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Augmenting the mechanical performance of three-dimensional woven composites by the synergistic effect of fabric architecture and interfacial interaction of carbon nanotubes

Authors
Majumdar, AbhijitRathi, AnkitMawkhlieng, Unsanhame
Issue Date
Dec-2023
Publisher
John Wiley and Sons Inc
Keywords
3D woven fabric; mechanical properties; MWCNTs; textile composite; UHMWPE
Citation
Polymer Composites
Indexed
SCIE
SCOPUS
Journal Title
Polymer Composites
URI
https://scholarworks.gnu.ac.kr/handle/sw.gnu/68968
DOI
10.1002/pc.27944
ISSN
0272-8397
1548-0569
Abstract
Three-dimensional (3D) woven fabrics offer many advantages over planar woven fabrics for composite applications. Because of the complex structure of 3D woven fabrics, an in-depth investigation is needed to understand the effects of fabric architecture and nanofillers on the mechanical and failure behavior of 3D woven composites. The present study investigates the effect of 3D woven ultrahigh-molecular-weight polyethylene (UHMWPE) orthogonal fabric architecture, with or without nanofillers, on the mechanical properties of composites. 3D woven orthogonal fabrics with varying proportions of stuffer-to-binder (S/B) yarns were manufactured and reinforced with an epoxy (EP) matrix. Multiwalled carbon nanotubes (MWCNTs) were infused as nanofillers to improve the interaction between the UHMWPE fabric and the EP matrix. 3D woven composite having an S/B ratio of 2:1 showed the maximum tensile strength and toughness. On the other hand, 3D woven composite with an S/B ratio of 4:1 showed higher flexural strength and impact resistance. The failure mechanism was also studied by examining the fractured surfaces of composites, which revealed matrix cracking, fiber pullout, predominant binder yarn failure, and yarn slippage. From this study, it is understood that for 3D fabric reinforcement, a balance between structural integrity and load-bearing capacity of yarns is decisive, whereas for the matrix, the incorporation of MWCNTs is found to be advantageous. Highlights: The role of structure of 3D woven orthogonal fabric on the mechanical behaviour of the UHMWPE-epoxy composite is investigated. The addition of functionalized MWCNTs improves the tensile, flexural, and impact properties. The decisive role of the ratio of stuffer-to-binder yarns is established. Matrix cracking, debonding, and yarn failure are observed during tensile failure. © 2023 Society of Plastics Engineers.
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