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Study of the Effect of Patch Bonded Surface Area and Shape on Flexural Strength of Glass/Polyester Composite using External Bonded Repair Technique

Abu Bakar, Muhamad Faizal (2001) Study of the Effect of Patch Bonded Surface Area and Shape on Flexural Strength of Glass/Polyester Composite using External Bonded Repair Technique. IRC, Universiti Teknologi PETRONAS. (Unpublished)

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Abstract

The objective of this project is to investigate tbe effectiveness of patch surface area and shape on flexural strength of the composite material. The material under study is glass/polyester composite and it is prepared by using hand lay-up technique. The patch shapes under investigation are square and octagonal. Five different patch surface areas were prepared varying from 2mm until 8mm. The parent laminates were damaged by drilling a standard 8.42mm diameter hole in the middle of it as artificial damage. A piece of composite material is tben attached to the original primary composite structure using an adhesive to restore the original performance of tbe composite. The flexural test is conducted under ASTM Standard D790 by using three point loading system. However, from the results obtained from the test, it was found that the flexural yield strength value is more relevant to be calculated rather than flexural strength due to the constraints of the test specimen.

Item Type: Final Year Project
Academic Subject : Academic Department - Mechanical Engineering - Materials - Engineering materials - Metals alloys - Fabrication
Subject: T Technology > TJ Mechanical engineering and machinery
Divisions: Engineering > Mechanical
Depositing User: Ahmad Suhairi Mohamed Lazim
Date Deposited: 30 Mar 2015 11:54
Last Modified: 25 Jan 2017 09:47
URI: http://utpedia.utp.edu.my/id/eprint/15277

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