Flexural Properties of Tropical Natural Fibres Reinforced Epoxy Composites Prepared Using Vacuum Bagging Method

Fajrin, Jauhar and Pathurahman, Pathurahman and Suparjo, Suparjo and Handayani, Teti (2017) Flexural Properties of Tropical Natural Fibres Reinforced Epoxy Composites Prepared Using Vacuum Bagging Method. In: The 2nd International Conference on Science and Technology Joint International Conference Mataram University and University Malaya, 23-24 August 2017, Mataram, Indonesia.

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Abstract

This paper discusses the results of experimental investigation on the flexural properties of natural fibre composites prepared using vacuum bagging method. The reinforcement fibres were derived from tropical grown natural fibers which include jute, sisal, hemp and bamboo fibre that reinforced epoxy polymer resin. The flexural properties of each laminate were tested and assessed thoroughly. The results showed that all composite laminates have fairly comparable flexural strength which varied from 47.17 MPa for hemp fibre composite to 62.72 MPa for jute fiber composite. Natural fiber composites based on sisal and bamboo fibre provided almost comparable flexural strength, which was 54.35 MPa and 53.34 MPa, respectively. The flexural modulus properties differs by a significant amount. Jute fibre composite has the highest flexural modulus (3459 MPa), which is approximately 73 percent higher than bamboo fibre composite (2001 MPa), the lowest value reached in this study. Meanwhile, sisal and hemp fibre composite reached a slightly different flexural strength of 2322 MPa and 2489 MPa, respectively. In general, the results are comparable to the results of the previous studies. The stress-strain curves for all the tested laminates presented a linear elastic behaviour up to the final failure. Some specimens showed a slight strengthening beyond the ultimate load, and then collapsed in a sudden motion. Most of the specimens failed due to fracture at the bottom part under the loading point, which is a common failure mechanism of natural fiber composite tested under three point bending load.

Item Type:	Conference or Workshop Item (Paper)
Keywords (Kata Kunci):	Natural fiber composites, flexural properties, vacuum bagging method
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Divisions:	Fakultas Teknik
Depositing User:	Dr Jauhar Fajrin
Date Deposited:	16 Oct 2020 01:20
Last Modified:	16 Oct 2020 01:20
URI:	http://eprints.unram.ac.id/id/eprint/17654

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