| Autor: |
Ohara, Yoshikazu, Shintaku, Yohei, Horinouchi, Satoshi, Yamanaka, Kazushi |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 9/4/2012, Vol. 1474 Issue 1, p183-186, 4p, 1 Color Photograph, 3 Diagrams |
| Abstrakt: |
Closed stress corrosion cracks (SCCs) have been generated in nuclear power plants, resulting in the underestimation and nondetection. To solve this problem, we have developed closed-crack imaging method, the subharmonic phased array for crack evaluation (SPACE), on the basis of subharmonic waves and phased array technique. Here, after verifying the SPACE in a realistic SCC specimen, we present a two-step method for forming deep closed SCC for a reasonable amount of time. The SCC closure was verified by SPACE. This significantly contributes to the improvement of nondestructive evaluation methods and training/educating of inspection engineers. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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