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Updated: Jul 27, 2025

Crack Monitoring in Resonance Fatigue Testing of Welded Specimens Using Digital Image Correlation

Crack Monitoring in Resonance Fatigue Testing of Welded Specimens Using Digital Image Correlation

Published on: September 29, 2019

Guided Wave Ultrasonic Testing for Crack Detection in Polyethylene Pipes: Laboratory Experiments and Numerical

Jay Shah¹, Said El-Hawwat², Hao Wang²

¹Centre of Advance Infrastructure and Transportation, Rutgers-The State University of New Jersey, Piscataway, NJ 08854, USA.

Sensors (Basel, Switzerland)

|June 10, 2023

Summary

Ultrasonic Testing (UT) can now detect cracks in non-welded Polyethylene (PE) pipes by analyzing guided wave interactions. This advancement expands UT

Keywords:

crack detection finite element model plastic pipe polyethylene ultrasonic testing

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Last Updated: Jul 27, 2025

Crack Monitoring in Resonance Fatigue Testing of Welded Specimens Using Digital Image Correlation

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Ultrasonic Welding of Thermoplastic Composite Coupons for Mechanical Characterization of Welded Joints through Single Lap Shear Testing

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Ultrasonic Fatigue Testing in the Tension-Compression Mode

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Published on: March 7, 2018

Area of Science:

Materials Science
Non-Destructive Testing
Polymer Engineering

Background:

Polyethylene (PE) pipes are susceptible to crack formation, a major cause of pipeline failure.
Current guided wave-based Ultrasonic Testing (UT) primarily targets defects in welded zones of PE pipes.
The viscoelastic and semi-crystalline nature of PE complicates defect detection.

Purpose of the Study:

To investigate the feasibility of UT for detecting cracks in non-welded regions of PE pipes.
To analyze the interaction of guided ultrasonic waves with cracks of varying geometries in PE.
To optimize inspection parameters for enhanced crack detection sensitivity.

Main Methods:

Laboratory experiments using a pitch-catch UT system with piezoceramic transducers.
Analysis of transmitted wave amplitude to assess wave-crack interaction.
Frequency optimization via wave dispersion and attenuation analysis, focusing on longitudinal modes.
Validation using a finite element-based numerical model.

Main Results:

Detection of cracks is feasible, with detectability influenced by crack length relative to wavelength.
Shorter cracks require greater depths for detection compared to longer cracks.
Crack orientation presents a potential limitation for the proposed UT technique.
Numerical modeling corroborated experimental findings.

Conclusions:

Ultrasonic Testing shows significant potential for detecting cracks in non-welded PE pipes.
Optimized guided wave modes and analysis of wave-crack interaction are key to successful detection.
Further research into crack orientation effects is warranted for comprehensive pipeline monitoring.