Finite element analysis of rectangular composite plates subjected to a uniformly distributed load

This project is meant to study the maximum bending deflections of composite laminates when subjected to uniform loading and in various configurations, namely with varying laminate thicknesses, stacking sequences and boundary conditions. Anti-Symmetric Cross Ply and Symmetric Cross Ply laminates wi...

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Main Author: Chin, Yan Hunk
Other Authors: Chai Gin Boay
Format: Final Year Project
Language:English
Published: Nanyang Technological University 2024
Subjects:
Online Access:https://hdl.handle.net/10356/177864
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1778642024-05-31T14:02:51Z Finite element analysis of rectangular composite plates subjected to a uniformly distributed load Chin, Yan Hunk Chai Gin Boay School of Mechanical and Aerospace Engineering MGBCHAI@ntu.edu.sg Engineering Finite element analysis Composite materials This project is meant to study the maximum bending deflections of composite laminates when subjected to uniform loading and in various configurations, namely with varying laminate thicknesses, stacking sequences and boundary conditions. Anti-Symmetric Cross Ply and Symmetric Cross Ply laminates with 2-ply to 16-ply thicknesses are modelled using the Finite Element Analysis software ANSYS to study the effect of bending-extension coupling on laminate bending deflections. Bending-extension coupling terms B11 are present in Anti-Symmetric Cross Ply laminates but not in Symmetric Cross Ply laminates. Previous studies indicate that coupling effect increases the bending deflection of a laminate. This study reveals that only the 2-ply Anti-Symmetric laminate shows a higher bending deflection due to coupling effect, with the other ply thicknesses of the Anti-Symmetric laminate having a lower bending deflection than the Symmetric laminate. The effects of the various simply supported boundary conditions S1 to S4 are analysed and it shows that S1 conditions largely correspond with S3 conditions, whereas S2 conditions largely correspond with S4 conditions, even when the boundary conditions are mixed. Overall, the results from Finite Element Analysis are validated by theoretical calculations using previously derived formulas and the MATLAB software to a high degree of accuracy. Therefore, the findings from ANSYS can be deemed to be reliable. This study reveals certain phenomenon that can be used to gain a deeper understanding of composite materials, such as the convergence of maximum bending deflection after the ply thickness exceeds 6-ply. Bachelor's degree 2024-05-31T14:02:51Z 2024-05-31T14:02:51Z 2024 Final Year Project (FYP) Chin, Y. H. (2024). Finite element analysis of rectangular composite plates subjected to a uniformly distributed load. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/177864 https://hdl.handle.net/10356/177864 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
Finite element analysis
Composite materials
spellingShingle Engineering
Finite element analysis
Composite materials
Chin, Yan Hunk
Finite element analysis of rectangular composite plates subjected to a uniformly distributed load
description This project is meant to study the maximum bending deflections of composite laminates when subjected to uniform loading and in various configurations, namely with varying laminate thicknesses, stacking sequences and boundary conditions. Anti-Symmetric Cross Ply and Symmetric Cross Ply laminates with 2-ply to 16-ply thicknesses are modelled using the Finite Element Analysis software ANSYS to study the effect of bending-extension coupling on laminate bending deflections. Bending-extension coupling terms B11 are present in Anti-Symmetric Cross Ply laminates but not in Symmetric Cross Ply laminates. Previous studies indicate that coupling effect increases the bending deflection of a laminate. This study reveals that only the 2-ply Anti-Symmetric laminate shows a higher bending deflection due to coupling effect, with the other ply thicknesses of the Anti-Symmetric laminate having a lower bending deflection than the Symmetric laminate. The effects of the various simply supported boundary conditions S1 to S4 are analysed and it shows that S1 conditions largely correspond with S3 conditions, whereas S2 conditions largely correspond with S4 conditions, even when the boundary conditions are mixed. Overall, the results from Finite Element Analysis are validated by theoretical calculations using previously derived formulas and the MATLAB software to a high degree of accuracy. Therefore, the findings from ANSYS can be deemed to be reliable. This study reveals certain phenomenon that can be used to gain a deeper understanding of composite materials, such as the convergence of maximum bending deflection after the ply thickness exceeds 6-ply.
author2 Chai Gin Boay
author_facet Chai Gin Boay
Chin, Yan Hunk
format Final Year Project
author Chin, Yan Hunk
author_sort Chin, Yan Hunk
title Finite element analysis of rectangular composite plates subjected to a uniformly distributed load
title_short Finite element analysis of rectangular composite plates subjected to a uniformly distributed load
title_full Finite element analysis of rectangular composite plates subjected to a uniformly distributed load
title_fullStr Finite element analysis of rectangular composite plates subjected to a uniformly distributed load
title_full_unstemmed Finite element analysis of rectangular composite plates subjected to a uniformly distributed load
title_sort finite element analysis of rectangular composite plates subjected to a uniformly distributed load
publisher Nanyang Technological University
publishDate 2024
url https://hdl.handle.net/10356/177864
_version_ 1814047256951652352