Identifying the Crack Nature Using b-Value Acoustic Emission Signal Analysis

Concrete is an important constituent of structures. The strength performance of the concrete decrease due to several factors. Concrete suffers from deterioration at a later stage. Early and constant identification of concrete deterioration is necessary. Nowadays, non-destructive testing (NDT) is wid...

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Main Authors: Saiful Bahari, Miera, Shahidan, Shahiron, Shukri, Mohammed, Mohd Zuki, Sharifah Salwa
Other Authors: Mohamed Nazri, Fadzli
Format: Book Section
Language:English
Published: Springer Nature 2020
Subjects:
Online Access:http://eprints.uthm.edu.my/1847/
http://eprints.uthm.edu.my/1847/1/Identifying%20the%20Crack%20Nature.pdf
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author Saiful Bahari, Miera
Shahidan, Shahiron
Shukri, Mohammed
Mohd Zuki, Sharifah Salwa
author2 Mohamed Nazri, Fadzli
author_facet Mohamed Nazri, Fadzli
Saiful Bahari, Miera
Shahidan, Shahiron
Shukri, Mohammed
Mohd Zuki, Sharifah Salwa
author_sort Saiful Bahari, Miera
building UTHM Institutional Repository
collection Online Access
description Concrete is an important constituent of structures. The strength performance of the concrete decrease due to several factors. Concrete suffers from deterioration at a later stage. Early and constant identification of concrete deterioration is necessary. Nowadays, non-destructive testing (NDT) is widely used especially on continuous real-time monitoring system with minimum labor involvement. It could also be used to discriminate the different types of damage occurring in reinforced concrete (RC) beam and real structure. In this research was monitored by using Acoustic Emission testing and it have several analysis such as RA-value, b-value, intensity signal analysis and historical index. To determine the acoustic emission signals for concrete structures and cracking identification this research using b-value analysis. b-value signals analysis contain useful information about damage mechanisms. A high b-value arises due to a large number of small AE hits, it representing new crack formation and slow crack growth, whereas a low b-value indicates faster or unstable crack growth accompanied by relatively high amplitude AE in large number. Reinforced concrete beams measuring of size 150 mm 250 mm 1500 mm were used during the acoustic emission test. A four-point load test was carried out on specimens until cracking occurred. The signals generated from the equipment were used for the analysis process, and the values are compared to define and summarise type of cracking and cracking processes.
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institution Universiti Tun Hussein Onn Malaysia
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language English
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publishDate 2020
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spelling uthm-18472021-10-27T07:08:45Z http://eprints.uthm.edu.my/1847/ Identifying the Crack Nature Using b-Value Acoustic Emission Signal Analysis Saiful Bahari, Miera Shahidan, Shahiron Shukri, Mohammed Mohd Zuki, Sharifah Salwa TA401-492 Materials of engineering and construction. Mechanics of materials Concrete is an important constituent of structures. The strength performance of the concrete decrease due to several factors. Concrete suffers from deterioration at a later stage. Early and constant identification of concrete deterioration is necessary. Nowadays, non-destructive testing (NDT) is widely used especially on continuous real-time monitoring system with minimum labor involvement. It could also be used to discriminate the different types of damage occurring in reinforced concrete (RC) beam and real structure. In this research was monitored by using Acoustic Emission testing and it have several analysis such as RA-value, b-value, intensity signal analysis and historical index. To determine the acoustic emission signals for concrete structures and cracking identification this research using b-value analysis. b-value signals analysis contain useful information about damage mechanisms. A high b-value arises due to a large number of small AE hits, it representing new crack formation and slow crack growth, whereas a low b-value indicates faster or unstable crack growth accompanied by relatively high amplitude AE in large number. Reinforced concrete beams measuring of size 150 mm 250 mm 1500 mm were used during the acoustic emission test. A four-point load test was carried out on specimens until cracking occurred. The signals generated from the equipment were used for the analysis process, and the values are compared to define and summarise type of cracking and cracking processes. Springer Nature Mohamed Nazri, Fadzli 2020 Book Section PeerReviewed text en http://eprints.uthm.edu.my/1847/1/Identifying%20the%20Crack%20Nature.pdf Saiful Bahari, Miera and Shahidan, Shahiron and Shukri, Mohammed and Mohd Zuki, Sharifah Salwa (2020) Identifying the Crack Nature Using b-Value Acoustic Emission Signal Analysis. In: Proceedings of AICCE'19 Transforming the Nation for a Sustainable Tomorrow. Springer Nature, pp. 1065-1076. ISBN 978-3-030-32816-0
spellingShingle TA401-492 Materials of engineering and construction. Mechanics of materials
Saiful Bahari, Miera
Shahidan, Shahiron
Shukri, Mohammed
Mohd Zuki, Sharifah Salwa
Identifying the Crack Nature Using b-Value Acoustic Emission Signal Analysis
title Identifying the Crack Nature Using b-Value Acoustic Emission Signal Analysis
title_full Identifying the Crack Nature Using b-Value Acoustic Emission Signal Analysis
title_fullStr Identifying the Crack Nature Using b-Value Acoustic Emission Signal Analysis
title_full_unstemmed Identifying the Crack Nature Using b-Value Acoustic Emission Signal Analysis
title_short Identifying the Crack Nature Using b-Value Acoustic Emission Signal Analysis
title_sort identifying the crack nature using b-value acoustic emission signal analysis
topic TA401-492 Materials of engineering and construction. Mechanics of materials
url http://eprints.uthm.edu.my/1847/
http://eprints.uthm.edu.my/1847/1/Identifying%20the%20Crack%20Nature.pdf