Compression and buckling after impact response of resin-infused thermoplastic and thermoset 3D woven composites

Shah, S.Z.H. and Megat-Yusoff, P.S.M. and Karuppanan, S. and Choudhry, R.S. and Ud Din, I. and Othman, A.R. and Sharp, K. and Gerard, P. (2021) Compression and buckling after impact response of resin-infused thermoplastic and thermoset 3D woven composites. Composites Part B: Engineering, 207 .

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Damage tolerance of a unique resin-infused thermoplastic (Elium) 3D fibre-reinforced composite (3D-FRC) is compared with the conventional resin-infused thermoset (Epoxy) 3D-FRC using compression after impact (CAI) tests and finite element simulations. Higher damage tolerance is demonstrated for the thermoplastic 3D-FRC as its CAI failure strength and CAI stiffness is nearly insensitive to the impact energy levels and subsequent damage, while in contrast, both these properties for the thermoset 3D-FRC get compromised significantly. The buckling performance shows a gradual, almost linear, reduction in critical buckling (44.5 reduction in 0�100 J) for the thermoplastic 3D-FRC. In comparison, the thermoset 3D-FRC shows a much steeper drop in critical buckling, which becomes more pronounced for the higher impact energy cases (84.5 reduction in 0�100 J). It is postulated that the local plastic deformation of the thermoplastic matrix at the impact site as well as better interfacial adhesion is responsible for its better damage tolerance. © 2020 Elsevier Ltd

Item Type:Article
Impact Factor:cited By 5
Uncontrolled Keywords:Buckling; Epoxy resins; Fiber reinforced plastics; Plastics; Resins; Thermosets, 3D woven composites; Compression after impact tests; Failure strength; Finite element simulations; Impact energy levels; Interfacial adhesions; Local plastic deformation; Thermoplastic matrices, Damage tolerance
ID Code:23910
Deposited By: Ms Sharifah Fahimah Saiyed Yeop
Deposited On:19 Aug 2021 13:24
Last Modified:19 Aug 2021 13:24

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