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Study of non-linear mechanical behavior of oil palm mesocarp fibers


Hanipah, Suhaiza Hanim and Loo, Yu Xiang and Mohammed, Mohd Afandi P. and Baharuddin, Azhari Samsu (2016) Study of non-linear mechanical behavior of oil palm mesocarp fibers. Journal of Natural Fibers, 14 (2). pp. 153-165. ISSN 1544-0478; ESSN: 1544-046X


This work investigates the non-linear mechanical behavior of oil palm mesocarp fibers (OPMF) using tensile tests, microstructure observation, and finite element models. The micrograph images showed the fiber’s surface with partly embedded silica bodies, while the cross section contained cell wall structures. Viscoelastic behavior was observed when the fibers were relaxed over time after being stretched, whereas the stress--strain curves from the cyclic tests indicated permanent set (plastic strain) due to the fibers’ deformation. Finite element models were developed comprising single particles (2D and 3D) and 2D multi-particle geometries representing silica bodies embedded in a matrix representing the fiber. The modeling results suggested that silica bodies do not contribute much to the integrity of OPMF, highlighting the need to have a more complex model that considers cellular structures of the fibers and a constitutive relationship of cellulose, hemicelluloses, and lignin.

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Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
DOI Number: https://doi.org/10.1080/15440478.2015.1093575
Publisher: Taylor and Francis Ltd.
Keywords: Cohesive zone modelling; Finite element method; Oil palm mesocarp fibers; Viscoelastic
Depositing User: Mohd Hafiz Che Mahasan
Date Deposited: 26 Sep 2018 02:54
Last Modified: 26 Sep 2018 02:54
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1080/15440478.2015.1093575
URI: http://psasir.upm.edu.my/id/eprint/63322
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