What is it about?
This paper aims to develop a robust and time-efficient finite-difference-time-domain scheme by introducing a wave-localized approach capable of simulating elastic waves in two dimensions through large-scale polycrystalline materials.
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Why is it important?
The proposed tool, especially with the introduction of wave-localized approach, is computationally faster and can handle large-scale grains in comparison with the commercial finite element software, especially when dealing with first arrived signals. The developed model could be employed for better imaging and sizing of defect as well as estimation of the probability of detection curves using ultrasonic array imaging in highly scattering material.
Perspectives
With the recent Material 4.0 paradigm, researchers are focused on reducing the time span from concept and commercialization, especially using innovative metal additive manufacturing processes. I hope this article reaches audience who are interested in modelling ultrasonic responses in metal additive manufactured materials.
Mr Shivaprasad S
Indian Institute of Technology Madras
Read the Original
This page is a summary of: Wave localized finite-difference-time-domain modelling of scattering of elastic waves within a polycrystalline material, The Journal of the Acoustical Society of America, December 2018, Acoustical Society of America (ASA),
DOI: 10.1121/1.5082298.
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