zum Zitieren der Version auf EPub Bayreuth: https://doi.org/10.15495/EPub_UBT_00008759
URN to cite this document: urn:nbn:de:bvb:703-epub-8759-0

Title data

Rothenhäusler, Florian ; Albuquerque, Rodrigo Queiroz ; Sticher, Marcel ; Kuenneth, Christopher ; Ruckdaeschel, Holger:
Application of convolutional neural networks and ensemble methods in the fiber volume content analysis of natural fiber composites.
In: Machine Learning with Applications. Vol. 19 (2025) . - 100609.
ISSN 2666-8270
DOI der Verlagsversion: https://doi.org/10.1016/j.mlwa.2024.100609

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Abstract

The incorporation of natural fibers into fiber-reinforced polymer composites (FRPC) has the potential to bolster their sustainability. A critical attribute of FRPC is the fiber volume content (FVC), a parameter that profoundly influences their thermo-mechanical characteristics. However, the determination of FVC in natural fiber composites (NFC) through manual analysis of light microscopy images is a labor-intensive process. In this work, it is demonstrated that the pixels from light microscopy images of NFC can be utilized to predict FVC using machine learning (ML) models. In this proof-of-concept investigation, it is shown that convolutional neural network-based models predict FVC with an accuracy required in polymer engineering applications, with a mean average error of 2.72 and an R2 coefficient of 0.85. Finally, it is shown that much simpler ML models, non-specialized in image recognition, besides being much easier and more efficient to optimize and train, can also deliver good accuracies required for FVC characterization, which not only contributes to the sustainability, but also facilitates the access of such models by researchers in regions with little computational resources. This study marks a substantial advancement in the area of automated characterization of NFC, and democratization of knowledge, offering a promising avenue for the enhancement of sustainable materials.

Further data

Item Type:	Article in a journal
Keywords:	Flax fibers, Sustainability, Machine learning, Image detection, Natural fiber composites, CNN
DDC Subjects:	600 Technology, medicine, applied sciences 600 Technology, medicine, applied sciences > 620 Engineering
Institutions of the University:	Faculties > Faculty of Engineering Science > Chair Polymer Materials > Chair Polymer Materials - Univ.-Prof. Dr.-Ing. Holger Ruckdäschel Faculties Faculties > Faculty of Engineering Science Faculties > Faculty of Engineering Science > Chair Polymer Materials
Language:	English
Originates at UBT:	Yes
URN:	urn:nbn:de:bvb:703-epub-8759-0
Date Deposited:	16 Dec 2025 14:25
Last Modified:	16 Dec 2025 14:27
URI:	https://epub.uni-bayreuth.de/id/eprint/8759

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