A novel mechanical metamaterial with tailorable vibration damping and compression behavior

Mechanical Metamaterials are a novel category of engineered materials that feature extraordinary mechanical properties not commonly found in traditional materials. These specially engineered materials do not derive their unique properties from the composition of the base material, but rather from...

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Main Author: Tan, Eugene Xing Hao
Other Authors: Zhou Kun
Format: Final Year Project
Language:English
Published: Nanyang Technological University 2024
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Online Access:https://hdl.handle.net/10356/176142
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1761422024-05-18T16:54:00Z A novel mechanical metamaterial with tailorable vibration damping and compression behavior Tan, Eugene Xing Hao Zhou Kun School of Mechanical and Aerospace Engineering kzhou@ntu.edu.sg Engineering Mechanical metamaterial Tailorable vibration damping Finite element analysis Mechanical Metamaterials are a novel category of engineered materials that feature extraordinary mechanical properties not commonly found in traditional materials. These specially engineered materials do not derive their unique properties from the composition of the base material, but rather from the internal geometry of the metamaterial itself. In this report, a novel second-order hierarchical Mechanical Metamaterial, constructed from a conventional Octet-truss lattice with 3D Chiral lattice structure embedded within the trusses, is proposed as a space filling lattice, which possesses both superior mechanical properties and tailorable passive damping characterises. The addition of the 3D Chiral lattices would introduce laterally self-rotating elements into the Octet-truss lattice, which would disrupt the transmission of vibrations through the lattice by transforming the longitudinal waves to lateral ones, achieving a vibration damping effect. The efficacies of the mechanical properties and the frequency response characterizes of the proposed novel Mechanical Metamaterial will be evaluated and analyzed through the Finite Element Method as well as through experimental means. Laser Powder Bed Fusion Additive Manufacturing was employed to fabricate the various configuration of novel Mechanical Metamaterials evaluated to validate the results obtained from the Finite Element Analysis. Bachelor's degree 2024-05-14T01:53:53Z 2024-05-14T01:53:53Z 2024 Final Year Project (FYP) Tan, E. X. H. (2024). A novel mechanical metamaterial with tailorable vibration damping and compression behavior. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/176142 https://hdl.handle.net/10356/176142 en 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 metamaterial
Tailorable vibration damping
Finite element analysis
spellingShingle Engineering
Mechanical metamaterial
Tailorable vibration damping
Finite element analysis
Tan, Eugene Xing Hao
A novel mechanical metamaterial with tailorable vibration damping and compression behavior
description Mechanical Metamaterials are a novel category of engineered materials that feature extraordinary mechanical properties not commonly found in traditional materials. These specially engineered materials do not derive their unique properties from the composition of the base material, but rather from the internal geometry of the metamaterial itself. In this report, a novel second-order hierarchical Mechanical Metamaterial, constructed from a conventional Octet-truss lattice with 3D Chiral lattice structure embedded within the trusses, is proposed as a space filling lattice, which possesses both superior mechanical properties and tailorable passive damping characterises. The addition of the 3D Chiral lattices would introduce laterally self-rotating elements into the Octet-truss lattice, which would disrupt the transmission of vibrations through the lattice by transforming the longitudinal waves to lateral ones, achieving a vibration damping effect. The efficacies of the mechanical properties and the frequency response characterizes of the proposed novel Mechanical Metamaterial will be evaluated and analyzed through the Finite Element Method as well as through experimental means. Laser Powder Bed Fusion Additive Manufacturing was employed to fabricate the various configuration of novel Mechanical Metamaterials evaluated to validate the results obtained from the Finite Element Analysis.
author2 Zhou Kun
author_facet Zhou Kun
Tan, Eugene Xing Hao
format Final Year Project
author Tan, Eugene Xing Hao
author_sort Tan, Eugene Xing Hao
title A novel mechanical metamaterial with tailorable vibration damping and compression behavior
title_short A novel mechanical metamaterial with tailorable vibration damping and compression behavior
title_full A novel mechanical metamaterial with tailorable vibration damping and compression behavior
title_fullStr A novel mechanical metamaterial with tailorable vibration damping and compression behavior
title_full_unstemmed A novel mechanical metamaterial with tailorable vibration damping and compression behavior
title_sort novel mechanical metamaterial with tailorable vibration damping and compression behavior
publisher Nanyang Technological University
publishDate 2024
url https://hdl.handle.net/10356/176142
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