Probabilistic location estimation of acoustic emission sources in isotropic plates with one sensor

Arvin Ebrahimkhanlou; Salvatore Salamone

doi:10.1117/12.2258618

5 April 2017 Probabilistic location estimation of acoustic emission sources in isotropic plates with one sensor

Arvin Ebrahimkhanlou, Salvatore Salamone

Author Affiliations +

Proceedings Volume 10170, Health Monitoring of Structural and Biological Systems 2017; 1017029 (2017) https://doi.org/10.1117/12.2258618
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2017, Portland, Oregon, United States

Abstract

This paper presents a probabilistic acoustic emission (AE) source localization algorithm for isotropic plate structures. The proposed algorithm requires only one sensor and uniformly monitors the entire area of such plates without any blind zones. In addition, it takes a probabilistic approach and quantifies localization uncertainties. The algorithm combines a modal acoustic emission (MAE) and a reflection-based technique to obtain information pertaining to the location of AE sources. To estimate confidence contours for the location of sources, uncertainties are quantified and propagated through the two techniques. The approach was validated using standard pencil lead break (PLB) tests on an Aluminum plate. The results demonstrate that the proposed source localization algorithm successfully estimates confidence contours for the location of AE sources.

Citation Download Citation

Arvin Ebrahimkhanlou and Salvatore Salamone "Probabilistic location estimation of acoustic emission sources in isotropic plates with one sensor", Proc. SPIE 10170, Health Monitoring of Structural and Biological Systems 2017, 1017029 (5 April 2017); https://doi.org/10.1117/12.2258618

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