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Effect of silica bodies on the mechanical behaviour of oil palm empty fruit bunch fibres

The surface of oil palm empty fruit bunch fibres contains embedded silica bodies or protrusions. The mechanical contribution of the protrusions towards the integrity of the fibres is still not clearly investigated. In this work, 2D and 3D finite element simulations on the surface and cross section o...

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Main Authors: Omar, Farah Nadia, P. Mohammed, Mohd Afandi, Samsu Baharuddin, Azhari
Format: Article
Language:English
Published: North Carolina State University 2014
Online Access:http://psasir.upm.edu.my/id/eprint/37308/1/Effect%20of%20silica%20bodies%20on%20the%20mechanical%20behaviour%20of%20oil%20palm%20empty%20fruit%20bunch%20fibres.pdf
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spelling oai:psasir.upm.edu.my:37308 http://psasir.upm.edu.my/id/eprint/37308/ Effect of silica bodies on the mechanical behaviour of oil palm empty fruit bunch fibres Omar, Farah Nadia P. Mohammed, Mohd Afandi Samsu Baharuddin, Azhari The surface of oil palm empty fruit bunch fibres contains embedded silica bodies or protrusions. The mechanical contribution of the protrusions towards the integrity of the fibres is still not clearly investigated. In this work, 2D and 3D finite element simulations on the surface and cross section of the fibres, respectively, were performed. The information for the models was obtained from scanning electron microscopy analysis and mechanical tests for the silica body characteristics and elastic modulus, respectively. Different silica bodies arrangements and the effect of spiked geometry of the silica bodies was investigated using 2D models. Cohesive zone modelling was introduced to simulate damage or debonding between the interface of silica bodies and fibre. A 3D finite element model was later developed consisting of a silica body (sphere) embedded halfway in the matrix. The numerical results showed that the 2D model was sensitive to critical stress compared to silica bodies spiked geometry, arrangement of silica bodies on the fibre surface, and cohesive energy. On the other hand, the results showed that for 3D models with thicknesses larger than 0.2 mm, the effect of the silica bodies on the elasticity of the fibre was not significant. North Carolina State University 2014 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/37308/1/Effect%20of%20silica%20bodies%20on%20the%20mechanical%20behaviour%20of%20oil%20palm%20empty%20fruit%20bunch%20fibres.pdf Omar, Farah Nadia and P. Mohammed, Mohd Afandi and Samsu Baharuddin, Azhari (2014) Effect of silica bodies on the mechanical behaviour of oil palm empty fruit bunch fibres. BioResources, 9 (4). pp. 7041-7058. ISSN 1930-2126 http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_09_4_Mohammed_Silica_Bodies_Fruit_Fibers
institution UPM IR
collection UPM IR
language English
description The surface of oil palm empty fruit bunch fibres contains embedded silica bodies or protrusions. The mechanical contribution of the protrusions towards the integrity of the fibres is still not clearly investigated. In this work, 2D and 3D finite element simulations on the surface and cross section of the fibres, respectively, were performed. The information for the models was obtained from scanning electron microscopy analysis and mechanical tests for the silica body characteristics and elastic modulus, respectively. Different silica bodies arrangements and the effect of spiked geometry of the silica bodies was investigated using 2D models. Cohesive zone modelling was introduced to simulate damage or debonding between the interface of silica bodies and fibre. A 3D finite element model was later developed consisting of a silica body (sphere) embedded halfway in the matrix. The numerical results showed that the 2D model was sensitive to critical stress compared to silica bodies spiked geometry, arrangement of silica bodies on the fibre surface, and cohesive energy. On the other hand, the results showed that for 3D models with thicknesses larger than 0.2 mm, the effect of the silica bodies on the elasticity of the fibre was not significant.
format Article
author Omar, Farah Nadia
P. Mohammed, Mohd Afandi
Samsu Baharuddin, Azhari
spellingShingle Omar, Farah Nadia
P. Mohammed, Mohd Afandi
Samsu Baharuddin, Azhari
Effect of silica bodies on the mechanical behaviour of oil palm empty fruit bunch fibres
author_facet Omar, Farah Nadia
P. Mohammed, Mohd Afandi
Samsu Baharuddin, Azhari
author_sort Omar, Farah Nadia
title Effect of silica bodies on the mechanical behaviour of oil palm empty fruit bunch fibres
title_short Effect of silica bodies on the mechanical behaviour of oil palm empty fruit bunch fibres
title_full Effect of silica bodies on the mechanical behaviour of oil palm empty fruit bunch fibres
title_fullStr Effect of silica bodies on the mechanical behaviour of oil palm empty fruit bunch fibres
title_full_unstemmed Effect of silica bodies on the mechanical behaviour of oil palm empty fruit bunch fibres
title_sort effect of silica bodies on the mechanical behaviour of oil palm empty fruit bunch fibres
publisher North Carolina State University
publishDate 2014
url http://psasir.upm.edu.my/id/eprint/37308/1/Effect%20of%20silica%20bodies%20on%20the%20mechanical%20behaviour%20of%20oil%20palm%20empty%20fruit%20bunch%20fibres.pdf
_version_ 1819295967198838784
score 13.4562235

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