Live Webinar: Improved Model Estimates of Attenuation Factors for Bulk Wave Ultrasound
Webinar
This webinar addresses why standard ultrasonic attenuation formulas often fail for metals and presents revised methods to improve nondestructive evaluation accuracy and reliability across critical industries.
Credit Info
- Contact Hours: 1
- IACET CEUs: .1
- Valid for ASNT Level III recertification: Yes
Course Overview
The reliability of ultrasonic nondestructive evaluation (NDE) of metals is crucial to ensure safety in the vast majority of infrastructures, ranging from microchips to spacecrafts. The attenuation in the displacement amplitude of bulk ultrasonic waves captures useful information about the microstructures. However, the gap between expected and actual ultrasonic attenuation measurements can be alarming for NDE of common metals like nickel, iron, stainless steel, or lithium. This presentation will demonstrate the common parameters that lead to the breakdown of the well-known attenuation formulae for ultrasonic NDE of metals. Recommendations for using a revised set of formulae will be prescribed to close the gap between inspection and reality.
Upon Completion, Learners Will Be Able To:
- Appreciate the necessity for ultrasonic NDE of metals.
- Recognize the potential material parameters that can lead to erroneous inspection.
- Identify the critical frequencies beyond which the well-known attenuation formulae may break down.
- Classify the materials where errors of using the prior formulae can be mild, moderate and severe.
- Integrate the newly improved formulae into the existing inspection pipeline.
Meet the Speaker
Anubhav Ro
Anubhav Roy is a postdoctoral scholar in Aeronautics and Astronautics at Stanford University. His research focuses on elastic wave propagation in polycrystalline solids to advance nondestructive evaluation of metals. He is a 2022 ASNT Fellowship Award recipient and has earned multiple honors, including the Best Poster Award at the 2019 International Congress on Ultrasonics. Anubhav holds a Ph.D. in Engineering Science and Mechanics from Penn State and a bachelor’s degree in Construction Engineering from Jadavpur University.
Questions? Contact us at education@asnt.org