High-Velocity Impact Detection and Localization Enabled by 10 MSa/s Sample-Rate FBG Interrogation

Egor Liokumovitch, Ziv Glasser, Stas Bank, Iddo Kressel, Uri Ben-Simon, Shay Shoham, Shmuel Sternklar

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Real-time structural health monitoring (SHM) systems for airborne structures can help detect and predict damage to critical components. This study demonstrates a system for real-time detection and evaluation of high-velocity foreign object impacts on composite structures using fiber Bragg gratings (FBGs). A set of fiber Bragg gratings were applied to a composite helicopter blade, and by using high-speed and wide frequency-band FBG interrogation, we demonstrate object impact detection made by projectiles of various materials and weights, with speeds from 100 m/s up to 200 m/s and their respective elastic wave propagation along the blade. Early impact damage detection has the potential to reduce the chance of critical failure and decrease aircraft downtime caused by rigorous and time-consuming non-destructive inspections.

Original languageEnglish
Title of host publicationStructural Health Monitoring 2023
Subtitle of host publicationDesigning SHM for Sustainability, Maintainability, and Reliability - Proceedings of the 14th International Workshop on Structural Health Monitoring
EditorsSaman Farhangdoust, Alfredo Guemes, Fu-Kuo Chang
PublisherDEStech Publications
Pages1079-1085
Number of pages7
ISBN (Electronic)9781605956930
StatePublished - 2023
Event14th International Workshop on Structural Health Monitoring: Designing SHM for Sustainability, Maintainability, and Reliability, IWSHM 2023 - Stanford, United States
Duration: 12 Sep 202314 Sep 2023

Publication series

NameStructural Health Monitoring 2023: Designing SHM for Sustainability, Maintainability, and Reliability - Proceedings of the 14th International Workshop on Structural Health Monitoring

Conference

Conference14th International Workshop on Structural Health Monitoring: Designing SHM for Sustainability, Maintainability, and Reliability, IWSHM 2023
Country/TerritoryUnited States
CityStanford
Period12/09/2314/09/23

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