Toughening behavior of carbon/epoxy laminates interleaved by PSF/PVDF composite nanofibers

Hamed Saghafi; Roberto Palazzetti; Hossein Heidary; Tommaso Maria Brugo; Andrea Zucchelli; Giangiacomo Minak

doi:10.3390/app10165618

Toughening behavior of carbon/epoxy laminates interleaved by PSF/PVDF composite nanofibers

Hamed Saghafi, Roberto Palazzetti, Hossein Heidary, Tommaso Maria Brugo, Andrea Zucchelli, Giangiacomo Minak

Design, Manufacturing And Engineering Management

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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.

Original language	English
Article number	5618
Number of pages	12
Journal	Applied Sciences
Volume	10
Issue number	16
DOIs	https://doi.org/10.3390/app10165618
Publication status	Published - 13 Aug 2020

Keywords

composite laminates
nanofibers
fracture
polyvinylidene
polysulfone

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10.3390/app10165618Licence: CC BY 4.0

Saghafi-etal-AS-2020-Toughening-behavior-of-carbon-epoxy-laminates-interleaved-by-PSF-PVDFFinal published version, 4.07 MBLicence: CC BY 4.0

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title = "Toughening behavior of carbon/epoxy laminates interleaved by PSF/PVDF composite nanofibers",

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. ",

keywords = "composite laminates, nanofibers, fracture, polyvinylidene, polysulfone",

author = "Hamed Saghafi and Roberto Palazzetti and Hossein Heidary and Brugo, \{Tommaso Maria\} and Andrea Zucchelli and Giangiacomo Minak",

year = "2020",

month = aug,

day = "13",

doi = "10.3390/app10165618",

language = "English",

volume = "10",

journal = "Applied Sciences",

issn = "2076-3417",

publisher = "MDPI AG",

number = "16",

}

TY - JOUR

T1 - Toughening behavior of carbon/epoxy laminates interleaved by PSF/PVDF composite nanofibers

AU - Saghafi, Hamed

AU - Palazzetti, Roberto

AU - Heidary, Hossein

AU - Brugo, Tommaso Maria

AU - Zucchelli, Andrea

AU - Minak, Giangiacomo

PY - 2020/8/13

Y1 - 2020/8/13

N2 - 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.

AB - 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.

KW - composite laminates

KW - nanofibers

KW - fracture

KW - polyvinylidene

KW - polysulfone

U2 - 10.3390/app10165618

DO - 10.3390/app10165618

M3 - Article

SN - 2076-3417

VL - 10

JO - Applied Sciences

JF - Applied Sciences

IS - 16

M1 - 5618

ER -

Toughening behavior of carbon/epoxy laminates interleaved by PSF/PVDF composite nanofibers

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