Study On Fatigue Damage Of Concrete Beams With Variable Notched Depth Using Acoustic Emission Technique

Concrete structure is the main materials used in constructions including the major and minor structure such as bridges, airports, highways pavements and offshore structure where this structures are subjected to the fatigue load. Concrete structure study on fatigue damaged by utilizing non-destructiv...

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Main Author:	Kudus, Sakhiah Abdul
Format:	Thesis
Language:	English
Published:	2014
Subjects:	TA683.9.L431 Prestressed concrete
Online Access:	http://eprints.usm.my/49048/1/SAKHIAH%20BINTI%20ABDUL%20KUDUS_HJ.pdf
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id	my-usm-ep.49048
record_format	uketd_dc
spelling	my-usm-ep.490482021-04-28T03:08:18Z Study On Fatigue Damage Of Concrete Beams With Variable Notched Depth Using Acoustic Emission Technique 2014-02 Kudus, Sakhiah Abdul TA683.9.L431 Prestressed concrete Concrete structure is the main materials used in constructions including the major and minor structure such as bridges, airports, highways pavements and offshore structure where this structures are subjected to the fatigue load. Concrete structure study on fatigue damaged by utilizing non-destructive testing (NDT) on concrete structure has been widely explored nowadays. Acoustic emission (AE) is one of the powerful NDT tool used for evaluating the damage occurrence in concrete structure. The present study emphasised on the using of AE in Structure Health Monitoring (SHM), on the notched beam samples undergoing fatigue loading. The main interest of this study was to investigate the capability of AE in quantifying the damage level of variable notch to depth ratios of concrete specimens which were subjected to fatigue loading. The four types of plain concrete beams with the same dimensions (100 x 200 x 600mm) but different notch to depth ratios was tested. A total of sixteen samples were tested under variables and increasing amplitudes of cyclic loading in closed loop servo-controlled hydraulic machine. The studied samples were tested in three points bending setup under monotonic and fatigue cyclic loading with each type of the notched beams contained seven beams; three beams for monotonic loading and four beams for fatigue cyclic loading. In order to detect and to collect the AE data, Micro-SAMOS (μ-SAMOS) digital AE system and R6I sensor type were used while data analyses were carried out using AEwin software. In addition, the b-value, the Ib-value, severity analysis and intensity analysis methods were applied to quantify the fatigue damage level of the notched beams undergoing fatigue loading. The AE technique was successfully used to determine fatigue damage mechanism and to classify the damage level occurrence during an increasing cyclic loading on notched concrete beams. 2014-02 Thesis http://eprints.usm.my/49048/ http://eprints.usm.my/49048/1/SAKHIAH%20BINTI%20ABDUL%20KUDUS_HJ.pdf application/pdf en public masters Universiti Sains Malaysia Pusat Pengajian Kejuruteraan Awam
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	TA683.9.L431 Prestressed concrete
spellingShingle	TA683.9.L431 Prestressed concrete Kudus, Sakhiah Abdul Study On Fatigue Damage Of Concrete Beams With Variable Notched Depth Using Acoustic Emission Technique
description	Concrete structure is the main materials used in constructions including the major and minor structure such as bridges, airports, highways pavements and offshore structure where this structures are subjected to the fatigue load. Concrete structure study on fatigue damaged by utilizing non-destructive testing (NDT) on concrete structure has been widely explored nowadays. Acoustic emission (AE) is one of the powerful NDT tool used for evaluating the damage occurrence in concrete structure. The present study emphasised on the using of AE in Structure Health Monitoring (SHM), on the notched beam samples undergoing fatigue loading. The main interest of this study was to investigate the capability of AE in quantifying the damage level of variable notch to depth ratios of concrete specimens which were subjected to fatigue loading. The four types of plain concrete beams with the same dimensions (100 x 200 x 600mm) but different notch to depth ratios was tested. A total of sixteen samples were tested under variables and increasing amplitudes of cyclic loading in closed loop servo-controlled hydraulic machine. The studied samples were tested in three points bending setup under monotonic and fatigue cyclic loading with each type of the notched beams contained seven beams; three beams for monotonic loading and four beams for fatigue cyclic loading. In order to detect and to collect the AE data, Micro-SAMOS (μ-SAMOS) digital AE system and R6I sensor type were used while data analyses were carried out using AEwin software. In addition, the b-value, the Ib-value, severity analysis and intensity analysis methods were applied to quantify the fatigue damage level of the notched beams undergoing fatigue loading. The AE technique was successfully used to determine fatigue damage mechanism and to classify the damage level occurrence during an increasing cyclic loading on notched concrete beams.
format	Thesis
qualification_level	Master's degree
author	Kudus, Sakhiah Abdul
author_facet	Kudus, Sakhiah Abdul
author_sort	Kudus, Sakhiah Abdul
title	Study On Fatigue Damage Of Concrete Beams With Variable Notched Depth Using Acoustic Emission Technique
title_short	Study On Fatigue Damage Of Concrete Beams With Variable Notched Depth Using Acoustic Emission Technique
title_full	Study On Fatigue Damage Of Concrete Beams With Variable Notched Depth Using Acoustic Emission Technique
title_fullStr	Study On Fatigue Damage Of Concrete Beams With Variable Notched Depth Using Acoustic Emission Technique
title_full_unstemmed	Study On Fatigue Damage Of Concrete Beams With Variable Notched Depth Using Acoustic Emission Technique
title_sort	study on fatigue damage of concrete beams with variable notched depth using acoustic emission technique
granting_institution	Universiti Sains Malaysia
granting_department	Pusat Pengajian Kejuruteraan Awam
publishDate	2014
url	http://eprints.usm.my/49048/1/SAKHIAH%20BINTI%20ABDUL%20KUDUS_HJ.pdf
_version_	1747821978770735104

Study On Fatigue Damage Of Concrete Beams With Variable Notched Depth Using Acoustic Emission Technique

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