期刊
JOURNAL OF APPLIED PHYSICS
卷 113, 期 16, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4802685
关键词
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资金
- China Scholarship Council (CSC) [2009628017]
- Central Research Institute of Electric Power Industry of Japan
A phased array laser ultrasound generation system by using fiber optic delivery and a custom-designed focusing objective lens has been developed for crack inspection. The enhancement of crack tip diffraction by using phased array laser ultrasound is simulated with finite element method and validated by experiment. A non-contact and non-destructive measurement of inner-surface cracks by time-of-flight diffraction method using fiber-phased array laser ultrasound generation and electromagnetic acoustic transducer detection has been studied. (C) 2013 AIP Publishing LLC
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