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Impact damage resistance and post impact tolerance of optimum banana-pseudo stem fiber reinforced epoxy sandwich structures

Banana fiber has a high potential for use in fiber composite structures due to its promise as a polymer reinforcement. However, it has poor bonding characteristics with the matrixes due to hydrophobic-hydrophilic incompatibility, inconsistency in blending weight ratio, and fiber length instability....

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Main Authors: Hassan, M. Z., Sapuan, S. M., Rasid, Z. A., Mohd Nor, A. F., Dolah, R., Md Daud, M. Y.
Format: Article
Language:English
Published: MDPI AG 2020
Subjects:
T Technology (General)
Online Access:http://eprints.utm.my/id/eprint/86421/1/MohamadZakiHassan2020_ImpactDamageResistanceandPostImpactTolerance.pdf
http://eprints.utm.my/id/eprint/86421/
https://dx.doi.org/10.3390/app10020684
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spelling my.utm.864212020-09-09T07:02:05Z http://eprints.utm.my/id/eprint/86421/ Impact damage resistance and post impact tolerance of optimum banana-pseudo stem fiber reinforced epoxy sandwich structures Hassan, M. Z. Sapuan, S. M. Rasid, Z. A. Mohd Nor, A. F. Dolah, R. Md Daud, M. Y. T Technology (General) Banana fiber has a high potential for use in fiber composite structures due to its promise as a polymer reinforcement. However, it has poor bonding characteristics with the matrixes due to hydrophobic-hydrophilic incompatibility, inconsistency in blending weight ratio, and fiber length instability. In this study, the optimal conditions for a banana/epoxy composite as determined previously were used to fabricate a sandwich structure where carbon/Kevlar twill plies acted as the skins. The structure was evaluated based on two experimental tests: low-velocity impact and compression after impact (CAI) tests. Here, the synthetic fiber including Kevlar, carbon, and glass sandwich structures were also tested for comparison purposes. In general, the results showed a low peak load and larger damage area in the optimal banana/epoxy structures. The impact damage area, as characterized by the dye penetration, increased with increasing impact energy. The optimal banana composite and synthetic fiber systems were proven to offer a similar residual strength and normalized strength when higher impact energies were applied. Delamination and fracture behavior were dominant in the optimal banana structures subjected to CAI testing. Finally, optimization of the compounding parameters of the optimal banana fibers improved the impact and CAI properties of the structure, making them comparable to those of synthetic sandwich composites. MDPI AG 2020-01 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/86421/1/MohamadZakiHassan2020_ImpactDamageResistanceandPostImpactTolerance.pdf Hassan, M. Z. and Sapuan, S. M. and Rasid, Z. A. and Mohd Nor, A. F. and Dolah, R. and Md Daud, M. Y. (2020) Impact damage resistance and post impact tolerance of optimum banana-pseudo stem fiber reinforced epoxy sandwich structures. Applied Sciences (Switzerland), 10 (2). ISSN 2076-3417 https://dx.doi.org/10.3390/app10020684 DOI:10.3390/app10020684
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic T Technology (General)
spellingShingle T Technology (General)
Hassan, M. Z.
Sapuan, S. M.
Rasid, Z. A.
Mohd Nor, A. F.
Dolah, R.
Md Daud, M. Y.
Impact damage resistance and post impact tolerance of optimum banana-pseudo stem fiber reinforced epoxy sandwich structures
description Banana fiber has a high potential for use in fiber composite structures due to its promise as a polymer reinforcement. However, it has poor bonding characteristics with the matrixes due to hydrophobic-hydrophilic incompatibility, inconsistency in blending weight ratio, and fiber length instability. In this study, the optimal conditions for a banana/epoxy composite as determined previously were used to fabricate a sandwich structure where carbon/Kevlar twill plies acted as the skins. The structure was evaluated based on two experimental tests: low-velocity impact and compression after impact (CAI) tests. Here, the synthetic fiber including Kevlar, carbon, and glass sandwich structures were also tested for comparison purposes. In general, the results showed a low peak load and larger damage area in the optimal banana/epoxy structures. The impact damage area, as characterized by the dye penetration, increased with increasing impact energy. The optimal banana composite and synthetic fiber systems were proven to offer a similar residual strength and normalized strength when higher impact energies were applied. Delamination and fracture behavior were dominant in the optimal banana structures subjected to CAI testing. Finally, optimization of the compounding parameters of the optimal banana fibers improved the impact and CAI properties of the structure, making them comparable to those of synthetic sandwich composites.
format Article
author Hassan, M. Z.
Sapuan, S. M.
Rasid, Z. A.
Mohd Nor, A. F.
Dolah, R.
Md Daud, M. Y.
author_facet Hassan, M. Z.
Sapuan, S. M.
Rasid, Z. A.
Mohd Nor, A. F.
Dolah, R.
Md Daud, M. Y.
author_sort Hassan, M. Z.
title Impact damage resistance and post impact tolerance of optimum banana-pseudo stem fiber reinforced epoxy sandwich structures
title_short Impact damage resistance and post impact tolerance of optimum banana-pseudo stem fiber reinforced epoxy sandwich structures
title_full Impact damage resistance and post impact tolerance of optimum banana-pseudo stem fiber reinforced epoxy sandwich structures
title_fullStr Impact damage resistance and post impact tolerance of optimum banana-pseudo stem fiber reinforced epoxy sandwich structures
title_full_unstemmed Impact damage resistance and post impact tolerance of optimum banana-pseudo stem fiber reinforced epoxy sandwich structures
title_sort impact damage resistance and post impact tolerance of optimum banana-pseudo stem fiber reinforced epoxy sandwich structures
publisher MDPI AG
publishDate 2020
url http://eprints.utm.my/id/eprint/86421/1/MohamadZakiHassan2020_ImpactDamageResistanceandPostImpactTolerance.pdf
http://eprints.utm.my/id/eprint/86421/
https://dx.doi.org/10.3390/app10020684
_version_ 1677781175480877056
score 13.211869

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