Damage and damaging impact monitoring by PZT sensor-based HUMS

Daniel L. Osmont; Marc Dupont; Remi Gouyon; Michel B. Lemistre; Daniel L. Balageas

doi:10.1117/12.388095

12 June 2000 Damage and damaging impact monitoring by PZT sensor-based HUMS

Daniel L. Osmont, Marc Dupont, Remi Gouyon, Michel B. Lemistre, Daniel L. Balageas

Proceedings Volume 3986, Smart Structures and Materials 2000: Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials; (2000) https://doi.org/10.1117/12.388095
Event: SPIE's 7th Annual International Symposium on Smart Structures and Materials, 2000, Newport Beach, CA, United States

Abstract

The feasibility of an integrated system for permanent detection of damaging impacts on composite structures has been evaluated. This system is based on the existence, during the damaging impact, of an intense acoustic emission in the high frequency range. This acoustic emission is registered by a network of piezoelectric sensors. Experiments are carried out with carbon-epoxy plates equipped with four miniaturized disc- shaped piezoelectric sensors. Both fully embedded and surface positioned sensors are used. Each plate is impacted using a weight drop machine equipped with a Boeing window. The impact energy varies from 2 J to 6 J for 16 ply coupons and from 4 J to 8 J for 32 ply coupons. The procedure used to identify the damaged area as a noise source from the signals received by the sensors allows localizing them with an accuracy of a few centimeters. It also allows to correlate the <<amplitude>> of the identified noise source to the area of the damage. It is then possible to estimate the damaged area from the amplitude of the noise source.

Citation Download Citation

Daniel L. Osmont, Marc Dupont, Remi Gouyon, Michel B. Lemistre, and Daniel L. Balageas "Damage and damaging impact monitoring by PZT sensor-based HUMS", Proc. SPIE 3986, Smart Structures and Materials 2000: Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials, (12 June 2000); https://doi.org/10.1117/12.388095

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available