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Experimental and numerical investigation of adhesively bonded kfrp/steel double strap joints incorporating eggshell powder-toughened epoxy adhesive

Due to the environmental concerns, the application of natural FRPs to replace synthetic fibre as a strengthening material has increased. Kenaf fibre-reinforced polymer (KFRP) has comparable specific strength with glass fibre-reinforced polymer (GFRP). Moreover, epoxy resin is widely used as a matrix...

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Main Authors: Chia Lia Yip, Chia Lia Yip, Sugiman Sugiman, Sugiman Sugiman, Desmond Chin, Desmond Chin, Ahmad, Hilton
Format: Article
Language:English
Published: Elsevier 2024
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://eprints.uthm.edu.my/11770/1/J17279_bf2c7b66a62d26599d714c25e1ed9d34.pdf
http://eprints.uthm.edu.my/11770/
https://doi.org/10.1016/j.cscm.2023.e02790
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spelling my.uthm.eprints.117702025-01-31T08:38:28Z http://eprints.uthm.edu.my/11770/ Experimental and numerical investigation of adhesively bonded kfrp/steel double strap joints incorporating eggshell powder-toughened epoxy adhesive Chia Lia Yip, Chia Lia Yip Sugiman Sugiman, Sugiman Sugiman Desmond Chin, Desmond Chin Ahmad, Hilton TA Engineering (General). Civil engineering (General) Due to the environmental concerns, the application of natural FRPs to replace synthetic fibre as a strengthening material has increased. Kenaf fibre-reinforced polymer (KFRP) has comparable specific strength with glass fibre-reinforced polymer (GFRP). Moreover, epoxy resin is widely used as a matrix of composites and adhesives; however, it has low shear strength. Improvement of epoxy properties is therefore required, for example, by incorporating biofiller such as eggshells from household waste, which contain calcite, to improve its shear strength. Testing series includes variations of KFRP bond length, KFRP thickness and eggshell filler volume fractions. All the DSJ specimens underwent a two-stage testing process, experimentally and numerically. In Stage 1, experimental work was performed on the specimens through quasi-static tensile tests, following the ASTM D3528–96. In Stage 2, numerical studies were conducted to predict the strength using the extended finite element method (XFEM) within ABAQUS CAE. Subsequently, the strength prediction from developed 2-D FEA models was validated by the experimental datasets. All testing specimens exhibited KFRP rupture mode. For all the studied overlap lengths, the joint strength increased with the increase of the studied composite’s adherend thickness (1 - 4 mm); however, the overlap length reached the optimum at the overlap length of 80 mm, where beyond that overlap length, the joint strength tended to decrease. The maximum joint strength is achieved with a combination of 80 mm bond length and 4 mm KFRP thickness, resulting in a 226.5% enhancement compared to the baseline (composite thickness of 1 mm, with adhesive without filler). Moreover, it was found that volume fraction of 5% eggshell was the optimum. The strength prediction was performed using an extended finite element method (XFEM), In general, there were good agreements in both experimental datasets and XFEM models, with discrepancies of less than 16.1% (averaging less than 8%). The FEA modelling approaches are promising for predicting the joint strength of KFRP/steel DSJ. Elsevier 2024 Article PeerReviewed text en http://eprints.uthm.edu.my/11770/1/J17279_bf2c7b66a62d26599d714c25e1ed9d34.pdf Chia Lia Yip, Chia Lia Yip and Sugiman Sugiman, Sugiman Sugiman and Desmond Chin, Desmond Chin and Ahmad, Hilton (2024) Experimental and numerical investigation of adhesively bonded kfrp/steel double strap joints incorporating eggshell powder-toughened epoxy adhesive. Case Studies in Construction Materials, 20. pp. 1-7. https://doi.org/10.1016/j.cscm.2023.e02790
institution Universiti Tun Hussein Onn Malaysia
building UTHM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Tun Hussein Onn Malaysia
