| Autor: |
Thomas, Ruth, Liaptsis, Dimosthenis, Drinkwater, Bruce W. |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2005, Vol. 760 Issue 1, p1945-1951, 7p |
| Abstrakt: |
This paper describes an investigation into the combined effects of crack face roughness and closure on ultrasonic detectability. A contact model has been used to estimate the size and shape of scatterers (voids) at the interface of these rough surfaces. Finite element analysis has been used to determine the response to excitation with a longitudinal ultrasonic pulse over a wide range of frequencies for different sizes, distributions and shapes of scatterers. Comparisons between the finite element predictions and experimental results have shown good agreement. © 2005 American Institute of Physics [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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