Interlaminar fracture toughness of short fibre reinforced GFRP laminates

K. Chawla; S. Ray-Chaudhuri; R. Kitey

doi:10.1016/j.prostr.2019.05.070

Interlaminar fracture toughness of short fibre reinforced GFRP laminates

K. Chawla, S. Ray-Chaudhuri, R. Kitey

Research output: Contribution to journal › Conference article › peer-review

7 Scopus citations

Abstract

The influence of reinforced short fibers on the interlaminar fracture toughness of unidirectional laminate is studied. The glass fiber laminates are fabricated by using neat as well as the reinforced epoxy resin system by hand lay-up technique. Double cantilever beam test in combination with modified beam theory is employed to determine the interlaminar fracture toughness (G_k) of the laminates. The load vs. crosshead displacement plots indicates stable crack propagation during the tests with higher crack growth resistance in case of short fibre reinforced specimens. Optical images show that the addition of fillers enhances fiber bridging which results in ~ 26 % increase in the G_Ic value of the laminate in the reinforced case.

Original language	English
Pages (from-to)	571-576
Number of pages	6
Journal	Procedia Structural Integrity
Volume	14
DOIs	https://doi.org/10.1016/j.prostr.2019.05.070
State	Published - 2019
Externally published	Yes
Event	2nd International Conference on Structural Integrity and Exhibition, SICE 2018 - Hyderabad, India Duration: Jul 25 2018 → Jul 27 2018

Keywords

Fibre bridging
Fracture toughness
Glass fibre reinforced composite
Short fibres

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10.1016/j.prostr.2019.05.070

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title = "Interlaminar fracture toughness of short fibre reinforced GFRP laminates",

abstract = "The influence of reinforced short fibers on the interlaminar fracture toughness of unidirectional laminate is studied. The glass fiber laminates are fabricated by using neat as well as the reinforced epoxy resin system by hand lay-up technique. Double cantilever beam test in combination with modified beam theory is employed to determine the interlaminar fracture toughness (Gk) of the laminates. The load vs. crosshead displacement plots indicates stable crack propagation during the tests with higher crack growth resistance in case of short fibre reinforced specimens. Optical images show that the addition of fillers enhances fiber bridging which results in ~ 26 % increase in the GIc value of the laminate in the reinforced case.",

keywords = "Fibre bridging, Fracture toughness, Glass fibre reinforced composite, Short fibres",

author = "K. Chawla and S. Ray-Chaudhuri and R. Kitey",

note = "Publisher Copyright: {\textcopyright} 2019 The Authors. Published by Elsevier B.V.; 2nd International Conference on Structural Integrity and Exhibition, SICE 2018 ; Conference date: 25-07-2018 Through 27-07-2018",

year = "2019",

doi = "10.1016/j.prostr.2019.05.070",

language = "English",

volume = "14",

pages = "571--576",

journal = "Procedia Structural Integrity",

issn = "2452-3216",

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TY - JOUR

T1 - Interlaminar fracture toughness of short fibre reinforced GFRP laminates

AU - Chawla, K.

AU - Ray-Chaudhuri, S.

AU - Kitey, R.

PY - 2019

Y1 - 2019

N2 - The influence of reinforced short fibers on the interlaminar fracture toughness of unidirectional laminate is studied. The glass fiber laminates are fabricated by using neat as well as the reinforced epoxy resin system by hand lay-up technique. Double cantilever beam test in combination with modified beam theory is employed to determine the interlaminar fracture toughness (Gk) of the laminates. The load vs. crosshead displacement plots indicates stable crack propagation during the tests with higher crack growth resistance in case of short fibre reinforced specimens. Optical images show that the addition of fillers enhances fiber bridging which results in ~ 26 % increase in the GIc value of the laminate in the reinforced case.

AB - The influence of reinforced short fibers on the interlaminar fracture toughness of unidirectional laminate is studied. The glass fiber laminates are fabricated by using neat as well as the reinforced epoxy resin system by hand lay-up technique. Double cantilever beam test in combination with modified beam theory is employed to determine the interlaminar fracture toughness (Gk) of the laminates. The load vs. crosshead displacement plots indicates stable crack propagation during the tests with higher crack growth resistance in case of short fibre reinforced specimens. Optical images show that the addition of fillers enhances fiber bridging which results in ~ 26 % increase in the GIc value of the laminate in the reinforced case.

KW - Fibre bridging

KW - Fracture toughness

KW - Glass fibre reinforced composite

KW - Short fibres

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U2 - 10.1016/j.prostr.2019.05.070

DO - 10.1016/j.prostr.2019.05.070

M3 - Conference article

AN - SCOPUS:85074670931

SN - 2452-3216

VL - 14

SP - 571

EP - 576

JO - Procedia Structural Integrity

JF - Procedia Structural Integrity

T2 - 2nd International Conference on Structural Integrity and Exhibition, SICE 2018

Y2 - 25 July 2018 through 27 July 2018

ER -

Interlaminar fracture toughness of short fibre reinforced GFRP laminates

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