Off-axis tensile performance of notched resin-infused thermoplastic 3D fibre-reinforced composites
Journal article
Authors | Shah, S.Z.H., Megat-Yusoff, P.S.M., Sharif, T., Hussain, S.Z. and Choudhry, R.S. |
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Abstract | This study presents a comparison of off-axis tensile performance for notched (open-hole) and unnotched (no-hole) 3D fibre reinforced composites (FRC) specimens having two different types of matrices. The two matrix systems compared are, a novel infusible thermoplastic (Elium) resin and conventional thermoset (epoxy). Three different configurations, (one unnotched and two notched) were tested for each 3D-FRC. The resulting notched net strength, gross strength, failure strains, notch sensitivity and energy absorbed by each configuration were evaluated and compared. Additionally, 2D digital image correlation (DIC) was used to evaluate full-field strain distribution in each case. The results elucidate that thermoplastic 3D-FRCs are notch insensitive irrespective of the notch size and possess higher failure strains (around 30 percent in the cases investigated) and energy absorption (around 33 percent in the cases investigated). In contrast, thermoset 3D-FRC appeared to be notch sensitive, as the notched size increased, and they failed at lower axial strains (up to 60 percent reduction compared to unnotched specimens for the size investigated). Thus, resin-infused thermoplastic off-axis configurations are effective for composite joint applications, particularly in notch-insensitive designs, requiring higher energy absorption and failure strains. |
Keywords | 3-Dimensional reinforcement; Thermoplastic resin (elium); Notched tension; Digital image correlation |
Year | 2022 |
Journal | Mechanics of Materials |
Journal citation | 175, pp. 1-9 |
Publisher | Elseveir |
ISSN | 1872-7743 |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.mechmat.2022.104478 |
Web address (URL) | https://doi.org/10.1016/j.mechmat.2022.104478 |
Publisher's version | License File Access Level Open |
Output status | Published |
Publication dates | |
Online | 27 Sep 2022 |
Publication process dates | |
Accepted | 18 Sep 2022 |
Deposited | 04 Nov 2022 |
https://repository.derby.ac.uk/item/9qy98/off-axis-tensile-performance-of-notched-resin-infused-thermoplastic-3d-fibre-reinforced-composites
Download files
Publisher's version
2022 Choudhry-Shah Mechanics of Materials Off-axis notched.pdf | ||
License: CC BY 4.0 | ||
File access level: Open |
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