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Rail Crack Monitoring Using Acoustic Emission Technique

Part of the Springer Theses Book Series

DOI: 10.1007/978-981-10-8348-8

ISBN: 978-981-10-8347-1

Publisher: Springer Singapore - Springer Journals

Jun 24, 2018

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Chapter 1Introduction

Li, Dan

Pages: 1 –6

[In order to realize a safe and smooth operation of the railway system, this thesis focuses on the rail crack monitoring using AE technique. This chapter describes the rationale and motivation behind this thesis, listing the research objectives, and the new contributions made to existing body of...
LitStream

Chapter 2Literature Review

Li, Dan

Pages: 7 –28

[This chapter reviews literature relevant to rail crack monitoring, which includes an overview of common defects in rail track, a summary of current rail condition monitoring techniques, an introduction of AE technique and its potential in rail crack monitoring, and discussions of the way forward.]
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Chapter 3Propagation Features and Source Location

Li, Dan

Pages: 29 –63

[As highlighted in the previous chapter, research on rail crack monitoring using AE technique to date is limited to mainly laboratory studies, such as fatigue tests and small-scale test rigs. Little attention has been paid to the propagation features and source location of crack-induced AE waves...
LitStream

Chapter 4Sizing of Fatigue Cracks

Li, Dan

Pages: 65 –91

[AE technique has been widely applied to detect and locate fatigue cracks in metallic structures. However, it is still a challenging task to accurately quantify the size of a fatigue crack using AE technique (Gagar et al., Smart Mater Struct 23(10):105033, 2014). The prospects of AE technique in...
LitStream

Chapter 5Field Monitoring of Rail Cracks

Li, Dan

Pages: 93 –132

[Following encouraging results from the PLB test and fatigue tests performed under controlled conditions, the study was taken forward by deploying AE technique to monitor cracks in rail track in the field. Here, tests were carried out on actual rail tracks to acquire AE signals in the presence of...
LitStream

Chapter 6Conclusions and Future Work

Li, Dan

Pages: 133 –136

[With the aim of realizing a safe and smooth operation of the railway system, this thesis focuses on the rail crack monitoring using AE technique. The study begins with controlled laboratory and field experimental work where PLB-simulated AE sources were used to simulate cracks in rail track and...

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