Pseudo-ductility of unidirectional thin ply hybrid composites in longitudinal compression

Suwarta, Putu; Czel, Gergely; Fotouhi, Mohammad; Rycerz, Jacub; Wisnom, Michael

Abstract

The compression response of unidirectional thin-ply carbon (C) standard thickness S-glass (SG) hybrid composites is presented. Gradual failure up to high
strain has been demonstrated for [SG1/(C1/SG1)17] and [SG1/(C2/SG1)17] hybrid configurations. The favourable pseudo-ductile behaviour is due to progressive fragmentation and dispersed delamination of the thin ply carbon/epoxy layers. For the [SG1/(C3/SG1)17] configuration, sudden failure occurs at a lower strain, but still higher than the compression failure strain of the carbon fibres calculated from the manufacturer’s data sheet. The energy release rate concept can be used to qualitatively explain the behaviour of the different thickness hybrid laminates under compression.

• Presentation Conference Type: Presentation / Talk
• Conference Name: ASC 33rd Annual Technical Conference
• Start Date: Sep 24, 2018
• End Date: Sep 26, 2018
• Acceptance Date: Sep 6, 2018
• Deposit Date: Apr 18, 2019
• Peer Reviewed: Peer Reviewed
• Keywords: pseudo-ductility, unidirectional, thin ply, hybrid, compression
• Public URL: https://uwe-repository.worktribe.com/output/860963
• Additional Information: Title of Conference or Conference Proceedings : ASC 33rd Annual Technical Conference
• Contract Date: Apr 18, 2019