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The high strain rate tension behaviour of pseudo-ductile high performance thin ply composites

Fotouhi, Mohammad; Fuller, Jonathan; Longana, Marco; Jalalvand, Meisam; Wisnom, Michael R.

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Authors

Jonathan Fuller

Marco Longana

Meisam Jalalvand

Michael R. Wisnom



Abstract

In this study the effect of strain rate in tension on two different types of thin-ply pseudo-ductile laminates is reported. These comprised Unidirectional (UD) and quasi-isotropic (QI) hybrids made from low strain thin-ply carbon/epoxy and high strain glass/epoxy prepreg and all-carbon laminates made from thin-ply [±ϴ/0]s laminates referred to as angle-ply (AP) composites. Laminates were designed and subjected to a range of cross-head speeds from 2 mm/min (0.0003 s-1) to 10 m/s (100 s-1). The designed laminates were made from single or hybrids of low strain and high strain unidirectional prepregs, i.e. thin-ply Carbon/epoxy and Glass/epoxy, respectively. Dynamic stress–strain plots and details of the damage mechanisms were obtained for each sample and compared with the quasi-static test results. The investigated thin-ply UD and QI hybrid composite laminates showed excellent pseudo-ductility at different strain rates, whereas the AP laminates were strain rate dependent and pseudo-ductility decreased with increasing strain rate.

Citation

Fotouhi, M., Fuller, J., Longana, M., Jalalvand, M., & Wisnom, M. R. (2019). The high strain rate tension behaviour of pseudo-ductile high performance thin ply composites. Composite Structures, 215, 365-376. https://doi.org/10.1016/j.compstruct.2019.02.068

Journal Article Type Article
Acceptance Date Feb 18, 2019
Online Publication Date Feb 19, 2019
Publication Date May 1, 2019
Publicly Available Date Feb 20, 2020
Journal Composite Structures
Print ISSN 0263-8223
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 215
Pages 365-376
DOI https://doi.org/10.1016/j.compstruct.2019.02.068
Keywords pseudo-ductility, hybrid, quasi-isotropic, angle-ply, high strain rate, thin-ply
Public URL https://uwe-repository.worktribe.com/output/847475
Publisher URL https://doi.org/10.1016/j.compstruct.2019.02.068
Additional Information Additional Information : This is the author's accepted manuscript. The final published version is available here: https://doi.org/10.1016/j.compstruct.2019.02.068

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