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Acoustic Emission Study Of Fatigue Crack Growth In Rail Track Material

The fatigue crack growth behavior of longitudinal crack in rail steel was investigated using the compact tension, (CT) specimen. The fatigue crack growth rate curve, da/dN as a function of stress intensity factor range, ∆ K was plotted in order to analyze the crack growth properties of rail materia...

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Main Author: Mohd Yusof, Taib
Format: Conference or Workshop Item
Language:English
Published: 2010
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://umpir.ump.edu.my/id/eprint/1768/1/ACOUSTIC_EMISSION_STUDY_OF_FATIGUE_CRACK_GROWTH.pdf
http://umpir.ump.edu.my/id/eprint/1768/
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spelling my.ump.umpir.17682018-04-09T01:40:11Z http://umpir.ump.edu.my/id/eprint/1768/ Acoustic Emission Study Of Fatigue Crack Growth In Rail Track Material Mohd Yusof, Taib TJ Mechanical engineering and machinery The fatigue crack growth behavior of longitudinal crack in rail steel was investigated using the compact tension, (CT) specimen. The fatigue crack growth rate curve, da/dN as a function of stress intensity factor range, ∆ K was plotted in order to analyze the crack growth properties of rail material. The CT specimen was tested by means of tension-tension stresses with load ratio of 0.1 while simultaneously recording the acoustic emission, (AE) signal. The acoustic emission count rate associated with the stress intensity factor was obtained to understand acoustic emission behavior corresponding to the fatigue crack growth. The result indicates that the constant values of C and m according to Paris Law equation, da/dN = C(∆ K) m are 2.63x10-12 and 3.29, respectively. The acoustic emission count rate equation becomes dn/dN = 2.63x10- 7(∆ K) 3.51. The linear relationship between crack growth rate and AE count rate will give log(da/dN) = 0.738log(dn/dN) - 5.815. Based on these correlations it may possible to monitoring fatigue damage of short term acoustic emission monitoring 2010 Conference or Workshop Item PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/1768/1/ACOUSTIC_EMISSION_STUDY_OF_FATIGUE_CRACK_GROWTH.pdf Mohd Yusof, Taib (2010) Acoustic Emission Study Of Fatigue Crack Growth In Rail Track Material. In: National Conference in Mechanical Engineering Research and Postgraduate Studies (2nd NCMER 2010), 3-4 December 2010 , UMP Pekan, Pahang. .
institution Universiti Malaysia Pahang
building UMP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang
content_source UMP Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Mohd Yusof, Taib
Acoustic Emission Study Of Fatigue Crack Growth In Rail Track Material
description The fatigue crack growth behavior of longitudinal crack in rail steel was investigated using the compact tension, (CT) specimen. The fatigue crack growth rate curve, da/dN as a function of stress intensity factor range, ∆ K was plotted in order to analyze the crack growth properties of rail material. The CT specimen was tested by means of tension-tension stresses with load ratio of 0.1 while simultaneously recording the acoustic emission, (AE) signal. The acoustic emission count rate associated with the stress intensity factor was obtained to understand acoustic emission behavior corresponding to the fatigue crack growth. The result indicates that the constant values of C and m according to Paris Law equation, da/dN = C(∆ K) m are 2.63x10-12 and 3.29, respectively. The acoustic emission count rate equation becomes dn/dN = 2.63x10- 7(∆ K) 3.51. The linear relationship between crack growth rate and AE count rate will give log(da/dN) = 0.738log(dn/dN) - 5.815. Based on these correlations it may possible to monitoring fatigue damage of short term acoustic emission monitoring
format Conference or Workshop Item
author Mohd Yusof, Taib
author_facet Mohd Yusof, Taib
author_sort Mohd Yusof, Taib
title Acoustic Emission Study Of Fatigue Crack Growth In Rail Track Material
title_short Acoustic Emission Study Of Fatigue Crack Growth In Rail Track Material
title_full Acoustic Emission Study Of Fatigue Crack Growth In Rail Track Material
title_fullStr Acoustic Emission Study Of Fatigue Crack Growth In Rail Track Material
title_full_unstemmed Acoustic Emission Study Of Fatigue Crack Growth In Rail Track Material
title_sort acoustic emission study of fatigue crack growth in rail track material
publishDate 2010
url http://umpir.ump.edu.my/id/eprint/1768/1/ACOUSTIC_EMISSION_STUDY_OF_FATIGUE_CRACK_GROWTH.pdf
http://umpir.ump.edu.my/id/eprint/1768/
_version_ 1643664459370070016
score 13.211869

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