Abstract
This work proposes a novel technique for the localization of low-velocity impacts in composites without a-priori knowledge of the mechanical properties nor the speed of propagating waves, thus overcoming current limitations of existing impact localization methods. The proposed algorithm is based on the estimation of the power of acoustic emissions generated by impacts on a composite plate instrumented with embedded piezo-transducers. The signal power values calculated at sparse sensor locations are interpolated over the sample by using radial basis function networks. The impact coordinates on the specimen surface are estimated by a center-of-gravity method based on the interpolated power values. Experimental tests were performed by using both an instrumented impact hammer and a drop tower. The results obtained showed the validity of the presented approach, which was able to identify the impact locations with high level of accuracy.
| Original language | English |
|---|---|
| Title of host publication | Nondestructive Characterization and Monitoring of Advanced Materials, Aerospace, Civil Infrastructure, and Transportation XIII |
| Editors | Andrew L. Gyekenyesi, Tzu-Yang Yu, H. Felix Wu, Peter J. Shull |
| Publisher | SPIE |
| Volume | 10971 (2019) |
| ISBN (Electronic) | 9781510625976 |
| DOIs | |
| Publication status | Published - 1 Apr 2019 |
| Event | Nondestructive Characterization and Monitoring of Advanced Materials, Aerospace, Civil Infrastructure, and Transportation XIII 2019 - Denver, USA United States Duration: 4 Mar 2019 → 7 Mar 2019 |
Publication series
| Name | Proceedings of SPIE |
|---|---|
| Publisher | SPIE |
| Volume | 10971 |
| ISSN (Print) | 1996-756X |
Conference
| Conference | Nondestructive Characterization and Monitoring of Advanced Materials, Aerospace, Civil Infrastructure, and Transportation XIII 2019 |
|---|---|
| Country | USA United States |
| City | Denver |
| Period | 4/03/19 → 7/03/19 |
Keywords
- composite materials
- embedded transducers
- Impact localization
- radial basis functions
- signal power method
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering
Cite this
Acoustic emission localization in composites using the signal power method and embedded transducers. / De Simone, Mario Emanuele; Cuomo, Stefano; Ciampa, Francesco; Meo, Michele; Nitschke, Sandro; Hornig, Andreas; Modler, Niels.
Nondestructive Characterization and Monitoring of Advanced Materials, Aerospace, Civil Infrastructure, and Transportation XIII. ed. / Andrew L. Gyekenyesi; Tzu-Yang Yu; H. Felix Wu; Peter J. Shull. Vol. 10971 (2019) SPIE, 2019. 109711O (Proceedings of SPIE; Vol. 10971).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Acoustic emission localization in composites using the signal power method and embedded transducers
AU - De Simone, Mario Emanuele
AU - Cuomo, Stefano
AU - Ciampa, Francesco
AU - Meo, Michele
AU - Nitschke, Sandro
AU - Hornig, Andreas
AU - Modler, Niels
PY - 2019/4/1
Y1 - 2019/4/1
N2 - This work proposes a novel technique for the localization of low-velocity impacts in composites without a-priori knowledge of the mechanical properties nor the speed of propagating waves, thus overcoming current limitations of existing impact localization methods. The proposed algorithm is based on the estimation of the power of acoustic emissions generated by impacts on a composite plate instrumented with embedded piezo-transducers. The signal power values calculated at sparse sensor locations are interpolated over the sample by using radial basis function networks. The impact coordinates on the specimen surface are estimated by a center-of-gravity method based on the interpolated power values. Experimental tests were performed by using both an instrumented impact hammer and a drop tower. The results obtained showed the validity of the presented approach, which was able to identify the impact locations with high level of accuracy.
AB - This work proposes a novel technique for the localization of low-velocity impacts in composites without a-priori knowledge of the mechanical properties nor the speed of propagating waves, thus overcoming current limitations of existing impact localization methods. The proposed algorithm is based on the estimation of the power of acoustic emissions generated by impacts on a composite plate instrumented with embedded piezo-transducers. The signal power values calculated at sparse sensor locations are interpolated over the sample by using radial basis function networks. The impact coordinates on the specimen surface are estimated by a center-of-gravity method based on the interpolated power values. Experimental tests were performed by using both an instrumented impact hammer and a drop tower. The results obtained showed the validity of the presented approach, which was able to identify the impact locations with high level of accuracy.
KW - composite materials
KW - embedded transducers
KW - Impact localization
KW - radial basis functions
KW - signal power method
UR - http://www.scopus.com/inward/record.url?scp=85068478324&partnerID=8YFLogxK
U2 - 10.1117/12.2515467
DO - 10.1117/12.2515467
M3 - Conference contribution
VL - 10971 (2019)
T3 - Proceedings of SPIE
BT - Nondestructive Characterization and Monitoring of Advanced Materials, Aerospace, Civil Infrastructure, and Transportation XIII
A2 - Gyekenyesi, Andrew L.
A2 - Yu, Tzu-Yang
A2 - Wu, H. Felix
A2 - Shull, Peter J.
PB - SPIE
ER -