Highly efficient ultrasonic vibrothermography for detecting impact damage in hybrid composites

Abstract

The use of wide frequency band piezoelectric transducers in ultrasonic infrared thermography allows analyzing material structural defects under low power ultrasonic stimulation compared to single-frequency stimulation which is performed, for example, by means of powerful magnetostrictive stimulation. Defect resonance frequencies can be determined through the detailed analysis of material surface vibrations by using a technique of laser vibrometry in a wide range of frequencies. This paper describes the approach to analyze ultrasonic resonances in samples with hidden defects by using resonant piezoelectric transducers. The effectiveness of the method is assessed by discussing some key examples of impact damaged graphite/epoxy composite samples hybridized with flax fibers. Optical and powerful ultrasonic stimulation have been also used as alternative inspection techniques.

Original language	English
Title of host publication	Thermosense
Subtitle of host publication	Thermal Infrared Applications XXXIX
Publisher	SPIE
Volume	10214
ISBN (Electronic)	9781510609297
DOIs	https://doi.org/10.1117/12.2262423
Publication status	Published - 2017
Event	Thermosense: Thermal Infrared Applications XXXIX 2017 - Anaheim, United States Duration: 10 Apr 2017 → 13 Apr 2017

Conference

Conference	Thermosense: Thermal Infrared Applications XXXIX 2017
Country	United States
City	Anaheim
Period	10.4.17 → 13.4.17

Keywords

flax fiber
graphite/epoxy composite
impact damage
local resonance
Ultrasonic infrared thermography
vibrothermography

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

Access to Document

10.1117/12.2262423

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Cite this

Derusova, DA , Vavilov, VP , Sfarra, S, Sarasini, F, Druzhinin, NV & Nekhoroshev, VO 2017, Highly efficient ultrasonic vibrothermography for detecting impact damage in hybrid composites. in Thermosense: Thermal Infrared Applications XXXIX. vol. 10214, 102140N, SPIE, Thermosense: Thermal Infrared Applications XXXIX 2017, Anaheim, United States, 10.4.17. https://doi.org/10.1117/12.2262423

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abstract = "The use of wide frequency band piezoelectric transducers in ultrasonic infrared thermography allows analyzing material structural defects under low power ultrasonic stimulation compared to single-frequency stimulation which is performed, for example, by means of powerful magnetostrictive stimulation. Defect resonance frequencies can be determined through the detailed analysis of material surface vibrations by using a technique of laser vibrometry in a wide range of frequencies. This paper describes the approach to analyze ultrasonic resonances in samples with hidden defects by using resonant piezoelectric transducers. The effectiveness of the method is assessed by discussing some key examples of impact damaged graphite/epoxy composite samples hybridized with flax fibers. Optical and powerful ultrasonic stimulation have been also used as alternative inspection techniques.",

keywords = "flax fiber, graphite/epoxy composite, impact damage, local resonance, Ultrasonic infrared thermography, vibrothermography",

author = "Derusova, {D. A.} and Vavilov, {V. P.} and S. Sfarra and F. Sarasini and Druzhinin, {N. V.} and Nekhoroshev, {V. O.}",

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AU - Derusova, D. A.

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AU - Druzhinin, N. V.

AU - Nekhoroshev, V. O.

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AB - The use of wide frequency band piezoelectric transducers in ultrasonic infrared thermography allows analyzing material structural defects under low power ultrasonic stimulation compared to single-frequency stimulation which is performed, for example, by means of powerful magnetostrictive stimulation. Defect resonance frequencies can be determined through the detailed analysis of material surface vibrations by using a technique of laser vibrometry in a wide range of frequencies. This paper describes the approach to analyze ultrasonic resonances in samples with hidden defects by using resonant piezoelectric transducers. The effectiveness of the method is assessed by discussing some key examples of impact damaged graphite/epoxy composite samples hybridized with flax fibers. Optical and powerful ultrasonic stimulation have been also used as alternative inspection techniques.

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KW - graphite/epoxy composite

KW - impact damage

KW - local resonance

KW - Ultrasonic infrared thermography

KW - vibrothermography

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