Improving precision in the cavity thickness measurement for fabric compaction
SOUSA Pedro, LIU Xiao, LOMOV Stepan V., IVENS Jan
download PDFAbstract. As seen in the first international compressibility benchmark, inaccuracies in the fabric stack thickness measurement, the approach to compliance correction and the non-parallelism between compaction plates resulted in highly inaccurate compression curves. The factors influencing the accuracy of thickness measurements in compaction tests were studied to provide a comprehensive guidance and measurement recommendations to improve upon the current procedures and enhance the accuracy of thickness measurements. These include the variability in the direct thickness measurements due to accuracy of the laser sensors measurements and the variability in the machine compliance measurements. In conclusion, while both thickness measurement methods yielded comparable results, it is noteworthy that the direct method exhibited greater variability in thickness measurements compared to the indirect method, which rely on the machine displacement. Minor changes in the rig’s displacement or in the orientations between compaction plates due to differences in the pressure distribution during compaction, combined with other sources of variability such as external interferences or vibrations from the compaction plate led to variations in measurement´s accuracy throughout the tests.
Keywords
Fabrics/Textiles, Compressibility, Mechanical Testing, Thickness Measurement Methods
Published online 4/24/2024, 10 pages
Copyright © 2024 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: SOUSA Pedro, LIU Xiao, LOMOV Stepan V., IVENS Jan, Improving precision in the cavity thickness measurement for fabric compaction, Materials Research Proceedings, Vol. 41, pp 477-486, 2024
DOI: https://doi.org/10.21741/9781644903131-53
The article was published as article 53 of the book Material Forming
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
References
[1] A. Endruweit and A. C. Long, “Analysis of compressibility and permeability of selected 3D woven reinforcements,” J Compos Mater, vol. 44, no. 24, pp. 2833–2862, 2010. https://doi.org/10.1177/0021998310369586
[2] A. X. H. Yong et al., “Experimental characterisation of textile compaction response: A benchmark exercise,” Compos Part A Appl Sci Manuf, vol. 142, 2021. https://doi.org/10.1016/j.compositesa.2020.106243
[3] D. May et al., “In-plane permeability characterization of engineering textiles based on radial flow experiments: A benchmark exercise,” Compos Part A Appl Sci Manuf, vol. 121, pp. 100–114, 2019. https://doi.org/10.1016/j.compositesa.2019.03.006
[4] Y. Ana, M. David, and E. Andreas, “Measurement of textile compaction response and out-of-plane permeability: 2nd international benchmarking exercise,” Proceedings of the 20th European Conference on Composite Materials – Composites Meet Sustainability (Vol 1-6). Lausanne, 26-30 June 2022.
[5] P. Sousa, S. V. Lomov, and J. Ivens, “Hurdles and limitations for design of a radial permeameter conforming to the benchmark requirements,” Front Mater, vol. 9, Sep. 2022. https://doi.org/10.3389/fmats.2022.871235
[6] Z. Yousaf, P. Potluri, and P. J. Withers, “Influence of Tow Architecture on Compaction and Nesting in Textile Preforms,” Applied Composite Materials, vol. 24, no. 2, 2017. https://doi.org/10.1007/s10443-016-9554-8
