Mechanical and ballistic properties of coir composite panel

The focus of the study about randomly-woven coir sheets is to determine its potential as a kinetic energy absorber with the aim of implementing the sheet as an impact-worthy constituent. Among the effects of this study are the extension in the service life of raw coir, nomination of coir sheet as a...

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Main Author:	Affandi, Nuraishah Bazilah
Format:	Thesis
Language:	English
Published:	2012
Subjects:	Coir Chemical kinetics Composite materials
Online Access:	http://psasir.upm.edu.my/id/eprint/52042/1/FK%202012%20138RR.pdf
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id	my-upm-ir.52042
record_format	uketd_dc
spelling	my-upm-ir.520422017-04-20T07:40:42Z Mechanical and ballistic properties of coir composite panel 2012-11 Affandi, Nuraishah Bazilah The focus of the study about randomly-woven coir sheets is to determine its potential as a kinetic energy absorber with the aim of implementing the sheet as an impact-worthy constituent. Among the effects of this study are the extension in the service life of raw coir, nomination of coir sheet as a competitive alternative to conventional materials and contribution towards the knowledge of coir in the continuous form as other studies tend to focus on coir in the discontinuous form. Tensile tests using a universal testing machine to determine the mechanical properties and ballistic impact tests using a light-gas gun and high-speed camera to determine the energy absorption properties were performed on fabricated specimens. The coir/epoxy composite specimen consisted of coir sheets layered together with epoxy resin minimally applied to adjacent exterior sheet surfaces,thus leaving the core of the sheet practically partially hollow, where the weight of the sheets and thickness of the resin were controlled. Through this work, a 1-layer of this composite behaves in a brittle fashion and has a modulus and tensile strength of 93.85 MPa and 2.77 MPa, respectively. The 2-layer and 3-layer behaves in a ductile fashion and has a modulus and tensile strength of 46.99 MPa and 1.77 MPa, and 40.07 MPa and 2.70 MPa, respectively. The relation between the number of layers and absorbed kinetic energy has too been discovered for this particular composite to be f(x) = 12:62x -0:02. To totally stop a projectile moving at 205 m/s, it has been found that a 10-layer composite (with a dimension of 100 mm (L) X 100 mm (W) X 8 mm (T) and weighing 12 g per sheet) of this fiber is needed. Coir Chemical kinetics Composite materials 2012-11 Thesis http://psasir.upm.edu.my/id/eprint/52042/ http://psasir.upm.edu.my/id/eprint/52042/1/FK%202012%20138RR.pdf application/pdf en public masters Universiti Putra Malaysia Coir Chemical kinetics Composite materials
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English
topic	Coir Chemical kinetics Composite materials
spellingShingle	Coir Chemical kinetics Composite materials Affandi, Nuraishah Bazilah Mechanical and ballistic properties of coir composite panel
description	The focus of the study about randomly-woven coir sheets is to determine its potential as a kinetic energy absorber with the aim of implementing the sheet as an impact-worthy constituent. Among the effects of this study are the extension in the service life of raw coir, nomination of coir sheet as a competitive alternative to conventional materials and contribution towards the knowledge of coir in the continuous form as other studies tend to focus on coir in the discontinuous form. Tensile tests using a universal testing machine to determine the mechanical properties and ballistic impact tests using a light-gas gun and high-speed camera to determine the energy absorption properties were performed on fabricated specimens. The coir/epoxy composite specimen consisted of coir sheets layered together with epoxy resin minimally applied to adjacent exterior sheet surfaces,thus leaving the core of the sheet practically partially hollow, where the weight of the sheets and thickness of the resin were controlled. Through this work, a 1-layer of this composite behaves in a brittle fashion and has a modulus and tensile strength of 93.85 MPa and 2.77 MPa, respectively. The 2-layer and 3-layer behaves in a ductile fashion and has a modulus and tensile strength of 46.99 MPa and 1.77 MPa, and 40.07 MPa and 2.70 MPa, respectively. The relation between the number of layers and absorbed kinetic energy has too been discovered for this particular composite to be f(x) = 12:62x -0:02. To totally stop a projectile moving at 205 m/s, it has been found that a 10-layer composite (with a dimension of 100 mm (L) X 100 mm (W) X 8 mm (T) and weighing 12 g per sheet) of this fiber is needed.
format	Thesis
qualification_level	Master's degree
author	Affandi, Nuraishah Bazilah
author_facet	Affandi, Nuraishah Bazilah
author_sort	Affandi, Nuraishah Bazilah
title	Mechanical and ballistic properties of coir composite panel
title_short	Mechanical and ballistic properties of coir composite panel
title_full	Mechanical and ballistic properties of coir composite panel
title_fullStr	Mechanical and ballistic properties of coir composite panel
title_full_unstemmed	Mechanical and ballistic properties of coir composite panel
title_sort	mechanical and ballistic properties of coir composite panel
granting_institution	Universiti Putra Malaysia
publishDate	2012
url	http://psasir.upm.edu.my/id/eprint/52042/1/FK%202012%20138RR.pdf
_version_	1747812084116094976

Mechanical and ballistic properties of coir composite panel

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