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Bearing and bearing-bypass of pseudo-ductile thin-ply carbon/ glass hybrids

Fotouhi, Mohammad; Jalalvand, Meisam; Wu, Xun; Wisnom, Michael

Authors

Meisam Jalalvand

Xun Wu

Michael Wisnom



Abstract

The aim of this work was to investigate the bearing and bearing-bypass behaviour of thin ply pseudo-ductile carbon/glass hybrid laminates in tension. Therefore, a series of tests were performed based on ASTM D7248/D7248M–12 on a Quasi Isotropic (QI) thin-ply carbon/glass hybrid laminate consisting of thin-ply carbon TC35/standard thickness S-glass prepregs. For comparison, all S-glass and all TC35-carbon laminates were investigated as well. The results for the bearing tests showed that all the investigated configurations have a similar load-displacement manner with slight improvement in stiffness of the hybrid laminate compared with the all glass laminate. In the bearing tests, the hybrid and all-glass laminates experienced a mixed of shear out and bearing failure modes, whereas the all-carbon laminate experienced a mixture of shear out, bearing and cleavage failure modes. For the bearing-bypass tests, the hybrid laminate and all-glass laminates experienced higher displacement with a gradual failure compared with the all-carbon laminate that failed catastrophically with a sudden load drop. The hybrid configuration had the highest maximum load in the bypass loading and experienced a higher stiffness compared to the all-glass samples. The hybrid and all-glass laminates showed progressive and gradual failure modes in the bypass tests, with a mixture of shear out, bearing and net section failure modes, whereas the all-carbon laminate showed a mixture of bearing and net-section failure modes. Overall, the hybrid configuration showed similar mechanical properties to the baselines for the bearing tests. On the other hand, they behaved better than the all-carbon (higher displacement and more gradual failure) and better than the-all glass laminate (higher initial stiffness and maximum load).

Citation

Fotouhi, M., Jalalvand, M., Wu, X., & Wisnom, M. (2018, September). Bearing and bearing-bypass of pseudo-ductile thin-ply carbon/ glass hybrids. Presented at ICCS21

Presentation Conference Type Speech
Conference Name ICCS21
Start Date Sep 4, 2018
End Date Sep 7, 2018
Acceptance Date Jul 5, 2018
Publication Date Sep 5, 2018
Peer Reviewed Peer Reviewed
Keywords bearing, bearing-bypass, pseudo-ductile, thin-ply, carbon/ glass hybrids
Public URL https://uwe-repository.worktribe.com/output/861040
Additional Information Title of Conference or Conference Proceedings : ICCS21

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