Ultrasonic monitoring for adhesive materials

Resins play an extremely crucial role in many applications from dental composites, pipe insulator and adhesive to shellac. Among the wide categories of resins, thermosetting resins such as epoxies are well-known for its outstanding mechanical properties, high resistivity to environmental degradation...

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Main Author: Chen, Niji Yan'an
Other Authors: Fan Zheng, David
Format: Final Year Project
Language:English
Published: 2017
Subjects:
Online Access:http://hdl.handle.net/10356/73072
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-730722023-03-04T18:51:52Z Ultrasonic monitoring for adhesive materials Chen, Niji Yan'an Fan Zheng, David School of Mechanical and Aerospace Engineering DRNTU::Engineering Resins play an extremely crucial role in many applications from dental composites, pipe insulator and adhesive to shellac. Among the wide categories of resins, thermosetting resins such as epoxies are well-known for its outstanding mechanical properties, high resistivity to environmental degradation and high adhesive strength. The epoxy employed in this experiment is Loctite EA 9396, which is a two-part adhesive of tetraglycidyl diaminodiphenylmethane and epichlorohydrin-4,4’-isopropylidene diphenol resin. A non-destructive testing technique, Ultrasound would also be employed. The objective of this project is to characterize the material properties of Loctite EA 9396 and investigate the possibility to use ultrasonic bulk waves for the monitoring of modulus of adhesive materials. The transmission of ultrasonic waves to determine the cure state of epoxy will be discussed in this report, since longitudinal and shear velocity are components of Young’s modulus and Poisson’s ratio. The fundamentals of ultrasound and graphs of amplitude with respect to time are also examined. In this report, the recent experiments conducted on ultrasonic cure monitoring will be analyzed to show the reliability of ultrasonic wave propagation for characterization of the cure state of epoxy. It would also focus on the principles of ultrasound testing on epoxy. Bachelor of Engineering (Mechanical Engineering) 2017-12-29T04:22:12Z 2017-12-29T04:22:12Z 2017 Final Year Project (FYP) http://hdl.handle.net/10356/73072 en Nanyang Technological University 32 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
spellingShingle DRNTU::Engineering
Chen, Niji Yan'an
Ultrasonic monitoring for adhesive materials
description Resins play an extremely crucial role in many applications from dental composites, pipe insulator and adhesive to shellac. Among the wide categories of resins, thermosetting resins such as epoxies are well-known for its outstanding mechanical properties, high resistivity to environmental degradation and high adhesive strength. The epoxy employed in this experiment is Loctite EA 9396, which is a two-part adhesive of tetraglycidyl diaminodiphenylmethane and epichlorohydrin-4,4’-isopropylidene diphenol resin. A non-destructive testing technique, Ultrasound would also be employed. The objective of this project is to characterize the material properties of Loctite EA 9396 and investigate the possibility to use ultrasonic bulk waves for the monitoring of modulus of adhesive materials. The transmission of ultrasonic waves to determine the cure state of epoxy will be discussed in this report, since longitudinal and shear velocity are components of Young’s modulus and Poisson’s ratio. The fundamentals of ultrasound and graphs of amplitude with respect to time are also examined. In this report, the recent experiments conducted on ultrasonic cure monitoring will be analyzed to show the reliability of ultrasonic wave propagation for characterization of the cure state of epoxy. It would also focus on the principles of ultrasound testing on epoxy.
author2 Fan Zheng, David
author_facet Fan Zheng, David
Chen, Niji Yan'an
format Final Year Project
author Chen, Niji Yan'an
author_sort Chen, Niji Yan'an
title Ultrasonic monitoring for adhesive materials
title_short Ultrasonic monitoring for adhesive materials
title_full Ultrasonic monitoring for adhesive materials
title_fullStr Ultrasonic monitoring for adhesive materials
title_full_unstemmed Ultrasonic monitoring for adhesive materials
title_sort ultrasonic monitoring for adhesive materials
publishDate 2017
url http://hdl.handle.net/10356/73072
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