nonlinear parameter
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Evaluation of Thermal Damage in Pipe by Nonlinear Guided Wave
Abstract: This work investigates the evaluation of thermal damage in aluminum pipe by using nonlinear guided wave. Thermal loading was imposed on the specimens to cause thermal degradation. Flexible Polyvinylidene Fluoride (PVDF) comb transducers are used to generate and receive the ultrasonic waves. The second harmonic wave generation technique was used to check the material nonlinearity change after different heat loading. Conventional linear ultrasonic approach based on the acoustic attenuation was …
Published in Journal of Nuclear Engineering & Technology · Vol. 3, Issue 1, 2013 Read article