Large deflection of composite beams in bending

The objective of this project is to derive a mathematical model to analyze large flexural deflection of composite beams with consideration of end movement. The simple beam structure made of composite material and experience large beam deflection were studied. Previous FYP experimental results of cen...

Full description

Saved in:
Bibliographic Details
Main Author: Mao, Shihai
Other Authors: Chai Gin Boay
Format: Final Year Project
Language:English
Published: 2017
Subjects:
Online Access:http://hdl.handle.net/10356/71511
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: Nanyang Technological University
Language: English
id sg-ntu-dr.10356-71511
record_format dspace
spelling sg-ntu-dr.10356-715112023-03-04T18:50:28Z Large deflection of composite beams in bending Mao, Shihai Chai Gin Boay School of Mechanical and Aerospace Engineering DRNTU::Engineering::Mechanical engineering The objective of this project is to derive a mathematical model to analyze large flexural deflection of composite beams with consideration of end movement. The simple beam structure made of composite material and experience large beam deflection were studied. Previous FYP experimental results of central deflection of CFRP (AX-6200-C) composite specimens with different spans 80mm, 100mm and 120mm were used as a source of comparison and validation of the mathematical model. The mathematical modelling of large deflection of composite beam is derived by defining the material property and beam geometry, using Classical Laminate Analysis method to get Young’s Modulus, utilizing Transformed stiffness to predict bending modulus EI and deriving the formula of large central deflection of beams. Subsequently, the force to cause ply failure of different layers was calculated as boundary condition of the mathematical modelling to predict the central deflection of composite beams. The graph of load P vs centre deflection δ was plotted, and the first ply failure was also included in the response curve. Finally, the experiment results and mathematical results were compared to verify the reliability of the mathematical modelling. Future work such as mathematical modelling of different composite beams, predicting of breaking point and improvement of measure instruments were recommended for further research project. Bachelor of Engineering (Mechanical Engineering) 2017-05-17T05:49:30Z 2017-05-17T05:49:30Z 2017 Final Year Project (FYP) http://hdl.handle.net/10356/71511 en Nanyang Technological University 69 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Mechanical engineering
spellingShingle DRNTU::Engineering::Mechanical engineering
Mao, Shihai
Large deflection of composite beams in bending
description The objective of this project is to derive a mathematical model to analyze large flexural deflection of composite beams with consideration of end movement. The simple beam structure made of composite material and experience large beam deflection were studied. Previous FYP experimental results of central deflection of CFRP (AX-6200-C) composite specimens with different spans 80mm, 100mm and 120mm were used as a source of comparison and validation of the mathematical model. The mathematical modelling of large deflection of composite beam is derived by defining the material property and beam geometry, using Classical Laminate Analysis method to get Young’s Modulus, utilizing Transformed stiffness to predict bending modulus EI and deriving the formula of large central deflection of beams. Subsequently, the force to cause ply failure of different layers was calculated as boundary condition of the mathematical modelling to predict the central deflection of composite beams. The graph of load P vs centre deflection δ was plotted, and the first ply failure was also included in the response curve. Finally, the experiment results and mathematical results were compared to verify the reliability of the mathematical modelling. Future work such as mathematical modelling of different composite beams, predicting of breaking point and improvement of measure instruments were recommended for further research project.
author2 Chai Gin Boay
author_facet Chai Gin Boay
Mao, Shihai
format Final Year Project
author Mao, Shihai
author_sort Mao, Shihai
title Large deflection of composite beams in bending
title_short Large deflection of composite beams in bending
title_full Large deflection of composite beams in bending
title_fullStr Large deflection of composite beams in bending
title_full_unstemmed Large deflection of composite beams in bending
title_sort large deflection of composite beams in bending
publishDate 2017
url http://hdl.handle.net/10356/71511
_version_ 1759854713678856192