Experimental study of acoustic emission technique for concrete defect detection

The process of structural health monitoring (SHM) involves monitoring a structure over a period of time using appropriate sensors, extracting damage sensitive features from the measurements made by the sensors and analysing these features to determine the current state of the structure. Various tech...

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Main Author:	Ali A., Header
Format:	Thesis
Language:	English
Published:	2015
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://eprints.utm.my/id/eprint/53528/1/HeaderAliAMFKM2015.pdf
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id	my-utm-ep.53528
record_format	uketd_dc
spelling	my-utm-ep.535282020-07-19T07:21:28Z Experimental study of acoustic emission technique for concrete defect detection 2015-06 Ali A., Header TJ Mechanical engineering and machinery The process of structural health monitoring (SHM) involves monitoring a structure over a period of time using appropriate sensors, extracting damage sensitive features from the measurements made by the sensors and analysing these features to determine the current state of the structure. Various techniques are available for structural health monitoring of structures and acoustic emission (AE) is one technique that is finding an increasing use. Acoustic emission waves are the stress waves generated by the mechanical deformation of materials. AE waves produced inside a structure can be recorded by means of sensors attached on the surface. Analysis of these recorded signals can locate and assess the extent of damage. This project describes studies on the AE technique for health monitoring of concrete structures. Crack initiation or structural damage will result in wave propagation in solid and this can take place in various forms. Propagation of these waves is likely to be affected by the dimensions, surface properties and shape of the specimen. This, in turn, will affect source localization. Various laboratory test results will be presented on source localization, using pencil lead break tests. The results from the tests can be expected to aid in enhancement of knowledge of acoustic emission process and development of effective concrete structure diagnostics system. 2015-06 Thesis http://eprints.utm.my/id/eprint/53528/ http://eprints.utm.my/id/eprint/53528/1/HeaderAliAMFKM2015.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:83969 masters Universiti Teknologi Malaysia, Faculty of Mechanical Engineering Faculty of Mechanical Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Ali A., Header Experimental study of acoustic emission technique for concrete defect detection
description	The process of structural health monitoring (SHM) involves monitoring a structure over a period of time using appropriate sensors, extracting damage sensitive features from the measurements made by the sensors and analysing these features to determine the current state of the structure. Various techniques are available for structural health monitoring of structures and acoustic emission (AE) is one technique that is finding an increasing use. Acoustic emission waves are the stress waves generated by the mechanical deformation of materials. AE waves produced inside a structure can be recorded by means of sensors attached on the surface. Analysis of these recorded signals can locate and assess the extent of damage. This project describes studies on the AE technique for health monitoring of concrete structures. Crack initiation or structural damage will result in wave propagation in solid and this can take place in various forms. Propagation of these waves is likely to be affected by the dimensions, surface properties and shape of the specimen. This, in turn, will affect source localization. Various laboratory test results will be presented on source localization, using pencil lead break tests. The results from the tests can be expected to aid in enhancement of knowledge of acoustic emission process and development of effective concrete structure diagnostics system.
format	Thesis
qualification_level	Master's degree
author	Ali A., Header
author_facet	Ali A., Header
author_sort	Ali A., Header
title	Experimental study of acoustic emission technique for concrete defect detection
title_short	Experimental study of acoustic emission technique for concrete defect detection
title_full	Experimental study of acoustic emission technique for concrete defect detection
title_fullStr	Experimental study of acoustic emission technique for concrete defect detection
title_full_unstemmed	Experimental study of acoustic emission technique for concrete defect detection
title_sort	experimental study of acoustic emission technique for concrete defect detection
granting_institution	Universiti Teknologi Malaysia, Faculty of Mechanical Engineering
granting_department	Faculty of Mechanical Engineering
publishDate	2015
url	http://eprints.utm.my/id/eprint/53528/1/HeaderAliAMFKM2015.pdf
_version_	1747817573922111488

Experimental study of acoustic emission technique for concrete defect detection

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