Application of ultrasonic guided waves for inspection of high density polyethylene pipe systems
| Autor: | Tat-Hean Gan, Premesh Shehan Lowe, Veena Paruchuri, Habiba Lais |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
thermoplastic pipe
Materials science Acoustics education flexible macro-fiber composite transducer 02 engineering and technology finite element analysis lcsh:Chemical technology 01 natural sciences Biochemistry Article Analytical Chemistry Nondestructive testing array design lcsh:TP1-1185 Electrical and Electronic Engineering inspection Instrumentation business.industry Attenuation 010401 analytical chemistry Ultrasonic testing industrialization Pulse duration non-destructive testing 021001 nanoscience & nanotechnology Inspection time Atomic and Molecular Physics and Optics humanities 0104 chemical sciences Visual inspection stomatognathic diseases Transducer Ultrasonic sensor ultrasonic guided waves 0210 nano-technology business |
| Zdroj: | Sensors, Vol 20, Iss 3184, p 3184 (2020) Sensors Volume 20 Issue 11 Sensors (Basel, Switzerland) |
| Popis: | The structural integrity assessment of thermoplastic pipes has become an interesting area of research due to its elevated usage in the liquid/gas transportation industry. Ultrasonic guided wave testing has gained higher attention from industry for the inspection of elongated structures due to the reduced inspection time and cost associated with conventional non-destructive testing techniques, e.g., ultrasonic testing, radiography, and visual inspection. Current research addresses the inspection of thermoplastic pipes using ultrasonic guided waves as a low cost and permanently installed structural health-monitoring tool. Laboratory and numerical investigations were conducted to study the potential of using ultrasonic guided waves to assess the structural health of thermoplastic pipe structures in order to define optimum frequency range for inspection, array design, and length of inspection. In order to achieve a better surface contact, flexible Macro-Fiber Composite transducers were used in this investigation, and the Teletest® Focus+ system was used as the pulser/receiver. Optimum frequency range of inspection was at 15&minus 25 kHz due to the level of attenuation at higher frequencies and the larger dead zone at lower frequencies due to the pulse length. A minimum of 14 transducers around the circumference of a 3 inch pipe were required to suppress higher order flexural modes at 16 kHz. According to the studied condition, 1.84 m of inspection coverage could be achieved at a single direction for pulse-echo, which could be improved by using a higher number of transducers for excitation and using pitch-catch configuration. |
| Databáze: | OpenAIRE |
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