Acta Photonica Sinica, Volume. 52, Issue 2, 0212002(2023)
Defect Detection Method for R-zone of Ribbed Components Using Distributed Laser Ultrasonics
Figures & Tables(12)
Fig. 2. The sonic diagram of laser ultrasonic finite element simulation
Fig. 6. The time domain waveform of receiving point for crack defect
Fig. 7. The time domain waveform of receiving point for blowhole defect
Table 1. Material parameters of ribbed component
View tableView in ArticleTable 1. Material parameters of ribbed component
Material properties Constant pressure heat capacity/
（J·kg-1·K-1）
Density/
（kg·m-3）
Thermal conductivity/
（W·m-1·K-1）
Elastic modulus/Gpa Poisson ratio Value 896 2 850 154 68 0.34
Table 2. Wave arrival time for each mode
View tableView in ArticleTable 2. Wave arrival time for each mode
Measurement point Crack Blowhole tRR/µs tRS1/µs tRS2/µs tRL/µs tSCS/µs 1 7.90 8.72 7.81 7.16 8.52 2 7.94 8.67 7.83 7.19 8.58 3 7.92 8.71 7.84 7.20 8.60
Table 3. Defect location and size
View tableView in ArticleTable 3. Defect location and size
Parameter Design value Measurement point Measure absolute error Relative error Point 1 Point 2 Point 3 43 41.90 42.40 42.14 0.85 3.2% h/mm 1.15 1.21 1.19 1.23 0.09 7.8% 43 41.02 41.28 41.42 1.76 4.1% 1.20 1.36 1.32 1.33 0.14 11.7% r1/mm 7.80 7.82 7.90 7.92 0.08 1.1%
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Lingli XIE, Xiaokai WANG, Xinghui HAN, Yan ZENG, Shutong DAI. Defect Detection Method for R-zone of Ribbed Components Using Distributed Laser Ultrasonics[J]. Acta Photonica Sinica, 2023, 52(2): 0212002
Paper Information
Category: Instrumentation, Measurement and Metrology
Received: Jul. 21, 2022
Accepted: Oct. 11, 2022
Published Online: Mar. 28, 2023
The Author Email: WANG Xiaokai (wxk0919@whut.edu.cn)
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