A novel technique for acoustic emission monitoring in civil structures with global fiber optic sensors
نویسندگان
چکیده
منابع مشابه
Novel Fiber-Optic Ring Acoustic Emission Sensor
Acoustic emission technology has been applied to many fields for many years. However, the conventional piezoelectric acoustic emission sensors cannot be used in extreme environments, such as those with heavy electromagnetic interference, high pressure, or strong corrosion. In this paper, a novel fiber-optic ring acoustic emission sensor is proposed. The sensor exhibits high sensitivity, anti-el...
متن کاملFlexural monitoring of carbon fiber/epoxy composite by acoustic emission
Carbon / epoxy composite is one of the most useful polymer matrix composites that has special properties such as high strength-to-weight ratio, high hardness, high corrosion resistance, Resistance to nuclear radiation has high consumption in different industries such as aerospace industry. Therefor monitoring of loading of this type of composite is important. In order to determine failure mecha...
متن کاملEnhanced Pipeline Monitoring with Fiber Optic Sensors
Pipelines are efficient, highly reliable and safe means of transportation. However, although the number of leaks could be reduced since the early 70’s of the last century due to improved design and maintenance procedures as well as improved materials, leaks still appear. Most of these are originated by external causes such as digging excavators or slope movements despite intensive pipeline righ...
متن کاملLong Gage Fiber Optic Bragg Grating Strain Sensors to Monitor Civil Structures
Fiber optic Bragg gratings packaged in long gage configurations are being used to measure static and dynamic macro-strains in structures and structural models to monitor structural health and detect and identify macrodamage incurred from a seismic event. These long gage sensors are being used to experimentally verify analytical models of small-scale structural models in their preand post-damage...
متن کاملMonitoring of Temperature Fatigue Failure Mechanism for Polyvinyl Alcohol Fiber Concrete Using Acoustic Emission Sensors
The applicability of acoustic emission (AE) techniques to monitor the mechanism of evolution of polyvinyl alcohol (PVA) fiber concrete damage under temperature fatigue loading is investigated. Using the temperature fatigue test, real-time AE monitoring data of PVA fiber concrete is achieved. Based on the AE signal characteristics of the whole test process and comparison of AE signals of PVA fib...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Smart Materials and Structures
سال: 2014
ISSN: 0964-1726,1361-665X
DOI: 10.1088/0964-1726/23/6/065022