Pseudo-ductility and reduced notch sensitivity in multi-directional all-carbon/epoxy thin-ply hybrid composites

Gergely Czél; Tamas Rev; Meisam Jalalvand; Mohamad Fotouhi; Marco L. Longana; Oliver J. Nixon-Pearson; Michael R. Wisnom

doi:10.1016/j.compositesa.2017.10.028

Pseudo-ductility and reduced notch sensitivity in multi-directional all-carbon/epoxy thin-ply hybrid composites

Gergely Czél^*, Tamas Rev, Meisam Jalalvand, Mohamad Fotouhi, Marco L. Longana, Oliver J. Nixon-Pearson, Michael R. Wisnom

^*Corresponding author for this work

Research output: Contribution to journal › Article (Academic Journal) › peer-review

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Abstract

Un-notched and notched tensile response and damage accumulation of quasi-isotropic carbon/epoxy hybrid laminates made of ultra-high modulus and intermediate modulus carbon fibre/epoxy thin-ply prepregs were studied. It was confirmed that the ply fragmentation demonstrated previously in unidirectional hybrids as a successful pseudo-ductility mechanism can be transferred to multi-directional laminates. Furthermore, reduced notch sensitivity was demonstrated in quasi-isotropic specimens for both open holes and sharp notches as a result of local ply fragmentation around the notch.

Original language	English
Pages (from-to)	151-164
Number of pages	14
Journal	Composites Part A: Applied Science and Manufacturing
Volume	104
Early online date	14 Nov 2017
DOIs	https://doi.org/10.1016/j.compositesa.2017.10.028
Publication status	Published - 1 Jan 2018

Keywords

B. Delamination
B. Fragmentation
C. Damage mechanics
D. Mechanical testing

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@article{80def05e21494fa38428790d34dfc261,

title = "Pseudo-ductility and reduced notch sensitivity in multi-directional all-carbon/epoxy thin-ply hybrid composites",

abstract = "Un-notched and notched tensile response and damage accumulation of quasi-isotropic carbon/epoxy hybrid laminates made of ultra-high modulus and intermediate modulus carbon fibre/epoxy thin-ply prepregs were studied. It was confirmed that the ply fragmentation demonstrated previously in unidirectional hybrids as a successful pseudo-ductility mechanism can be transferred to multi-directional laminates. Furthermore, reduced notch sensitivity was demonstrated in quasi-isotropic specimens for both open holes and sharp notches as a result of local ply fragmentation around the notch.",

keywords = "B. Delamination, B. Fragmentation, C. Damage mechanics, D. Mechanical testing",

author = "Gergely Cz{\'e}l and Tamas Rev and Meisam Jalalvand and Mohamad Fotouhi and Longana, \{Marco L.\} and Nixon-Pearson, \{Oliver J.\} and Wisnom, \{Michael R.\}",

year = "2018",

month = jan,

day = "1",

doi = "10.1016/j.compositesa.2017.10.028",

language = "English",

volume = "104",

pages = "151--164",

journal = "Composites Part A: Applied Science and Manufacturing",

issn = "1359-835X",

publisher = "Elsevier Limited",

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TY - JOUR

T1 - Pseudo-ductility and reduced notch sensitivity in multi-directional all-carbon/epoxy thin-ply hybrid composites

AU - Czél, Gergely

AU - Rev, Tamas

AU - Jalalvand, Meisam

AU - Fotouhi, Mohamad

AU - Longana, Marco L.

AU - Nixon-Pearson, Oliver J.

AU - Wisnom, Michael R.

PY - 2018/1/1

Y1 - 2018/1/1

N2 - Un-notched and notched tensile response and damage accumulation of quasi-isotropic carbon/epoxy hybrid laminates made of ultra-high modulus and intermediate modulus carbon fibre/epoxy thin-ply prepregs were studied. It was confirmed that the ply fragmentation demonstrated previously in unidirectional hybrids as a successful pseudo-ductility mechanism can be transferred to multi-directional laminates. Furthermore, reduced notch sensitivity was demonstrated in quasi-isotropic specimens for both open holes and sharp notches as a result of local ply fragmentation around the notch.

AB - Un-notched and notched tensile response and damage accumulation of quasi-isotropic carbon/epoxy hybrid laminates made of ultra-high modulus and intermediate modulus carbon fibre/epoxy thin-ply prepregs were studied. It was confirmed that the ply fragmentation demonstrated previously in unidirectional hybrids as a successful pseudo-ductility mechanism can be transferred to multi-directional laminates. Furthermore, reduced notch sensitivity was demonstrated in quasi-isotropic specimens for both open holes and sharp notches as a result of local ply fragmentation around the notch.

KW - B. Delamination

KW - B. Fragmentation

KW - C. Damage mechanics

KW - D. Mechanical testing

UR - http://www.scopus.com/inward/record.url?scp=85034053024&partnerID=8YFLogxK

U2 - 10.1016/j.compositesa.2017.10.028

DO - 10.1016/j.compositesa.2017.10.028

M3 - Article (Academic Journal)

AN - SCOPUS:85034053024

SN - 1359-835X

VL - 104

SP - 151

EP - 164

JO - Composites Part A: Applied Science and Manufacturing

JF - Composites Part A: Applied Science and Manufacturing

ER -

Pseudo-ductility and reduced notch sensitivity in multi-directional all-carbon/epoxy thin-ply hybrid composites

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Keywords

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Pseudo-ductility and reduced notch sensitivity in multi-directional all-carbon/epoxy thin-ply hybrid composites

Abstract

Keywords

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HiPerDuCT - Programme Grant - Full Proposal

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