Finite element analysis of perforated metal sheets

Perforated sheet metals have a wide variety of applications in engineering such as auto parts, computers, aerospace technology and even architectural design. Due to the increasing need for lightweight and efficient structures, perforated sheet metals have become a popular alternative to conventional...

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Main Author: Ang, Russel Zhi Xiang
Other Authors: Sellakkutti Rajendran
Format: Final Year Project
Language:English
Published: Nanyang Technological University 2022
Subjects:
Online Access:https://hdl.handle.net/10356/158968
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1589682023-03-04T20:14:21Z Finite element analysis of perforated metal sheets Ang, Russel Zhi Xiang Sellakkutti Rajendran School of Mechanical and Aerospace Engineering MSRajendran@ntu.edu.sg Engineering::Mechanical engineering Perforated sheet metals have a wide variety of applications in engineering such as auto parts, computers, aerospace technology and even architectural design. Due to the increasing need for lightweight and efficient structures, perforated sheet metals have become a popular alternative to conventional sheet metals. In this project, the stresses, deflections, and vibration characteristics of perforated sheets are studied using FEA. ANSYS-Mechanical APDL (ANSYS 2021 R1 Student Version) is used for this purpose. 2D models of perforated sheets with varying number of holes are constructed using ANSYS preprocessor. The models are meshed with solid 183 elements and subjected to tensile loading. Using the computed tensile deformations, equivalent Young’s modulus and Poisson’s ratio are determined. The load carrying capacity (i.e., the maximum load the plate can carry before yield failure) is also determined for models with varying number of holes. As an attempt to verify the effectiveness of the equivalent Young’s modulus and Poisson’s ratio, plates without perforations are modelled with the equivalent Young’s modulus and Poisson’s ratio, and the displacements are computed and compared with that of the perforated models. Free Vibration analysis is also conducted to determine the natural frequencies and mode shapes of the perforated metal sheets and a verification analysis is also carried out to study if a metal plate without perforations using the equivalent material properties yields natural frequencies similar to that of perforated models. The effectiveness of the equivalent material properties is also tested on a more realistic problem involving axial as well as bending deformations. Based on the investigations, the equivalent material properties are found to be accurate in axial loading conditions rather than coupled bending cum axial loading deformations. Bachelor of Engineering (Mechanical Engineering) 2022-06-08T03:35:01Z 2022-06-08T03:35:01Z 2022 Final Year Project (FYP) Ang, R. Z. X. (2022). Finite element analysis of perforated metal sheets. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/158968 https://hdl.handle.net/10356/158968 en B176 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
Ang, Russel Zhi Xiang
Finite element analysis of perforated metal sheets
description Perforated sheet metals have a wide variety of applications in engineering such as auto parts, computers, aerospace technology and even architectural design. Due to the increasing need for lightweight and efficient structures, perforated sheet metals have become a popular alternative to conventional sheet metals. In this project, the stresses, deflections, and vibration characteristics of perforated sheets are studied using FEA. ANSYS-Mechanical APDL (ANSYS 2021 R1 Student Version) is used for this purpose. 2D models of perforated sheets with varying number of holes are constructed using ANSYS preprocessor. The models are meshed with solid 183 elements and subjected to tensile loading. Using the computed tensile deformations, equivalent Young’s modulus and Poisson’s ratio are determined. The load carrying capacity (i.e., the maximum load the plate can carry before yield failure) is also determined for models with varying number of holes. As an attempt to verify the effectiveness of the equivalent Young’s modulus and Poisson’s ratio, plates without perforations are modelled with the equivalent Young’s modulus and Poisson’s ratio, and the displacements are computed and compared with that of the perforated models. Free Vibration analysis is also conducted to determine the natural frequencies and mode shapes of the perforated metal sheets and a verification analysis is also carried out to study if a metal plate without perforations using the equivalent material properties yields natural frequencies similar to that of perforated models. The effectiveness of the equivalent material properties is also tested on a more realistic problem involving axial as well as bending deformations. Based on the investigations, the equivalent material properties are found to be accurate in axial loading conditions rather than coupled bending cum axial loading deformations.
author2 Sellakkutti Rajendran
author_facet Sellakkutti Rajendran
Ang, Russel Zhi Xiang
format Final Year Project
author Ang, Russel Zhi Xiang
author_sort Ang, Russel Zhi Xiang
title Finite element analysis of perforated metal sheets
title_short Finite element analysis of perforated metal sheets
title_full Finite element analysis of perforated metal sheets
title_fullStr Finite element analysis of perforated metal sheets
title_full_unstemmed Finite element analysis of perforated metal sheets
title_sort finite element analysis of perforated metal sheets
publisher Nanyang Technological University
publishDate 2022
url https://hdl.handle.net/10356/158968
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