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Article

Modeling Flexural Failure in Carbon-Fiber-Reinforced Polymer Composites

1
Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX 78712, USA
2
Department of Mechanical and Aerospace Engineering, New Mexico State University, Las Cruces, NM 88003, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Jiadeng Zhu
J. Compos. Sci. 2022, 6(2), 33; https://doi.org/10.3390/jcs6020033
Received: 23 December 2021 / Revised: 10 January 2022 / Accepted: 11 January 2022 / Published: 19 January 2022
(This article belongs to the Special Issue Carbon Fiber Composites, Volume II)
Flexural testing provides a rapid and straightforward assessment of fiber-reinforced composites’ performance. In many high-strength composites, flexural strength is higher than compressive strength. A finite-element model was developed to better understand this improvement in load-bearing capability and to predict the flexural strength of three different carbon-fiber-reinforced polymer composite systems. The model is validated against publicly available experimental data and verified using theory. Different failure criteria are evaluated with respect to their ability to predict the strength of composites under flexural loading. The Tsai–Wu criterion best explains the experimental data. An expansion in compressive stress limit for all three systems was observed and is explained by the compression from the loading roller and Poisson’s effects. View Full-Text
Keywords: carbon fiber; fiber-reinforced polymer composite; flexural strength; modeling; failure mode; finite-element analysis carbon fiber; fiber-reinforced polymer composite; flexural strength; modeling; failure mode; finite-element analysis
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MDPI and ACS Style

Burgani, T.d.S.; Alaie, S.; Tehrani, M. Modeling Flexural Failure in Carbon-Fiber-Reinforced Polymer Composites. J. Compos. Sci. 2022, 6, 33. https://doi.org/10.3390/jcs6020033

AMA Style

Burgani TdS, Alaie S, Tehrani M. Modeling Flexural Failure in Carbon-Fiber-Reinforced Polymer Composites. Journal of Composites Science. 2022; 6(2):33. https://doi.org/10.3390/jcs6020033

Chicago/Turabian Style

Burgani, Thiago d.S., Seyedhamidreza Alaie, and Mehran Tehrani. 2022. "Modeling Flexural Failure in Carbon-Fiber-Reinforced Polymer Composites" Journal of Composites Science 6, no. 2: 33. https://doi.org/10.3390/jcs6020033

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