Analysis of failure mechanisms in fatigue test of reinforced concrete beam utilizing acoustic emission

The acoustic emission technique is used for monitoring the fatigue failure mechanisms in reinforced concrete beam under three point bending. The analysis was conducted by using the bathtub curve method plotted from acoustic emission data. In this study, the fatigue behavior was divided into thre...

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Main Authors: Muhamad Bunnori, Norazura, Md Nor, Noorsuhada, Goh, Kenny Teck Jiun, Abdul Kudus, Sakhiah
Format: Article
Language:English
Published: International Society of Multiphysics 2014
Subjects:
Online Access:http://eprints.usm.my/38318/
http://eprints.usm.my/38318/1/Analysis_of_failure_mechanisms_in_fatigue_test_of_reinforced_concrete_beam_utilizing_acoustic_emission.pdf
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author Muhamad Bunnori, Norazura
Md Nor, Noorsuhada
Goh, Kenny Teck Jiun
Abdul Kudus, Sakhiah
author_facet Muhamad Bunnori, Norazura
Md Nor, Noorsuhada
Goh, Kenny Teck Jiun
Abdul Kudus, Sakhiah
author_sort Muhamad Bunnori, Norazura
building USM Institutional Repository
collection Online Access
description The acoustic emission technique is used for monitoring the fatigue failure mechanisms in reinforced concrete beam under three point bending. The analysis was conducted by using the bathtub curve method plotted from acoustic emission data. In this study, the fatigue behavior was divided into three stages. The first stage is involved with the decreasing failure rate, known as early life failure or burn-in phase, the second stage is characterized by constant failure rate and the third stage is called the burnout phase which is an increase of failure rate. The three parameters used in analyzing is the fatigue behavior for each stage of failure which are severity, signal strength and the cumulative signal strength. From severity analysis, the range of each stage of failure had been determined while from signal strength analysis, the initiation of distribution of crack had been detected through the fluctuation of signal strength. Cumulative signal strength parameter provides a clearer view of the initiation and distribution of crack.
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institution Universiti Sains Malaysia
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publisher International Society of Multiphysics
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spelling usm-383182018-01-10T00:33:04Z http://eprints.usm.my/38318/ Analysis of failure mechanisms in fatigue test of reinforced concrete beam utilizing acoustic emission Muhamad Bunnori, Norazura Md Nor, Noorsuhada Goh, Kenny Teck Jiun Abdul Kudus, Sakhiah TA1-2040 Engineering (General). Civil engineering (General) The acoustic emission technique is used for monitoring the fatigue failure mechanisms in reinforced concrete beam under three point bending. The analysis was conducted by using the bathtub curve method plotted from acoustic emission data. In this study, the fatigue behavior was divided into three stages. The first stage is involved with the decreasing failure rate, known as early life failure or burn-in phase, the second stage is characterized by constant failure rate and the third stage is called the burnout phase which is an increase of failure rate. The three parameters used in analyzing is the fatigue behavior for each stage of failure which are severity, signal strength and the cumulative signal strength. From severity analysis, the range of each stage of failure had been determined while from signal strength analysis, the initiation of distribution of crack had been detected through the fluctuation of signal strength. Cumulative signal strength parameter provides a clearer view of the initiation and distribution of crack. International Society of Multiphysics 2014 Article PeerReviewed application/pdf en http://eprints.usm.my/38318/1/Analysis_of_failure_mechanisms_in_fatigue_test_of_reinforced_concrete_beam_utilizing_acoustic_emission.pdf Muhamad Bunnori, Norazura and Md Nor, Noorsuhada and Goh, Kenny Teck Jiun and Abdul Kudus, Sakhiah (2014) Analysis of failure mechanisms in fatigue test of reinforced concrete beam utilizing acoustic emission. International Journal of Multiphysics, 8 (4). pp. 349-357. ISSN 1750-9548 http://dx.doi.org/10.1260/1750-9548.8.4.349
spellingShingle TA1-2040 Engineering (General). Civil engineering (General)
Muhamad Bunnori, Norazura
Md Nor, Noorsuhada
Goh, Kenny Teck Jiun
Abdul Kudus, Sakhiah
Analysis of failure mechanisms in fatigue test of reinforced concrete beam utilizing acoustic emission
title Analysis of failure mechanisms in fatigue test of reinforced concrete beam utilizing acoustic emission
title_full Analysis of failure mechanisms in fatigue test of reinforced concrete beam utilizing acoustic emission
title_fullStr Analysis of failure mechanisms in fatigue test of reinforced concrete beam utilizing acoustic emission
title_full_unstemmed Analysis of failure mechanisms in fatigue test of reinforced concrete beam utilizing acoustic emission
title_short Analysis of failure mechanisms in fatigue test of reinforced concrete beam utilizing acoustic emission
title_sort analysis of failure mechanisms in fatigue test of reinforced concrete beam utilizing acoustic emission
topic TA1-2040 Engineering (General). Civil engineering (General)
url http://eprints.usm.my/38318/
http://eprints.usm.my/38318/
http://eprints.usm.my/38318/1/Analysis_of_failure_mechanisms_in_fatigue_test_of_reinforced_concrete_beam_utilizing_acoustic_emission.pdf