Healing potential of hybrid materials for structural composites

Erdem Selver; Prasad Potluri; Costas Soutis; Paul Hogg

doi:10.1016/j.compstruct.2014.11.027

Healing potential of hybrid materials for structural composites

Erdem Selver, Prasad Potluri, Costas Soutis, Paul Hogg

Research output: Contribution to journal › Article › peer-review

Abstract

The healing potential of light-weight hybrid composites consisting of S-glass and polypropylene fibres in an Araldite LY564 epoxy resin has been investigated. This paper describes a co-mingling process for creating glass–polypropylene hybrid yarns. Cross-ply laminates consisting of hybrid yarns in an epoxy matrix have been tested under low energy impact as well as compression after impact (CAI) loading conditions. The study examines the potential for healing the damage cracks developed during impact, with polypropylene fibres. Key part of this investigation is to evaluate the healing potential of polypropylene fibres through local heating. The study shows that with a simple heat treatment process, significant reduction in the impact induced damage area and a corresponding increase in the compression after impact strength can be achieved; a 65% strength improvement has been measured for the healed specimens when compared to unhealed specimen.

Original language	English
Pages (from-to)	57-66
Journal	Composite Structures
Volume	122
Early online date	20 Nov 2014
DOIs	https://doi.org/10.1016/j.compstruct.2014.11.027
Publication status	Published - 1 Apr 2015

Keywords

Composites
Hybrid yarns
Impact resistance
Compression after impact
Damage tolerance
Healing process

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10.1016/j.compstruct.2014.11.027

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title = "Healing potential of hybrid materials for structural composites",

abstract = "The healing potential of light-weight hybrid composites consisting of S-glass and polypropylene fibres in an Araldite LY564 epoxy resin has been investigated. This paper describes a co-mingling process for creating glass–polypropylene hybrid yarns. Cross-ply laminates consisting of hybrid yarns in an epoxy matrix have been tested under low energy impact as well as compression after impact (CAI) loading conditions. The study examines the potential for healing the damage cracks developed during impact, with polypropylene fibres. Key part of this investigation is to evaluate the healing potential of polypropylene fibres through local heating. The study shows that with a simple heat treatment process, significant reduction in the impact induced damage area and a corresponding increase in the compression after impact strength can be achieved; a 65% strength improvement has been measured for the healed specimens when compared to unhealed specimen.",

keywords = "Composites, Hybrid yarns, Impact resistance, Compression after impact, Damage tolerance, Healing process",

author = "Erdem Selver and Prasad Potluri and Costas Soutis and Paul Hogg",

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doi = "10.1016/j.compstruct.2014.11.027",

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T1 - Healing potential of hybrid materials for structural composites

AU - Selver, Erdem

AU - Potluri, Prasad

AU - Soutis, Costas

AU - Hogg, Paul

PY - 2015/4/1

Y1 - 2015/4/1

N2 - The healing potential of light-weight hybrid composites consisting of S-glass and polypropylene fibres in an Araldite LY564 epoxy resin has been investigated. This paper describes a co-mingling process for creating glass–polypropylene hybrid yarns. Cross-ply laminates consisting of hybrid yarns in an epoxy matrix have been tested under low energy impact as well as compression after impact (CAI) loading conditions. The study examines the potential for healing the damage cracks developed during impact, with polypropylene fibres. Key part of this investigation is to evaluate the healing potential of polypropylene fibres through local heating. The study shows that with a simple heat treatment process, significant reduction in the impact induced damage area and a corresponding increase in the compression after impact strength can be achieved; a 65% strength improvement has been measured for the healed specimens when compared to unhealed specimen.

AB - The healing potential of light-weight hybrid composites consisting of S-glass and polypropylene fibres in an Araldite LY564 epoxy resin has been investigated. This paper describes a co-mingling process for creating glass–polypropylene hybrid yarns. Cross-ply laminates consisting of hybrid yarns in an epoxy matrix have been tested under low energy impact as well as compression after impact (CAI) loading conditions. The study examines the potential for healing the damage cracks developed during impact, with polypropylene fibres. Key part of this investigation is to evaluate the healing potential of polypropylene fibres through local heating. The study shows that with a simple heat treatment process, significant reduction in the impact induced damage area and a corresponding increase in the compression after impact strength can be achieved; a 65% strength improvement has been measured for the healed specimens when compared to unhealed specimen.

KW - Composites

KW - Hybrid yarns

KW - Impact resistance

KW - Compression after impact

KW - Damage tolerance

KW - Healing process

U2 - 10.1016/j.compstruct.2014.11.027

DO - 10.1016/j.compstruct.2014.11.027

M3 - Article

SN - 0263-8223

VL - 122

SP - 57

EP - 66

JO - Composite Structures

JF - Composite Structures

ER -

Healing potential of hybrid materials for structural composites

Abstract

Keywords

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