CIVA Simulation and Experiment Verification for Thin-Walled Small-Diameter Pipes by Using Phased Array Ultrasonic Testing

2020 ◽  
Author(s):  
Jun Si ◽  
Daoxiang Wei ◽  
Yuqing Yang ◽  
Xiaoying Tang
Keyword(s):  
Phased Array ◽  
Small Diameter ◽  
Radiographic Testing ◽  
Diameter Pipe ◽  
Array Probe ◽  
Experiment Verification ◽  
Simulation And Experiment ◽  
Detection Capabilities ◽  
Thin Walled ◽  
Defect Detectability

Abstract Regular inspection is important to verify the integrity of in-service pipeline in the petrochemical industry. Early detection of flaws is therefore essential to ensure the continued safe operation of pipeline. In generally, Conventional ultrasonic for thin-walled small-diameter pipes has limitations due to regulation requirements, efficiencies, lack of permanent results and repeatability. In many cases, the preferred method of inspection is radiographic testing, however there are many obvious shortcomings for radiographic detection. The aim of this work was to propose appropriate phased array ultrasonic scan plans that were able to achieve the following: reduce the inspection times, improve defect detectability and sizing, and reduce human intervention, which will reduce workforce radiation uptake. Ultrasonic simulation using CIVA and experimental verification for thin-walled small-diameter pipe with flaws that were carried out to determine the most appropriate phased array probe and its detection capabilities in this paper.

Development of Ultrasonic Phased Array Probe for SAW Seam Inspection of UOE Pipe

2007 ◽  
Author(s):  
Masaki Yamano ◽  
Hiroyuki Okubo ◽  
Takumi Horikiri ◽  
Makoto Nagase
Keyword(s):  
Phased Array ◽  
Inspection System ◽  
Line Pipe ◽  
Array Probe ◽  
Ultrasonic Phased Array ◽  
Detection Capabilities ◽  
Girth Welds ◽  
Welded Seam ◽  
Submerged Arc ◽  
Pipe Mill

The requirements of Ultrasonic Testing, such as DNV, ISO specification etc., for longitudinal submerged arc weld (SAW) seam of UOE pipe become severe to the offshore steel line-pipe with high grade and heavy wall thickness. In order to satisfy the requirements, testing method with multi-probe arrangement have been widely applied in the pipe manufacture. Recently, the phased array technique has been applied for inspection of girth welds of pipeline and longitudinal ERW (electric resistance welded) seam instead of multi-probe method. But the inspection system with conventional phased array probe has many difficulty to apply for inspection longitudinal SAW seam of UOE pipe, because of defect detection capabilities, array elements arrangement, and so on. The authors have developed an applicable ultrasonic phased array probe to satisfy the severe requirements for longitudinal SAW seam of UOE pipe. This paper presents the results of our original designed array probe, which has been composed of 32-transducer elements mounted on cylindrical-shaped plastics, and also compares the inspection results to those obtained on the conventional multi-probe and our developed array probe in the UOE pipe mill.

Application of Flexible Ultrasonic Phased Array Technique on Detection of Fillet Welds in Small-Diameter Pipe Holder

2017 ◽  
Author(s):  
Weican Guo ◽  
Cunjian Miao ◽  
Xingji Du ◽  
Min Wang ◽  
Junfang Xia
Keyword(s):  
Nondestructive Testing ◽  
Ultrasonic Testing ◽  
Phased Array ◽  
Coupling Effect ◽  
Ultrasonic Inspection ◽  
Technical Problem ◽  
Small Diameter ◽  
Pressure Vessels ◽  
Fillet Welds ◽  
Diameter Pipe

Fillet welds in small-diameter pipe socket of pressure vessels always have complicated structures and groove types, which make it easy to produce porosity, lack of fusion, incomplete penetration and other flaws during welding. Therefore, nondestructive testing is a significant and meaningful approach to ensure the quality of welding for pressure vessels’ safety. Ultrasonic testing is the main method for nondestructive testing of pipe fillet welds. However, it is difficult to distinguish between the interference wave and the flaw echo, or to recognize the defect signal, while utilizing conventional ultrasonic testing technology. Additionally, the coupling effect is bad for traditional rigid probe on the concave surface when the probe is inserted into the small-diameter pipe to do the inner scanning. To obtain a good coupling effect, flexible phased array technology was put forward, with a bendable probe made from flexible materials. The probe could be bent and inserted into the inner pipe for longitudinal wave scanning, giving a good matching with the inner wall and replacing the traditional rigid probe. Besides, it is more convenient to conduct the ultrasonic testing, and the focal law could be changed easily according to the curve shape of the inner pipe, without replacing the probe. Thus, scanning and dynamic focusing in multiple angles and directions can be carried out, and the position, distribution and size of the flaws could be displayed intuitively combined with real-time imaging technology. This technology is able to obtain better coupling and detecting effects and solve the technical problem for concave ultrasonic inspection of fillet welds.

scholarly journals Phased array probe for the inspection of large steel forgings

2021 ◽  
Vol 8 (1) ◽  
pp. 1929040
Author(s):  
Frederic Dupont-Marillia ◽  
Mohammad Jahazi ◽  
Pierre Belanger
Keyword(s):  
Phased Array ◽  
Large Steel ◽  
Array Probe

scholarly journals Design Considerations for the Use of Ultrasonic Phased Array Probes in Weld Inspection

2000 ◽  
Author(s):  
Paul A. Meyer
Keyword(s):  
Ultrasonic Testing ◽  
Phased Array ◽  
Design Considerations ◽  
Array Probe ◽  
Ultrasonic Phased Array ◽  
Weld Inspection ◽  
Service Inspection

Ultrasonic testing of metal welds has been in use for many years. Scanning methods using both contact and immersion methods are often used at the time of manufacture and also during periodic in-service inspection programs. But because of a variety of component configurations and potential flaw geometries it is often necessary to perform several inspections, each with a different probe configuration to assure adequate defect delegability. It is possible that a properly designed phased array probe can perform several different inspections without changing hardware thereby reducing inspection times. This presentation reviews the design and operation of ultrasonic phased array transducers and the necessary features to achieve the desired performance. Situations in which these probes have already been implemented effectively are also discussed.

Longitudinal scan with phased-array probe

ASVIDE ◽  
2018 ◽  
Vol 5 ◽  
pp. 854-854
Author(s):  
Bélaïd Bouhemad ◽  
Ophélie Dransart-Rayé ◽  
Francesco Mojoli ◽  
Silvia Mongodi
Keyword(s):  
Phased Array ◽  
Array Probe
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