Analysis methods of Acoustic Emission signal for monitoring of reinforced concrete structure: A review

2011 ◽  
Author(s):  
Shahiron Shahidan ◽  
Noorshuhada Md Nor ◽  
Norazura Muhamad Bunnori
Keyword(s):  
Acoustic Emission ◽  
Reinforced Concrete ◽  
Acoustic Emission Signal ◽  
Concrete Structure ◽  
Reinforced Concrete Structure ◽  
Emission Signal ◽  
Analysis Methods

Health Index Evaluation on Acoustic Emission Signal for Concrete Structure by Intensity Analysis Method

2011 ◽  
Vol 403-408 ◽  
pp. 3729-3733 ◽  
Author(s):  
Shahidan Shahiron ◽  
Norazura Muhamad Bunnori ◽  
Md Noor Noorsuhada ◽  
Siti Ramziah Basri
Keyword(s):  
Acoustic Emission ◽  
Acoustic Emission Signal ◽  
Concrete Structure ◽  
Concrete Structures ◽  
Signal Strength ◽  
Small Scale ◽  
Intensity Analysis ◽  
Reinforced Concrete Structure ◽  
Emission Signal ◽  
Ae Signal

Concrete structures have been facing several types of damage mechanisms during their lifetime. Mostly, the types are commonly defects in concretes structures are crack formations. Therefore, evaluation methods such as acoustic emission (AE) are required for assessing the deterioration on concrete structures. This paper gives a brief on the evaluations of the acoustic emission signal strength to the health monitoring of reinforced concrete structure beam. Small scale size beam have been used for this investigation and the AE signal processing are the main principal data in this work for assessing by using the statistical quantitative technique, which is known as intensity analysis (IA).This type of technique is able to quantify and evaluate the damage severity on concrete structures. Eventually, by using the AE signal strength data, the results indicates are greater instruments in determining the damage mechanism level on concretes structure.

Acoustic emission monitoring of a reinforced concrete structure by applying new fiber-optic sensors

2005 ◽  
Vol 14 (3) ◽  
pp. S52-S59 ◽  
Author(s):  
Kazuro Kageyama ◽  
Hideaki Murayama ◽  
Isamu Ohsawa ◽  
Makoto Kanai ◽  
Keiichi Nagata ◽  
...  
Keyword(s):  
Acoustic Emission ◽  
Reinforced Concrete ◽  
Concrete Structure ◽  
Fiber Optic ◽  
Fiber Optic Sensors ◽  
Reinforced Concrete Structure ◽  
Acoustic Emission Monitoring ◽  
Emission Monitoring

scholarly journals Fracture Formation Evaluation of Reinforced Concrete Structure Using Acoustic Emission Technique

2013 ◽  
Vol 2013 ◽  
pp. 1-7
Author(s):  
Alireza Panjsetooni ◽  
Norazura Muhamad Bunnori ◽  
Amir Hossein Vakili ◽  
Zohreh Shirkhani ◽  
Zeinab Shirkhani
Keyword(s):  
Acoustic Emission ◽  
Reinforced Concrete ◽  
Concrete Structure ◽  
Structural Engineering ◽  
Load Ratio ◽  
Ratio Method ◽  
Reinforced Concrete Structure ◽  
Remaining Service Life ◽  
Fracture Formation ◽  
Viable Method

Acoustic emission (AE) is an important nondestructive evaluation (NDE) technique used in the field of structural engineering for both case local and global monitoring. In this study AE technique with a new approach was employed to investigate the process of fracture formation in reinforced concrete structure. A number of reinforced concrete (RC) one story frames were tested under loading cycle and were simultaneously monitored using AE. The AE test data was analyzed using the relaxation ratio and calm and load ratio method. Also, the relaxation ratio was dominated with approaching load to 58% of the ultimate load. In addition three levels of damage using calm and load ratio were distinguished. The trend of relaxation ratio and calm and load ratio method during loading and unloading showed that these methods are strongly sensitive with cracks growth in RC frame specimens and were able to indicate the levels of damage. Also, results showed that AE can be considered as a viable method to predict the remaining service life of reinforced concrete. In addition, with respect to the results obtained from relaxation ratio and, load and calm ratio indicated, a new chart is proposed.

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