Three dimensional image-based simulation of ultrasonic wave propagation in polycrystalline metal using phase-field modeling

Ultrasonics
K NakahataFrank Schubert

Abstract

When modeling ultrasonic wave propagation in metals, it is important to introduce mesoscopic crystalline structures because the anisotropy of the crystal structure and the heterogeneity of grains disturb ultrasonic waves. In this paper, a three-dimensional (3D) polycrystalline structure generated by multiphase-field modeling was introduced to ultrasonic simulation for nondestructive testing. 3D finite-element simulations of ultrasonic waves were validated and compared with visualization results obtained from laser Doppler vibrometer measurements. The simulation results and measurements showed good agreement with respect to the velocity and front shape of the pressure wave, as well as multiple scattering due to grains. This paper discussed the applicability of a transversely isotropic approach to ultrasonic wave propagation in a polycrystalline metal with columnar structures.

References

Jan 2, 2003·The Journal of the Acoustical Society of America·Hirotsugu OgiMasahiko Hirao
Jul 4, 2009·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Goutam Ghoshal, Joseph A Turner

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Citations

Mar 8, 2017·Proceedings. Mathematical, Physical, and Engineering Sciences·A Van PamelM J S Lowe
Jan 3, 2019·The Journal of the Acoustical Society of America·S ShivaprasadKrishnan Balasubramaniam

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