Effects of UD and twill reinforcements in hybrid sheet molding compound laminates
RAIMONDI Luca, BRUGO Tommaso Maria, ZUCCHELLI Andrea, DONATI Lorenzo
download PDFAbstract. This work proposes a novel manufacturing solution to locally reinforce a Sheet Molding Compound (SMC) with continuous fiber prepreg in a single-step compression molding operation. An adapted SMC process allowing for the manufacturing of continuous carbon fiber-reinforced SMC was successfully implemented, and a layer of fabric was added to mitigate the waviness induced during processing. Plates with different stacking sequences were manufactured and used for mechanical characterization to understand the effect of hybridization over tensile and flexural properties. It emerges that hybridization led to a 137% increase in tensile strength and up to 147% rise in flexural modulus compared to the standard SMC baseline. Additionally, the hybridization process helped reduce the variability in elastic and strength properties.
Keywords
Carbon Fiber, Compression Molding, Sheet Molding Compound, Hybrid Composites
Published online 4/24/2024, 7 pages
Copyright © 2024 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: RAIMONDI Luca, BRUGO Tommaso Maria, ZUCCHELLI Andrea, DONATI Lorenzo, Effects of UD and twill reinforcements in hybrid sheet molding compound laminates, Materials Research Proceedings, Vol. 41, pp 523-529, 2024
DOI: https://doi.org/10.21741/9781644903131-58
The article was published as article 58 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] Zulueta K, Arrillaga A, Stelzer PS, Martinez I. An evaluation of the curing characteristics of thermosetting epoxy carbon fiber sheet molding compounds and validation through computer simulations and molding trials. J Appl Polym Sci 2021;138. https://doi.org/10.1002/app.50826
[2] Feraboli P, Peitso E, Cleveland T, Stickler PB, Halpin JC, Feraboli Paolo, Peitso Elof, Cleveland Tyler, Stickler HJC. Notched behavior of prepreg-based discontinuous carbon fiber/epoxy systems. Compos Part A Appl Sci Manuf 2009;40:289–99. https://doi.org/10.1016/j.compositesa.2008.12.012
[3] Laribi MA, TieBi R, Tamboura S, Shirinbayan M, Tcharkhtchi A, Dali H Ben, et al. Sheet Molding Compound Automotive Component Reliability Using a Micromechanical Damage Approach. Appl Compos Mater 2020;27:693–715. https://doi.org/10.1007/s10443-020-09831-5
[4] Falaschetti MP, Rondina F, Maccaferri E, Mazzocchetti L, Donati L, Zucchelli A, et al. Improving the crashworthiness of CFRP structures by rubbery nanofibrous interlayers. Compos Struct 2023;311. https://doi.org/10.1016/j.compstruct.2023.116845
[5] Rondina F, Falaschetti MP, Zavatta N, Donati L. Numerical simulation of the compression crushing energy of carbon fiber-epoxy woven composite structures. Compos Struct 2023;303. https://doi.org/10.1016/j.compstruct.2022.116300
[6] Mallick PK. Effect of fiber misorientation on the tensile strength of compression molded continuous fiber composites. Polym Compos 1986;7:14–8. https://doi.org/10.1002/pc.750070104.
[7] DG Taggart, RB Pipes, RA Blake, JW Gillespie Jr, R Prabhakaran JW. Properties of SMC composites. Cent Compos Mater Univ Delaware 1979.
[8] Trauth A, Weidenmann KA. Continuous-discontinuous sheet moulding compounds – Effect of hybridisation on mechanical material properties. Compos Struct 2018. https://doi.org/10.1016/j.compstruct.2018.05.048
[9] Trauth A, Weidenmann KA, Altenhof W. Puncture properties of a hybrid continuous-discontinuous sheet moulding compound for structural applications. Compos Part B Eng 2019;158:46–54. https://doi.org/10.1016/j.compositesb.2018.09.035
[10] Raimondi L, Brugo TM, Zucchelli A. Fiber misalignment analysis in PCM-UD composite materials by Full Field Nodal Method. Compos Part C Open Access 2021;5. https://doi.org/10.1016/j.jcomc.2021.100151
[11] Corbridge DM, Harper LT, De Focatiis DSA, Warrior NA. Compression moulding of composites with hybrid fibre architectures. Compos Part A Appl Sci Manuf 2017. https://doi.org/10.1016/j.compositesa.2016.12.018
[12] Feraboli P, Peitso E, Cleveland T, Stickler PB. Modulus measurement for prepreg-based discontinuous carbon fiber/epoxy systems. J Compos Mater 2009;43:1947–65. https://doi.org/10.1177/0021998309343028
[13] Visweswaraiah SB, Selezneva M, Lessard L, Hubert P. Mechanical characterisation and modelling of randomly oriented strand architecture and their hybrids – A general review. J Reinf Plast Compos 2018;37:548–80. https://doi.org/10.1177/0731684418754360
[14] Johanson K, Harper LT, Johnson MS, Warrior NA. Heterogeneity of discontinuous carbon fibre composites: Damage initiation captured by Digital Image Correlation. Compos Part A Appl Sci Manuf 2015;68:304–12. https://doi.org/10.1016/j.compositesa.2014.10.014
[15] Boisse P, Akkerman R, Carlone P, Kärger L, Lomov S V., Sherwood JA. Advances in composite forming through 25 years of ESAFORM. Int J Mater Form 2022;15. https://doi.org/10.1007/s12289-022-01682-8
[16] Qian CC, Deshpande A, Jesri M, Groves R, Reynolds N, Kendall K. A comprehensive assessment of commercial process simulation software for compression moulding of sheet moulding compound. ESAFORM 2021 – 24th Int. Conf. Mater. Form., 2021. https://doi.org/10.25518/esaform21.2771
