Debonding detection in scarf-repaired CFRP laminates using lamb-wave visualization by generation laser scanning method

I. Takahashi; Y. Ito; S. L. Takeda; Y. Iwahori; S. Yashiro; J. Takatsubo; N. Takeda

Debonding detection in scarf-repaired CFRP laminates using lamb-wave visualization by generation laser scanning method

I. Takahashi, Y. Ito, S. L. Takeda, Y. Iwahori, S. Yashiro, J. Takatsubo, N. Takeda

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

In this research, the health monitoring technique for the detection of impact damages on the scarf-repaired composites is established. We detect the debondings of adhesive layer by using the Lamb-waves propagating in structures. We visualized Lamb waves propagating in scarf-repaired composites by pulsed-laser scanning and observed the change in the behavior of wave propagation due to the damages. We applied this technique to the scarf-repaired specimens with artificial defects. In these results, the reflection and scattering of the elastic waves at the boundary of defects were observed. These results indicate that this visualization technique is effective for the detection of impact damages in scarf-repaired composites.

Original language	English
Title of host publication	Structural Health Monitoring 2007
Subtitle of host publication	Quantification, Validation, and Implementation - Proceedings of the 6th International Workshop on Structural Health Monitoring, IWSHM 2007
Editors	Fu-Kuo Chang
Publisher	DEStech Publications
Pages	2015-2022
Number of pages	8
ISBN (Electronic)	9781932078718
Publication status	Published - Jan 1 2007
Externally published	Yes
Event	6th International Workshop on Structural Health Monitoring: Quantification, Validation, and Implementation, IWSHM 2007 - Stanford, United States Duration: Sept 11 2007 → Sept 13 2007

Publication series

Name	Structural Health Monitoring 2007: Quantification, Validation, and Implementation - Proceedings of the 6th International Workshop on Structural Health Monitoring, IWSHM 2007
Volume	2

Other

Other	6th International Workshop on Structural Health Monitoring: Quantification, Validation, and Implementation, IWSHM 2007
Country/Territory	United States
City	Stanford
Period	9/11/07 → 9/13/07

All Science Journal Classification (ASJC) codes

Computer Science Applications
Health Information Management

Cite this

Takahashi, I., Ito, Y., Takeda, S. L., Iwahori, Y., Yashiro, S., Takatsubo, J., & Takeda, N. (2007). Debonding detection in scarf-repaired CFRP laminates using lamb-wave visualization by generation laser scanning method. In F-K. Chang (Ed.), Structural Health Monitoring 2007: Quantification, Validation, and Implementation - Proceedings of the 6th International Workshop on Structural Health Monitoring, IWSHM 2007 (pp. 2015-2022). (Structural Health Monitoring 2007: Quantification, Validation, and Implementation - Proceedings of the 6th International Workshop on Structural Health Monitoring, IWSHM 2007; Vol. 2). DEStech Publications.

Debonding detection in scarf-repaired CFRP laminates using lamb-wave visualization by generation laser scanning method. / Takahashi, I.; Ito, Y.; Takeda, S. L. et al.
Structural Health Monitoring 2007: Quantification, Validation, and Implementation - Proceedings of the 6th International Workshop on Structural Health Monitoring, IWSHM 2007. ed. / Fu-Kuo Chang. DEStech Publications, 2007. p. 2015-2022 (Structural Health Monitoring 2007: Quantification, Validation, and Implementation - Proceedings of the 6th International Workshop on Structural Health Monitoring, IWSHM 2007; Vol. 2).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Takahashi, I, Ito, Y, Takeda, SL, Iwahori, Y, Yashiro, S, Takatsubo, J & Takeda, N 2007, Debonding detection in scarf-repaired CFRP laminates using lamb-wave visualization by generation laser scanning method. in F-K Chang (ed.), Structural Health Monitoring 2007: Quantification, Validation, and Implementation - Proceedings of the 6th International Workshop on Structural Health Monitoring, IWSHM 2007. Structural Health Monitoring 2007: Quantification, Validation, and Implementation - Proceedings of the 6th International Workshop on Structural Health Monitoring, IWSHM 2007, vol. 2, DEStech Publications, pp. 2015-2022, 6th International Workshop on Structural Health Monitoring: Quantification, Validation, and Implementation, IWSHM 2007, Stanford, United States, 9/11/07.

Takahashi I, Ito Y, Takeda SL, Iwahori Y, Yashiro S, Takatsubo J et al. Debonding detection in scarf-repaired CFRP laminates using lamb-wave visualization by generation laser scanning method. In Chang F-K, editor, Structural Health Monitoring 2007: Quantification, Validation, and Implementation - Proceedings of the 6th International Workshop on Structural Health Monitoring, IWSHM 2007. DEStech Publications. 2007. p. 2015-2022. (Structural Health Monitoring 2007: Quantification, Validation, and Implementation - Proceedings of the 6th International Workshop on Structural Health Monitoring, IWSHM 2007).

Takahashi, I. ; Ito, Y. ; Takeda, S. L. et al. / Debonding detection in scarf-repaired CFRP laminates using lamb-wave visualization by generation laser scanning method. Structural Health Monitoring 2007: Quantification, Validation, and Implementation - Proceedings of the 6th International Workshop on Structural Health Monitoring, IWSHM 2007. editor / Fu-Kuo Chang. DEStech Publications, 2007. pp. 2015-2022 (Structural Health Monitoring 2007: Quantification, Validation, and Implementation - Proceedings of the 6th International Workshop on Structural Health Monitoring, IWSHM 2007).

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abstract = "In this research, the health monitoring technique for the detection of impact damages on the scarf-repaired composites is established. We detect the debondings of adhesive layer by using the Lamb-waves propagating in structures. We visualized Lamb waves propagating in scarf-repaired composites by pulsed-laser scanning and observed the change in the behavior of wave propagation due to the damages. We applied this technique to the scarf-repaired specimens with artificial defects. In these results, the reflection and scattering of the elastic waves at the boundary of defects were observed. These results indicate that this visualization technique is effective for the detection of impact damages in scarf-repaired composites.",

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AB - In this research, the health monitoring technique for the detection of impact damages on the scarf-repaired composites is established. We detect the debondings of adhesive layer by using the Lamb-waves propagating in structures. We visualized Lamb waves propagating in scarf-repaired composites by pulsed-laser scanning and observed the change in the behavior of wave propagation due to the damages. We applied this technique to the scarf-repaired specimens with artificial defects. In these results, the reflection and scattering of the elastic waves at the boundary of defects were observed. These results indicate that this visualization technique is effective for the detection of impact damages in scarf-repaired composites.

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Debonding detection in scarf-repaired CFRP laminates using lamb-wave visualization by generation laser scanning method

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