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Fatigue strength of woven kenaf fibre reinforced polyester composites

Che Abdul Aziz, Mohd Aswadi (2015) Fatigue strength of woven kenaf fibre reinforced polyester composites. Masters thesis, Universiti Tun Hussein Onn Malaysia.

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Abstract

Towards green material, fatigue life of woven kenaf fibre reinforced polyester composites is investigated. These samples produce by hand lay-up made. Four orientation were samples prepared from woven kenaf fiber composites which is 0°, 15°, 30° and 45°, thus number of layer namely one and two layers are used in this research. The experiments of tensile and fatigue tests were carried out to study the influences of the orientation of woven and number of the layer to the composites. The specimens are cycled to tension-tension fatigue loading at stress ratio 0.5 with 5 Hz of frequency to determine the fatigue life at given 5 stress levels. From data is obtained shows that the orientation angle 0° is the higher maximum stress and for the others of three orientations angle composites show maximum stress values almost similar. For fatigue test, it found a two layers woven kenaf fiber with [15°/0°] orientation samples shows the higher fatigue life than others. Diversify woven orientation cannot increases the maximum stress, but it can increase the fatigue life. The numbers of the layers is not resulted to the maximum stress at one and two layers because both are almost similar. The numbers of the layers mostly influence the fatigue life in this experiment because it shows two layers gives a higher fatigue life than one layer.

Item Type: Thesis (Masters)
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA401-492 Materials of engineering and construction. Mechanics of materials
Depositing User: Normajihan Abd. Rahman
Date Deposited: 06 Mar 2016 07:35
Last Modified: 06 Mar 2016 07:35
URI: http://eprints.uthm.edu.my/id/eprint/7541
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