Development and Assessment of Ultrasonic Inspection System for Polyethylene Pipes

Spicer, Malcolm; Troughton, Mike; Hägglund, Fredrik

doi:10.1115/pvp2013-97098

Cited by 3 publications

(3 citation statements)

References 2 publications

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“…Since the probe's focus is "swept," even defects that are stacked can be detected, which would not be possible by conventional pulse-echo methods [33]. PAUT has shown great capabilities to detect the embedded defects in HDPE pipes and joints [34][35][36][37][38][39][40][41][42].…”

Section: Ultrasonic Testing (Ut)mentioning

confidence: 99%

Laboratory Study on Non-Destructive Evaluation of Polyethylene Liquid Storage Tanks by Thermographic and Ultrasonic Methods

2021

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High-density polyethylene (HDPE) above-ground storage tanks (AST) are used by highway agencies to store liquid deicing chemicals for the purpose of road maintenance in the winter. A sudden AST failure can cause significant economic and environmental impacts. While ASTs are routinely inspected to identify signs of aging and damage, current methods may not adequately capture all defects, particularly if they are subsurface or too small to be seen during visual inspection. Therefore, to improve the ability to identify potential durability issues with HDPE ASTs, additional non-destructive evaluation (NDE) techniques need to be considered and assessed for applicability. Specifically, this study investigates the efficiency of using infrared thermography (IRT) as a rapid method to simultaneously examine large areas of the tank exterior, which will be followed by closer inspections with conventional and phased array ultrasonic testing (UT) methods. Results show that IRT can help to detect defects that are shallow, specifically located within half of the tank’s wall thickness from the surface. UT has the ability to detect all defects at any depth. Moreover, phased array UT helps to identify stacked defects and characterize each defect more precisely than IRT.

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Section: Ultrasonic Testing (Ut)mentioning

confidence: 99%

Laboratory Study on Non-Destructive Evaluation of Polyethylene Liquid Storage Tanks by Thermographic and Ultrasonic Methods

2021

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“…Recently, the Welding Institute (TWI) from the UK applied time of flight diffraction (TOFD) ultrasonic testing technique to inspect BF joints of PE pipe (less than 400 mm in diameter) [20]. Compared with traditional ultrasound testing method, this technique achieved excellent inspecting resolution, but failed in detecting cold welding defect.…”

Section: Current Ultrasonic Inspection Techniques For Pe Pipementioning

confidence: 99%

“…Long et al [33] conducted principal component analysis and regression analysis on eight features extracted from signal wave of voids and established the relation between the features and defect information. TWI [34] developed an automatic defect recognition (ADR) software for EF weld inspection, including three main steps in the algorithm: Detection of heating wire zone, determination of wire lines, and determination of defect maps. Based on the ADR software, defect indication can be completed, but defect classification and quantification required further analysis by technicians.…”

Section: Defect Recognition and Safety Assessmentmentioning

confidence: 99%

A review of nondestructive examination technology for polyethylene pipe in nuclear power plant

et al. 2018

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Polyethylene (PE) pipe, particularly highdensity polyethylene (HDPE) pipe, has been successfully utilized to transport cooling water for both non-safety-and safety-related applications in nuclear power plant (NPP). Though ASME Code Case N755, which is the first code case related to NPP HDPE pipe, requires a thorough nondestructive examination (NDE) of HDPE joints. However, no executable regulations presently exist because of the lack of a feasible NDE technique for HDPE pipe in NPP. This work presents a review of current developments in NDE technology for both HDPE pipe in NPP with a diameter of less than 400 mm and that of a larger size. For the former category, phased array ultrasonic technique is proven effective for inspecting typical defects in HDPE pipe, and is thus used in Chinese national standards GB/T 29460 and GB/T 29461. A defectrecognition technique is developed based on pattern recognition, and a safety assessment principle is summarized from the database of destructive testing. On the other hand, recent research and practical studies reveal that in current ultrasonic-inspection technology, the absence of effective ultrasonic inspection for large size was lack of consideration of the viscoelasticity effect of PE on acoustic wave propagation in current ultrasonic inspection technology. Furthermore, main technical problems were analyzed in the paper to achieve an effective ultrasonic test method in accordance to the safety and efficiency requirements of related regulations and standards. Finally, the development trend and challenges of NDE test technology for HDPE in NPP are discussed.

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Magnetostrictive Ultrasonic Torsional Wave Detection Method for High-Density Polyethylene Pipe Weld Status

Wang,

Zhang,

Feng

et al. 2024

2024 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)

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Development and Assessment of Ultrasonic Inspection System for Polyethylene Pipes

Cited by 3 publications

References 2 publications

Laboratory Study on Non-Destructive Evaluation of Polyethylene Liquid Storage Tanks by Thermographic and Ultrasonic Methods

Laboratory Study on Non-Destructive Evaluation of Polyethylene Liquid Storage Tanks by Thermographic and Ultrasonic Methods

A review of nondestructive examination technology for polyethylene pipe in nuclear power plant

Magnetostrictive Ultrasonic Torsional Wave Detection Method for High-Density Polyethylene Pipe Weld Status

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