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Guided Wave Focusing Techniques

Back to Research Reports Elastic Follow-Up in the Context of Fracture Assessment Review of Process Simulations for Metal Additive Manufacturing Flaw Sizing Techniques Using Guided Waves Flaw Sizing Techniques Using Guided Waves Flaw Sizing Techniques Using Guided Waves Applications, Modelling and Manufacturing Processes for Perforated Composites - Literature Review A Review of High Power, In-Vacuum and Narrow Gap Laser Welding Processes for Thick Section Welding A Review of High Productivity Additive Manufacture Using a Hybrid Laser-Arc Deposition (HLAD) Process A Review of Micro Welding with Fibre and Disc Continuous-Wave Laser Sources A Review of Residual Stress Measurement Techniques Used for Components Produced Using the Selective Laser Melting Process A Review of the Machine GTAW Ambient Temperature Temper Bead Repair Technique for Nuclear Power Plant Components A Review of Weld Repairs of Mar-M247 and Similar Alloys Butt Fusion Welding Procedures and Test Methods Used for PE Pipes Duplex Stainless Steel Welding – A Review of Current Practices In-Bore Multi-Positional Laser Welding In-Process Monitoring of Arc Welding for Quality and Defect Detection Mechanical Fastening Technologies for Steel to Aluminium Joining in Automotive Manufacture Process Capability Study for Friction Stir Spot Welding (FSSW) Resistance Spot Welding with Transition Discs – A Review of Dissimilar Joining Using Transition Materials with Specific Reference to Resistance Spot Welding Surface Modification and Micro-Machining with Pulsed-Laser Sources Wire Fed Electron Beam Additive Manufacture – A State-of-the-Art Review
 

Review of Guided Wave Focusing Techniques

By Ruth Sanderson and Jane Allwright

Background

Guided ultrasonic waves are currently used commercially to screen tens of metres of pipeline for corrosion from a single test location. In recent years, improvements have been made to guided wave inspection procedures for pipes. Methods have been developed, using both finite element analysis and experimentation, to:

  • Predict the size and shape of flaws.
  • Focus the sound energy on particular regions of the pipe, giving increased sensitivity.

However, the new techniques are currently designed for simple geometries only, ie straight pipes with fixed wall thickness, and can therefore be ineffective in more complex tubular structures such as those with changes in thickness, attachments or even weld cap geometry.

A literature review has been carried out, and an understanding of the state-of-the-art and the existing knowledge has been gathered. This report reviews the relevant literature on guided wave focusing.

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