Tensile testing of polymeric composites with oriented magnetic microplatelets

Natural composites have complex fracture patterns because of their intricate microstructures, which results in their extraordinary toughness. The microstructures of currently available reinforced composites have not yet developed to the same degree of complexity, yielding inferior characteristics. A...

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Main Author: Noraini Binte Abdul Wahab
Other Authors: Hortense Le Ferrand
Format: Final Year Project
Language:English
Published: Nanyang Technological University 2023
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Online Access:https://hdl.handle.net/10356/168127
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Institution: Nanyang Technological University
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spelling sg-ntu-dr.10356-1681272023-06-10T16:52:47Z Tensile testing of polymeric composites with oriented magnetic microplatelets Noraini Binte Abdul Wahab Hortense Le Ferrand School of Mechanical and Aerospace Engineering Hortense@ntu.edu.sg Engineering::Mechanical engineering Natural composites have complex fracture patterns because of their intricate microstructures, which results in their extraordinary toughness. The microstructures of currently available reinforced composites have not yet developed to the same degree of complexity, yielding inferior characteristics. A promising new technique called magnetically assisted slip casting (MASC) has been developed and implemented for creating periodically structured assemblies of dense ceramics. This technique utilises rotating magnetic field, which allows for the manipulation of ceramic microplatelets, making it possible for the creation of necessary and various complex microstructures. To investigate the capabilities and constraints of MASC-fabricated structures, ceramic green bodies with various orientation were fabricated. To replicate the biopolymeric mortar present in the natural composites, a polymer matrix was infiltrated into the obtained ceramic green bodies. Tensile tests were executed on the samples and its mechanical properties were studied, which showed that the alignment of microplatelets affects the strength and toughness. The results of the study showed that the orientation of the microplatelets had a significant impact on the mechanical properties of the composite material. It was found that the horizontally aligned samples performed the best when compared to the other samples. This superior performance was attributed to the jamming effect of the gypsum mould, which caused the horizontally aligned microplatelets to be curved towards the sides. As a result, the curved microplatelets provided greater resistance to failure, contributing to the enhanced tensile strength and toughness of the horizontally aligned samples. Bachelor of Engineering (Mechanical Engineering) 2023-06-08T13:40:25Z 2023-06-08T13:40:25Z 2023 Final Year Project (FYP) Noraini Binte Abdul Wahab (2023). Tensile testing of polymeric composites with oriented magnetic microplatelets. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/168127 https://hdl.handle.net/10356/168127 en B099 application/pdf Nanyang Technological University
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Mechanical engineering
spellingShingle Engineering::Mechanical engineering
Noraini Binte Abdul Wahab
Tensile testing of polymeric composites with oriented magnetic microplatelets
description Natural composites have complex fracture patterns because of their intricate microstructures, which results in their extraordinary toughness. The microstructures of currently available reinforced composites have not yet developed to the same degree of complexity, yielding inferior characteristics. A promising new technique called magnetically assisted slip casting (MASC) has been developed and implemented for creating periodically structured assemblies of dense ceramics. This technique utilises rotating magnetic field, which allows for the manipulation of ceramic microplatelets, making it possible for the creation of necessary and various complex microstructures. To investigate the capabilities and constraints of MASC-fabricated structures, ceramic green bodies with various orientation were fabricated. To replicate the biopolymeric mortar present in the natural composites, a polymer matrix was infiltrated into the obtained ceramic green bodies. Tensile tests were executed on the samples and its mechanical properties were studied, which showed that the alignment of microplatelets affects the strength and toughness. The results of the study showed that the orientation of the microplatelets had a significant impact on the mechanical properties of the composite material. It was found that the horizontally aligned samples performed the best when compared to the other samples. This superior performance was attributed to the jamming effect of the gypsum mould, which caused the horizontally aligned microplatelets to be curved towards the sides. As a result, the curved microplatelets provided greater resistance to failure, contributing to the enhanced tensile strength and toughness of the horizontally aligned samples.
author2 Hortense Le Ferrand
author_facet Hortense Le Ferrand
Noraini Binte Abdul Wahab
format Final Year Project
author Noraini Binte Abdul Wahab
author_sort Noraini Binte Abdul Wahab
title Tensile testing of polymeric composites with oriented magnetic microplatelets
title_short Tensile testing of polymeric composites with oriented magnetic microplatelets
title_full Tensile testing of polymeric composites with oriented magnetic microplatelets
title_fullStr Tensile testing of polymeric composites with oriented magnetic microplatelets
title_full_unstemmed Tensile testing of polymeric composites with oriented magnetic microplatelets
title_sort tensile testing of polymeric composites with oriented magnetic microplatelets
publisher Nanyang Technological University
publishDate 2023
url https://hdl.handle.net/10356/168127
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