Plastic optical fibre sensor for structural health monitoring

2005 ◽  
Author(s):  
Kevin S. C. Kuang ◽  
Ser Tong Quek ◽  
Mohamed Maalej
Keyword(s):  
Structural Health Monitoring ◽  
Optical Fibre ◽  
Health Monitoring ◽  
Structural Health ◽  
Optical Fibre Sensor ◽  
Fibre Sensor

Using distributed optical fibre sensor to enhance structural health monitoring of a pipeline subjected to hydraulic transient excitation

2017 ◽  
Vol 17 (2) ◽  
pp. 298-312 ◽  
Author(s):  
Leslie Wong ◽  
Wing Kong Chiu ◽  
Jayantha Kodikara
Keyword(s):  
Structural Health Monitoring ◽  
Optical Fibre ◽  
Health Monitoring ◽  
Water Hammer ◽  
Operating Conditions ◽  
Pipeline System ◽  
Material Loss ◽  
Structural Health ◽  
Optical Fibre Sensor ◽  
Fibre Sensor

Distributed optical fibre sensors have been applied in monitoring the structural health of water pipelines over the past decades. Most of these studies show that distributed optical fibre sensor is quite effective for static and quasi-static measurements and can be used for monitoring the condition of a pipeline. It is well known that pressure transients (water hammer) can occur in any pressurised pipeline system due to changes in the operating conditions. This article shows the ability of distributed optical fibre sensor to exploit these transient hydraulic pressures along the pipeline for assessing its condition. In this regard, this article aims to demonstrate the concept of utilising this natural stimulus to enhance the pipeline structural health monitoring with the distributed sensing. A total of three experimental case studies (multiple anomalies, material loss and leakage) along plastic pipes will then be reported using a water hammer as a transient excitation for the structural health monitoring applications using distributed optical fibre sensor. The results will show that the presence of a localised damage/anomaly monitored by the distributed optical fibre sensor is accentuated by the dynamic response of the pipe when subjected to water hammer.

scholarly journals Optimisation of optical fibre using micro-braiding for structural health monitoring

2018 ◽  
Vol 30 (2) ◽  
pp. 171-185 ◽  
Author(s):  
Olubukola Rufai ◽  
Mayank Gautam ◽  
Prasad Potluri ◽  
Matthieu Gresil
Keyword(s):  
Structural Health Monitoring ◽  
Optical Fibre ◽  
Health Monitoring ◽  
Mechanical Performance ◽  
Tensile Tests ◽  
Uniaxial Tensile ◽  
Optical Fibres ◽  
Structural Health ◽  
Three Point Bend Test ◽  
Point Bend

Structural health monitoring is a fast growing area used to assess the state of various structures such as aircraft, building, bridge, wind turbine, pipe, automobile through appropriate data processing and interpretation. This article presents a novel technique of optimising the conventional optical fibres used for structural health monitoring, in order to improve their mechanical properties, and handling during the manufacturing process by micro-braiding the optical fibres. This study investigates and compares the tensile properties of the both micro-braided optical fibre and conventional optical fibres through uniaxial tensile tests. Experimental results show 85% improvement in strain at failure for the micro-braided optical fibre when compared to the optical fibres. Moreover, interfacial shear strength comparison, of the braiding yarn, between optical fibres and micro-braided optical fibre (carried out through micro-bond test) has also been conducted. In addition, the effect of embedding both micro-braided and conventional optical fibre in composite was also investigated by three-point bend test. Overall, the mechanical performance of the composite was not affected by the presence of micro-braided optical fibre. This article will also discuss the process and the advantage of micro-braided optical fibre for structural health monitoring.

The possibility of using a plastic optical fibre as a sensing element in civil structural health monitoring

2013 ◽  
Vol T157 ◽  
pp. 014031 ◽  
Author(s):  
Dragan Z Stupar ◽  
Jovan S Bajić ◽  
Bojan M Dakić ◽  
Miloš P Slankamenac ◽  
Miloš B Živanov
Keyword(s):  
Structural Health Monitoring ◽  
Optical Fibre ◽  
Health Monitoring ◽  
Sensing Element ◽  
Structural Health
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