| Autor: |
Chenxin Zhang, Xiongbing Li, Yongfeng Song, Xiaoqin Han |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2016, Vol. 1706 Issue 1, p1-8, 8p, 1 Black and White Photograph, 4 Diagrams, 2 Charts, 3 Graphs |
| Abstrakt: |
The ultrasonic diffraction attenuation in curved component was derived by the acoustic elasticity function and pressure field simulated based on Multi-Gaussian beam theory. The diffraction correction was introduced into the frequency-domain attenuation spectrum experimentally measured to control the systematic error. An experimental study on stainless steel blocks with different grain sizes and surface curvatures has been performed. The result shows that, the variation coefficient of the attenuation value for the curved blocks reduced by 31.6% after correcting the diffraction coefficient. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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