Impact damage resistance of CFRP with nanoclay-filled epoxy matrix

Kosar Iqbal; Shafi Ullah Khan; Arshad Munir; Jang Kyo Kim

doi:10.1016/j.compscitech.2009.04.016

Impact damage resistance of CFRP with nanoclay-filled epoxy matrix

Kosar Iqbal, Shafi Ullah Khan, Arshad Munir, Jang Kyo Kim

Mechanical & Nuclear Engineering

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

210 Scopus citations

Abstract

The influence of nanoclay on the impact damage resistance of carbon fibre-epoxy composites has been investigated using the low-velocity impact and compression after impact (CAI) tests. The load-energy vs. time relations were analyzed to gain insight into the damage behaviours of the materials. The CFRPs containing organoclay brought about significant improvement in impact damage resistance and damage tolerance in the form of smaller damage area, higher residual strength and higher threshold energy level. The presence of nanoclay in the epoxy matrix induced the transition of failure mechanisms of CFRP laminates during the CAI test, from the brittle buckling mode to more ductile, multi-layer delamination mode. Addition of 3 wt% clay was shown to be an optimal content for the highest damage resistance.

Original language	British English
Pages (from-to)	1949-1957
Number of pages	9
Journal	Composites Science and Technology
Volume	69
Issue number	11-12
DOIs	https://doi.org/10.1016/j.compscitech.2009.04.016
State	Published - Sep 2009

Keywords

A. Hybrid composites
A. Nanoclay
A. Nanocomposite
B. Impact behaviour
C. Damage tolerance

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10.1016/j.compscitech.2009.04.016

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title = "Impact damage resistance of CFRP with nanoclay-filled epoxy matrix",

abstract = "The influence of nanoclay on the impact damage resistance of carbon fibre-epoxy composites has been investigated using the low-velocity impact and compression after impact (CAI) tests. The load-energy vs. time relations were analyzed to gain insight into the damage behaviours of the materials. The CFRPs containing organoclay brought about significant improvement in impact damage resistance and damage tolerance in the form of smaller damage area, higher residual strength and higher threshold energy level. The presence of nanoclay in the epoxy matrix induced the transition of failure mechanisms of CFRP laminates during the CAI test, from the brittle buckling mode to more ductile, multi-layer delamination mode. Addition of 3 wt% clay was shown to be an optimal content for the highest damage resistance.",

keywords = "A. Hybrid composites, A. Nanoclay, A. Nanocomposite, B. Impact behaviour, C. Damage tolerance",

author = "Kosar Iqbal and Khan, {Shafi Ullah} and Arshad Munir and Kim, {Jang Kyo}",

note = "Funding Information: This project was supported by the Research Grant Council of Hong Kong Special Administration Region and the National Engineering and Scientific Commission of Pakistan (NESCOM001.05/06). Most experiments were conducted with technical supports of Advanced Engineering Materials Facility (AEMF) and Materials Characterisation and Preparation Facilities (MCPF) of HKUST.",

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doi = "10.1016/j.compscitech.2009.04.016",

language = "British English",

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pages = "1949--1957",

journal = "Composites Science and Technology",

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AU - Iqbal, Kosar

AU - Khan, Shafi Ullah

AU - Munir, Arshad

AU - Kim, Jang Kyo

N1 - Funding Information: This project was supported by the Research Grant Council of Hong Kong Special Administration Region and the National Engineering and Scientific Commission of Pakistan (NESCOM001.05/06). Most experiments were conducted with technical supports of Advanced Engineering Materials Facility (AEMF) and Materials Characterisation and Preparation Facilities (MCPF) of HKUST.

PY - 2009/9

Y1 - 2009/9

N2 - The influence of nanoclay on the impact damage resistance of carbon fibre-epoxy composites has been investigated using the low-velocity impact and compression after impact (CAI) tests. The load-energy vs. time relations were analyzed to gain insight into the damage behaviours of the materials. The CFRPs containing organoclay brought about significant improvement in impact damage resistance and damage tolerance in the form of smaller damage area, higher residual strength and higher threshold energy level. The presence of nanoclay in the epoxy matrix induced the transition of failure mechanisms of CFRP laminates during the CAI test, from the brittle buckling mode to more ductile, multi-layer delamination mode. Addition of 3 wt% clay was shown to be an optimal content for the highest damage resistance.

AB - The influence of nanoclay on the impact damage resistance of carbon fibre-epoxy composites has been investigated using the low-velocity impact and compression after impact (CAI) tests. The load-energy vs. time relations were analyzed to gain insight into the damage behaviours of the materials. The CFRPs containing organoclay brought about significant improvement in impact damage resistance and damage tolerance in the form of smaller damage area, higher residual strength and higher threshold energy level. The presence of nanoclay in the epoxy matrix induced the transition of failure mechanisms of CFRP laminates during the CAI test, from the brittle buckling mode to more ductile, multi-layer delamination mode. Addition of 3 wt% clay was shown to be an optimal content for the highest damage resistance.

KW - A. Hybrid composites

KW - A. Nanoclay

KW - A. Nanocomposite

KW - B. Impact behaviour

KW - C. Damage tolerance

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U2 - 10.1016/j.compscitech.2009.04.016

DO - 10.1016/j.compscitech.2009.04.016

M3 - Article

AN - SCOPUS:67649094111

SN - 0266-3538

VL - 69

SP - 1949

EP - 1957

JO - Composites Science and Technology

JF - Composites Science and Technology

IS - 11-12

ER -

Impact damage resistance of CFRP with nanoclay-filled epoxy matrix

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Keywords

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