content_source UTHM Institutional Repository
url_provider http://eprints.uthm.edu.my/
language English
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Chia Lia Yip, Chia Lia Yip
Sugiman Sugiman, Sugiman Sugiman
Desmond Chin, Desmond Chin
Ahmad, Hilton
Experimental and numerical investigation of adhesively bonded kfrp/steel double strap joints incorporating eggshell powder-toughened epoxy adhesive
description Due to the environmental concerns, the application of natural FRPs to replace synthetic fibre as a strengthening material has increased. Kenaf fibre-reinforced polymer (KFRP) has comparable specific strength with glass fibre-reinforced polymer (GFRP). Moreover, epoxy resin is widely used as a matrix of composites and adhesives; however, it has low shear strength. Improvement of epoxy properties is therefore required, for example, by incorporating biofiller such as eggshells from household waste, which contain calcite, to improve its shear strength. Testing series includes variations of KFRP bond length, KFRP thickness and eggshell filler volume fractions. All the DSJ specimens underwent a two-stage testing process, experimentally and numerically. In Stage 1, experimental work was performed on the specimens through quasi-static tensile tests, following the ASTM D3528–96. In Stage 2, numerical studies were conducted to predict the strength using the extended finite element method (XFEM) within ABAQUS CAE. Subsequently, the strength prediction from developed 2-D FEA models was validated by the experimental datasets. All testing specimens exhibited KFRP rupture mode. For all the studied overlap lengths, the joint strength increased with the increase of the studied composite’s adherend thickness (1 - 4 mm); however, the overlap length reached the optimum at the overlap length of 80 mm, where beyond that overlap length, the joint strength tended to decrease. The maximum joint strength is achieved with a combination of 80 mm bond length and 4 mm KFRP thickness, resulting in a 226.5% enhancement compared to the baseline (composite thickness of 1 mm, with adhesive without filler). Moreover, it was found that volume fraction of 5% eggshell was the optimum. The strength prediction was performed using an extended finite element method (XFEM), In general, there were good agreements in both experimental datasets and XFEM models, with discrepancies of less than 16.1% (averaging less than 8%). The FEA modelling approaches are promising for predicting the joint strength of KFRP/steel DSJ.
format Article
author Chia Lia Yip, Chia Lia Yip
Sugiman Sugiman, Sugiman Sugiman
Desmond Chin, Desmond Chin
Ahmad, Hilton
author_facet Chia Lia Yip, Chia Lia Yip
Sugiman Sugiman, Sugiman Sugiman
Desmond Chin, Desmond Chin
Ahmad, Hilton
author_sort Chia Lia Yip, Chia Lia Yip
title Experimental and numerical investigation of adhesively bonded kfrp/steel double strap joints incorporating eggshell powder-toughened epoxy adhesive
title_short Experimental and numerical investigation of adhesively bonded kfrp/steel double strap joints incorporating eggshell powder-toughened epoxy adhesive
title_full Experimental and numerical investigation of adhesively bonded kfrp/steel double strap joints incorporating eggshell powder-toughened epoxy adhesive
title_fullStr Experimental and numerical investigation of adhesively bonded kfrp/steel double strap joints incorporating eggshell powder-toughened epoxy adhesive
title_full_unstemmed Experimental and numerical investigation of adhesively bonded kfrp/steel double strap joints incorporating eggshell powder-toughened epoxy adhesive
title_sort experimental and numerical investigation of adhesively bonded kfrp/steel double strap joints incorporating eggshell powder-toughened epoxy adhesive
publisher Elsevier
publishDate 2024
url http://eprints.uthm.edu.my/11770/1/J17279_bf2c7b66a62d26599d714c25e1ed9d34.pdf
http://eprints.uthm.edu.my/11770/
https://doi.org/10.1016/j.cscm.2023.e02790
_version_ 1823094294264676352
score 13.235362

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