Study The Mechanical Properties Of Marine Composite Material

Noor Afendi , Nordin (2009) Study The Mechanical Properties Of Marine Composite Material. Project Report. UTeM, Melaka,Malaysia. (Submitted)

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Abstract

The marine and aerospace composite material is produced from advanced material and high complex technology processing. The hybrid synthetic fiber Kevlar and fiberglass with epoxy developed to study the mechanical properties of marine composite material. Different layers begin with 20 layers, 22 layers, and 24 layers of reinforcement design produced based on layers arrangement and material use. The composite designs produce with using Vacuum Infusion technique. There are four mechanical tests involves which are Tensile Test, Flexural Test, Impact Test, and Hardness Test. These entire tests will be following the ASTM D 3039, ASTM D 790, ASTM D 256, and ASTM D 2240 standard respectively. Specimen Type 5 as a reference specimen provided from SIRIM. Young’s modulus value for Specimen Type 2 and 3 are 41.41 % and 49.81 % higher from reference specimen and delamination is the common failure mode for almost specimen. From impact test, the specimen Type 4 impact energy higher 23.62 % and impact strength 15.58 % lower from the reference specimen. Specimen Type 2 more hardens 0.95 % from the reference specimen. The combination of Kevlar and fiberglass can replaced current material from observation and data analysis. The best composition is Type 3 which contains 11 plies of WV Kevlar and fiberglass with thickness 7.5 ± 0.2 mm has Young’s modulus, impact strength and hardness value are 4757.75 MPa, 0.633 J/mm² and 83.5. All the specimen result has small different percentage compare to the reference specimen where it made from different processing method that involved high technology such as using autoclave to cure the specimen respectively.

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