This paper presents an investigation on fracture behavior of carbon/epoxy composite laminates interleaved with electrospun nanofibers. Three different mats were manufactured and interleaved, using only polyvinylidene fluoride (PVDF), only polysulfone (PSF), and their combination. Mode-I and Mode-II fracture mechanics tests were conducted on virgin and nanomodified samples, and the results showed that PVDF and PSF nanofibers enhance the Mode-I critical energy release rate (GIC) by 66% and 51%, respectively, while using a combination of the two registered a 78% increment. The same phenomenon occurred under Mode-II loading. SEM micrographs were taken, to investigate the toughening mechanisms provided by the nanofibers.
Toughening behavior of carbon/epoxy laminates interleaved by PSF/PVDF composite nanofibers / Saghafi H.; Palazzetti R.; Heidary H.; Brugo T.M.; Zucchelli A.; Minak G.. - In: APPLIED SCIENCES. - ISSN 2076-3417. - ELETTRONICO. - 10:16(2020), pp. 5618.1-5618.12. [10.3390/app10165618]
Toughening behavior of carbon/epoxy laminates interleaved by PSF/PVDF composite nanofibers
Saghafi H.
;Palazzetti R.
;Brugo T. M.;Zucchelli A.;Minak G.
2020
Abstract
This paper presents an investigation on fracture behavior of carbon/epoxy composite laminates interleaved with electrospun nanofibers. Three different mats were manufactured and interleaved, using only polyvinylidene fluoride (PVDF), only polysulfone (PSF), and their combination. Mode-I and Mode-II fracture mechanics tests were conducted on virgin and nanomodified samples, and the results showed that PVDF and PSF nanofibers enhance the Mode-I critical energy release rate (GIC) by 66% and 51%, respectively, while using a combination of the two registered a 78% increment. The same phenomenon occurred under Mode-II loading. SEM micrographs were taken, to investigate the toughening mechanisms provided by the nanofibers.| File | Dimensione | Formato | |
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