Combined effect of moisture and test temperature on the pseudo-ductility of thin-ply carbon/epoxy-glass/epoxy hybrid composites

Gergely Czél; Márton Bugár-Mészáros; Michael R. Wisnom

doi:10.1016/j.compositesa.2022.107353

Combined effect of moisture and test temperature on the pseudo-ductility of thin-ply carbon/epoxy-glass/epoxy hybrid composites

Gergely Czél^*, Márton Bugár-Mészáros, Michael R. Wisnom

^*Corresponding author for this work

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

8 Citations (Scopus)

Abstract

Two different glass/carbon fibre-epoxy interlayer hybrid composite specimen types (with continuous or discontinuous carbon layer) were investigated. Unconditioned and conditioned composite specimens were tested at various temperatures in order to study the temperature dependency and moisture sensitivity of the tensile and interlaminar properties of the hybrid composites. The tensile response of the unconditioned continuous specimens was barely influenced by temperature and the specimens failed in pseudo-ductile mode. The unconditioned discontinuous specimens delaminated stably at the glass/carbon interface. Increasing the test temperature from −50 °C to 80 °C, the mode II fracture toughness of glass/carbon hybrid composites decreased significantly. The effect of moisture significantly changed the behaviour of both type hybrid composites at all temperatures leading to unstable delamination and glass fibre failure as well. The main reason for this was the decrease in strength of the S-glass/epoxy layers.

Original language	English
Article number	107353
Journal	Composites Part A: Applied Science and Manufacturing
Volume	165
Early online date	5 Dec 2022
DOIs	https://doi.org/10.1016/j.compositesa.2022.107353
Publication status	Published - Feb 2023

Bibliographical note

Funding Information:
The research reported in this paper was supported by the National Research, Development and Innovation Office (NRDI, Hungary) through grants OTKA K 116070, OTKA FK 131882. The research reported in this paper is part of project no. BME-NVA-02, implemented with the support provided by the Ministry of Innovation and Technology of Hungary from the National Research, Development and Innovation Fund, financed under the TKP2021 funding scheme. The work was also supported by the UK Engineering and Physical Sciences Research Council (EPSRC) Programme Grant EP/I02946X/1 on High Performance Ductile Composite Technology in collaboration with Imperial College, London. Gergely Czél is grateful for funding through the Premium Postdoctoral Fellowship Programme and the János Bolyai Scholarship of the Hungarian Academy of Sciences and funding through the ÚNKP-22-5-BME-323 New National Excellence Program of the Ministry for Culture and Innovation from the source of the National Research, Development and Innovation Fund. Márton Bugár-Mészáros is grateful for funding through the ÚNKP-20-2 New National Excellence Program of the Ministry of Innovation and Technology.

Publisher Copyright:
© 2022 The Author(s)

Keywords

Hybrid
Mechanical properties
Moisture
Polymer-matrix composite

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title = "Combined effect of moisture and test temperature on the pseudo-ductility of thin-ply carbon/epoxy-glass/epoxy hybrid composites",

abstract = "Two different glass/carbon fibre-epoxy interlayer hybrid composite specimen types (with continuous or discontinuous carbon layer) were investigated. Unconditioned and conditioned composite specimens were tested at various temperatures in order to study the temperature dependency and moisture sensitivity of the tensile and interlaminar properties of the hybrid composites. The tensile response of the unconditioned continuous specimens was barely influenced by temperature and the specimens failed in pseudo-ductile mode. The unconditioned discontinuous specimens delaminated stably at the glass/carbon interface. Increasing the test temperature from −50 °C to 80 °C, the mode II fracture toughness of glass/carbon hybrid composites decreased significantly. The effect of moisture significantly changed the behaviour of both type hybrid composites at all temperatures leading to unstable delamination and glass fibre failure as well. The main reason for this was the decrease in strength of the S-glass/epoxy layers.",

keywords = "Hybrid, Mechanical properties, Moisture, Polymer-matrix composite",

author = "Gergely Cz{\'e}l and M{\'a}rton Bug{\'a}r-M{\'e}sz{\'a}ros and Wisnom, {Michael R.}",

