Numerical characterisation of hollow sphere composites based on perforated inclusions

Metallic hollow sphere structures (MHSS) are a new type of reinforced materials and can be classified as an advanced composite material. A modified metallic hollow sphere MHS geometry which introduced the perforation becomes the main model in this research. This structure is called a perforated holl...

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Main Author:	Sulong, Mohd. Ayub
Format:	Thesis
Language:	English
Published:	2011
Subjects:	T Technology (General) TJ Mechanical engineering and machinery
Online Access:	http://eprints.utm.my/id/eprint/14784/5/MohdAyubSulongMFKM2011.pdf
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id	my-utm-ep.14784
record_format	uketd_dc
spelling	my-utm-ep.147842018-05-27T03:19:58Z Numerical characterisation of hollow sphere composites based on perforated inclusions 2011-11 Sulong, Mohd. Ayub T Technology (General) TJ Mechanical engineering and machinery Metallic hollow sphere structures (MHSS) are a new type of reinforced materials and can be classified as an advanced composite material. A modified metallic hollow sphere MHS geometry which introduced the perforation becomes the main model in this research. This structure is called a perforated hollow sphere structures (PHSS) which is opened to be infiltrated by the matrix to fully embed it and form a composite. PHSS composites offer a new field of mechanical properties compared to cellular structures studied by other researchers. Emphasis will be given to determine the influence of the modified perforation diameter of PHSS composite in terms of macroscopic mechanical properties (e.g. Young’s modulus and Poisson’s ratio). In addition, the mechanical properties of PHSS composites were also compared to hollow sphere (HS) composites (with and without filled matrix). A perforation introduced in the sphere shells obviously changes the mechanical properties of the PHSS composite, e.g. Young’s modulus and Poisson’s ratio. The result of the investigation revealed that these values decrease as the perforation diameter increases. PHSS composite models were simulated based on the unit cell approach by means of the Finite Element (FE) method. This method can reduce the costs of experimental tests and provides more information on possible mechanical properties of perforated hollow sphere structures (PHSS) composites. Nevertheless, experimental tests are still necessary and should be conducted in the future for validation purpose. 2011-11 Thesis http://eprints.utm.my/id/eprint/14784/ http://eprints.utm.my/id/eprint/14784/5/MohdAyubSulongMFKM2011.pdf application/pdf en public masters Universiti Teknologi Malaysia, Faculty of Mechanical Engineering Faculty of Mechanical Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	T Technology (General) TJ Mechanical engineering and machinery
spellingShingle	T Technology (General) TJ Mechanical engineering and machinery Sulong, Mohd. Ayub Numerical characterisation of hollow sphere composites based on perforated inclusions
description	Metallic hollow sphere structures (MHSS) are a new type of reinforced materials and can be classified as an advanced composite material. A modified metallic hollow sphere MHS geometry which introduced the perforation becomes the main model in this research. This structure is called a perforated hollow sphere structures (PHSS) which is opened to be infiltrated by the matrix to fully embed it and form a composite. PHSS composites offer a new field of mechanical properties compared to cellular structures studied by other researchers. Emphasis will be given to determine the influence of the modified perforation diameter of PHSS composite in terms of macroscopic mechanical properties (e.g. Young’s modulus and Poisson’s ratio). In addition, the mechanical properties of PHSS composites were also compared to hollow sphere (HS) composites (with and without filled matrix). A perforation introduced in the sphere shells obviously changes the mechanical properties of the PHSS composite, e.g. Young’s modulus and Poisson’s ratio. The result of the investigation revealed that these values decrease as the perforation diameter increases. PHSS composite models were simulated based on the unit cell approach by means of the Finite Element (FE) method. This method can reduce the costs of experimental tests and provides more information on possible mechanical properties of perforated hollow sphere structures (PHSS) composites. Nevertheless, experimental tests are still necessary and should be conducted in the future for validation purpose.
format	Thesis
qualification_level	Master's degree
author	Sulong, Mohd. Ayub
author_facet	Sulong, Mohd. Ayub
author_sort	Sulong, Mohd. Ayub
title	Numerical characterisation of hollow sphere composites based on perforated inclusions
title_short	Numerical characterisation of hollow sphere composites based on perforated inclusions
title_full	Numerical characterisation of hollow sphere composites based on perforated inclusions
title_fullStr	Numerical characterisation of hollow sphere composites based on perforated inclusions
title_full_unstemmed	Numerical characterisation of hollow sphere composites based on perforated inclusions
title_sort	numerical characterisation of hollow sphere composites based on perforated inclusions
granting_institution	Universiti Teknologi Malaysia, Faculty of Mechanical Engineering
granting_department	Faculty of Mechanical Engineering
publishDate	2011
url	http://eprints.utm.my/id/eprint/14784/5/MohdAyubSulongMFKM2011.pdf
_version_	1747814986813538304

Numerical characterisation of hollow sphere composites based on perforated inclusions

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