Effect Of Foil Width In Magnetostrictive Transducer On The Excited Longitudinal Wave In Pipe

Ayuob Sultan Saif, Alnadhari (2017) Effect Of Foil Width In Magnetostrictive Transducer On The Excited Longitudinal Wave In Pipe. Project Report. UTeM, Melaka,Malaysia. (Submitted)

Text (24 Pages) Effect Of Foil Width In Magnetostrictive Transducer On The Excited Longitudinal Wave In Pipe.pdf - Submitted Version Download (2MB)

Abstract

Pipelines are one of the main parts in many industrial structures.Cracks and corrosion within the pipeline lead to huge damages.To detect these problems,guided wave testing(GWT) is used.GWT is implemented by using different transducers.One of the most frequently used is magnetostrictive (MS) transducer due to many reasons,such as ease of fabrication and mode excitation,reasonability of price and high storage of energy.However,the application of GWT using MS sensors on pipes depends on the width of sensor.This study aims to investigate the relation between width of MS sensor and wavelength by modelling an aluminum pipe.In this study,mainly four software programs have been used.Firstly,MATLAB software is used to calculate the dispersion curve and to generate a tone burst signal.Secondly,ANSYS software is used to model the pipe.Thirdly,LS-PREPOST software is used to visualize the wave propagation and to extract the time waveforms.Lastly,LABVIEW software is used to enhance the signals.An aluminum pipe of 6 mm thickness and 100 mm outer diameter has been modelled to observe the relation at different frequencies of 50 kHz,75 kHz and 100 kHz in the longitudinal excitation mode L (0, 2).

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