note = "Funding Information: The research reported in this paper was supported by the National Research, Development and Innovation Office (NRDI, Hungary) through grants OTKA K 116070, OTKA FK 131882. The research reported in this paper is part of project no. BME-NVA-02, implemented with the support provided by the Ministry of Innovation and Technology of Hungary from the National Research, Development and Innovation Fund, financed under the TKP2021 funding scheme. The work was also supported by the UK Engineering and Physical Sciences Research Council (EPSRC) Programme Grant EP/I02946X/1 on High Performance Ductile Composite Technology in collaboration with Imperial College, London. Gergely Cz{\'e}l is grateful for funding through the Premium Postdoctoral Fellowship Programme and the J{\'a}nos Bolyai Scholarship of the Hungarian Academy of Sciences and funding through the {\'U}NKP-22-5-BME-323 New National Excellence Program of the Ministry for Culture and Innovation from the source of the National Research, Development and Innovation Fund. M{\'a}rton Bug{\'a}r-M{\'e}sz{\'a}ros is grateful for funding through the {\'U}NKP-20-2 New National Excellence Program of the Ministry of Innovation and Technology. Publisher Copyright: {\textcopyright} 2022 The Author(s)",

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doi = "10.1016/j.compositesa.2022.107353",

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AU - Czél, Gergely

AU - Bugár-Mészáros, Márton

AU - Wisnom, Michael R.

N1 - Funding Information: The research reported in this paper was supported by the National Research, Development and Innovation Office (NRDI, Hungary) through grants OTKA K 116070, OTKA FK 131882. The research reported in this paper is part of project no. BME-NVA-02, implemented with the support provided by the Ministry of Innovation and Technology of Hungary from the National Research, Development and Innovation Fund, financed under the TKP2021 funding scheme. The work was also supported by the UK Engineering and Physical Sciences Research Council (EPSRC) Programme Grant EP/I02946X/1 on High Performance Ductile Composite Technology in collaboration with Imperial College, London. Gergely Czél is grateful for funding through the Premium Postdoctoral Fellowship Programme and the János Bolyai Scholarship of the Hungarian Academy of Sciences and funding through the ÚNKP-22-5-BME-323 New National Excellence Program of the Ministry for Culture and Innovation from the source of the National Research, Development and Innovation Fund. Márton Bugár-Mészáros is grateful for funding through the ÚNKP-20-2 New National Excellence Program of the Ministry of Innovation and Technology. Publisher Copyright: © 2022 The Author(s)

PY - 2023/2

Y1 - 2023/2

N2 - Two different glass/carbon fibre-epoxy interlayer hybrid composite specimen types (with continuous or discontinuous carbon layer) were investigated. Unconditioned and conditioned composite specimens were tested at various temperatures in order to study the temperature dependency and moisture sensitivity of the tensile and interlaminar properties of the hybrid composites. The tensile response of the unconditioned continuous specimens was barely influenced by temperature and the specimens failed in pseudo-ductile mode. The unconditioned discontinuous specimens delaminated stably at the glass/carbon interface. Increasing the test temperature from −50 °C to 80 °C, the mode II fracture toughness of glass/carbon hybrid composites decreased significantly. The effect of moisture significantly changed the behaviour of both type hybrid composites at all temperatures leading to unstable delamination and glass fibre failure as well. The main reason for this was the decrease in strength of the S-glass/epoxy layers.

AB - Two different glass/carbon fibre-epoxy interlayer hybrid composite specimen types (with continuous or discontinuous carbon layer) were investigated. Unconditioned and conditioned composite specimens were tested at various temperatures in order to study the temperature dependency and moisture sensitivity of the tensile and interlaminar properties of the hybrid composites. The tensile response of the unconditioned continuous specimens was barely influenced by temperature and the specimens failed in pseudo-ductile mode. The unconditioned discontinuous specimens delaminated stably at the glass/carbon interface. Increasing the test temperature from −50 °C to 80 °C, the mode II fracture toughness of glass/carbon hybrid composites decreased significantly. The effect of moisture significantly changed the behaviour of both type hybrid composites at all temperatures leading to unstable delamination and glass fibre failure as well. The main reason for this was the decrease in strength of the S-glass/epoxy layers.

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KW - Mechanical properties

KW - Moisture

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SN - 1359-835X

VL - 165

JO - Composites Part A: Applied Science and Manufacturing

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M1 - 107353

ER -

Combined effect of moisture and test temperature on the pseudo-ductility of thin-ply carbon/epoxy-glass/epoxy hybrid composites

Abstract

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