Non-Destructive Test of the Steel Bar by Using Piezoceramics Sheets

2013 ◽  
Vol 718-720 ◽  
pp. 692-697 ◽  
Author(s):  
Zhu Peng Zheng ◽  
Ying Lei ◽  
Xue Peng Cui ◽  
Song Yu
Keyword(s):  
Guided Waves ◽  
Piezoelectric Ceramics ◽  
Ultrasonic Guided Waves ◽  
Destructive Test ◽  
Steel Bar ◽  
Non Destructive

Piezoelectric ceramics sheets are used to excite and receive ultrasonic guided waves in a steel bar. The multi-modes and disperse characteristics of guided waves within that are investigated theoretically and experimentally. The results show that ultrasonic guided waves can be generated and received by piezoelectric ceramics sheets which can be used to measure the length of the steel bar and detect the defection in it.

scholarly journals Non-Destructive Inspection of Impact Damage in Composite Aircraft Panels by Ultrasonic Guided Waves and Statistical Processing

Materials ◽  
2017 ◽  
Vol 10 (6) ◽  
pp. 616 ◽  
Author(s):  
Margherita Capriotti ◽  
Hyungsuk E. Kim ◽  
Francesco Lanza di Scalea ◽  
Hyonny Kim
Keyword(s):  
Guided Waves ◽  
Impact Damage ◽  
Statistical Processing ◽  
Ultrasonic Guided Waves ◽  
Non Destructive ◽  
Aircraft Panels

scholarly journals Application of ultrasonic guided waves for non-destructive testing of large and complex geometry engineering structures

2017 ◽  
Vol 14 ◽  
pp. 87-90 ◽  
Author(s):  
Renaldas Raišutis ◽  
Rymantas Kažys ◽  
Liudas Mažeika ◽  
Egidijus Žukauskas ◽  
Reimondas Šliteris ◽  
...  
Keyword(s):  
Guided Waves ◽  
Complex Geometry ◽  
Ultrasonic Guided Waves ◽  
Non Destructive Testing ◽  
Destructive Testing ◽  
Engineering Structures ◽  
Non Destructive

scholarly journals Nondestructive Inspection of Corrosion and Delamination at the Concrete-Steel Reinforcement Interface

2002 ◽  
Author(s):  
Tri Miller ◽  
Christopher J. Hauser ◽  
Tribikram Kundu
Keyword(s):  
Guided Waves ◽  
Guided Wave ◽  
Ultrasonic Guided Waves ◽  
Reinforcing Steel ◽  
Electromagnetic Acoustic Transducer ◽  
Long Distance ◽  
Steel Bar ◽  
Acoustic Transducer ◽  
Steel Bars ◽  
Aging Infrastructure

This paper explores the feasibility of detecting and quantifying corrosion and delamination at the interface between reinforcing steel bar and concrete using ultrasonic guided waves. The problem of corrosion and delamination of the reinforcing steel in the aging infrastructure has increased significantly in the last three decades and is likely to keep on increasing. Ultrasonic cylindrical guided waves that can propagate a long distance along the reinforcing steel bar are found to be sensitive to the interface conditions between steel bar and concrete. Ultrasonic transducers are used to launch and detect cylindrical guided waves along the steel bar. The traditional ultrasonic testing methods, for instance the pulse-echo method, where reflection, transmission, and scattering of longitudinal waves are used for detecting large voids in concrete, are not very efficient for detecting corrosion and delamination at the interface between concrete and steel bar. For this study four sets of specimens were prepared. They are rebars and plain steel bars with corrosion and physical separation. Transducers used during the experiment are the Electromagnetic Acoustic Transducer (EMAT) and the Piezoelectric Transducer (PZT). The experiment suggests that the guided wave inspection technique is feasible for the health monitoring of reinforced concrete structures. It also reveals that the ultrasonic guided waves are sensitive to the type of steel used and to the rib patterns on the reformed steel bars.

Monitoring and Imaging of Bolted Steel Plate Joints Using Ultrasonic Guided Waves

2020 ◽  
Vol 4 (1) ◽  
Author(s):  
Jay Kumar Shah ◽  
Abhijit Mukherjee
Keyword(s):  
Piezoelectric Ceramic ◽  
Guided Waves ◽  
Steel Plate ◽  
Steel Structures ◽  
Ultrasonic Waves ◽  
Bolted Joints ◽  
Ultrasonic Guided Waves ◽  
Automated Method ◽  
Non Destructive ◽  
Joint Integrity

Abstract Steel structures with bolted joints are easily dismantled and repurposed. However, maintaining joint integrity is a challenge. This paper reports a non-destructive methodology to monitor steel bolted joints. Piezoelectric ceramic patches have been surface bonded in the joint for transmission and reception of guided ultrasonic waves. Both single and multiple bolted joints have been investigated. It has been demonstrated that the variation in acoustic impedance due at the bolt interface can be discerned and calibrated with bolt torque level. The recorded reflections from interfaces are used as inputs for a newly developed imaging algorithm. The proposed method has the potential to be a reference-free and fully automated method.

Study on Ultrasonic Guided Waves in Fluid-Filled Pipes Surrounded by Water

2006 ◽  
Author(s):  
Shijiu Jin ◽  
Liying Sun ◽  
Guichun Liu ◽  
Yibo Li ◽  
Hong Zhang
Keyword(s):  
Guided Waves ◽  
Guided Wave ◽  
Ultrasonic Waves ◽  
Ultrasonic Guided Waves ◽  
Fluid Loading ◽  
Inspection Method ◽  
Ultrasonic Guided Wave ◽  
Oil Company ◽  
Non Destructive ◽  
Good Agreement

A new non-destructive pipe inspection method, ultrasonic guided wave method as well as the comparison between ultrasonics and guided waves is introduced. An investigation of the guided ultrasonic waves traveling along pipes with fluid loading on the inside and outside of the pipe is described. The effect of inner and outer media has been researched by considering a steel pipe with air and water inside and outside the experimental pipe. Site experiment was carried out on a heating pipe in the resident area of Bohai Oil Company, China. A typical cylindrical guided wave, longitudinal guided wave was used to examine pipes with artificial defects and its propagation characteristics along the pipe were studied. Good agreement has been obtained between the experiments and predictions for pipes with different loading on the pipe.

Application of ultrasonic guided waves for non-destructive testing of defective CFRP rods with multiple delaminations

2010 ◽  
Vol 43 (5) ◽  
pp. 416-424 ◽  
Author(s):  
Renaldas Raišutis ◽  
Rymantas Kažys ◽  
Egidijus Žukauskas ◽  
Liudas Mažeika ◽  
Alfonsas Vladišauskas
Keyword(s):  
Guided Waves ◽  
Ultrasonic Guided Waves ◽  
Non Destructive Testing ◽  
Destructive Testing ◽  
Non Destructive

scholarly journals Research of non-destructive testing for aluminium sheaths of HV cables using ultrasonic-guided waves

2019 ◽  
Vol 2019 (16) ◽  
pp. 2078-2083
Author(s):  
Cao Junping ◽  
Jiang Hang ◽  
Wang Shaohua ◽  
Yang Yong ◽  
Zhou Luyao ◽  
...  
Keyword(s):  
Guided Waves ◽  
Ultrasonic Guided Waves ◽  
Non Destructive Testing ◽  
Destructive Testing ◽  
Non Destructive
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