A Model to Predict Phased Array Ultrasonic Testing Signals from a Flat-Bottomed Hole in Two Medium

Sung Jin Song; Joon Soo Park; Hak Joon Kim; Un Hak Seong; Suk Chull Kang; Young Hwan Choi

doi:10.4028/www.scientific.net/KEM.321-323.501

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The Evaluation of Material Degradation in Modified 9Cr-1Mo Steel by Electrochemical and Magnetic Property Analysis
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Evaluation of Hidden Corrosion in a Thin Plate Using a Non-Contact Guided Wave Technique
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Prediction of Ultrasonic Signals Captured from a Side-Drilled Hole Using a Rectangular Transducer
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A Model to Predict Phased Array Ultrasonic Testing Signals from a Flat-Bottomed Hole in Two Medium
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Thermo-Mechanical Fatigue of the Nickel Base Superalloy IN738LC for Gas Turbine Blades
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Non-Contact Ultrasonic Inspection Technology of Fillet Weldments Monitoring
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Fatigue Life Prediction of Heat-Aging Vulcanized Natural Rubber
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A Model to Predict Phased Array Ultrasonic Testing Signals from a Flat-Bottomed Hole in Two Medium

Abstract:

In this study, the expanded multi-Gaussian beam model is adopted to develop a model to calculate the ultrasonic beam fields radiated from an ultrasonic phased array transducer. Combining this beam model with three other components including time delays, a far-field scattering model and a system efficiency factor, we develop a complete ultrasonic measurement model for predicting the phased array ultrasonic signals that can be captured from a flat-bottom hole in a steel specimen in a pulse-echo set-up using an array transducer mounted in a solid wedge. This paper describes the complete model developed with its key ingredients.