Ultrasonic Characterization of CFRP Anisotropy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F15%3A00234702" target="_blank" >RIV/68407700:21230/15:00234702 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61388998:_____/15:00453559

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Ultrasonic Characterization of CFRP Anisotropy

Popis výsledku v původním jazyce

The knowledge about an elastic anisotropy is very important in characterization of materials. In this paper, a new method for evaluation of CFRP (carbon fiber-reinforced plastic) anisotropy is presented. Such material is composed of carbon fabric, i. e.epoxy layers with different orientation, which makes material stronger and lighter. These specific properties are generally used in aerospace and automotive industry. Measurement method is based on a special multi-directional ultrasonic probe with eightbuilt-in piezoceramic elements used for elastic wave propagation measurement. CFRP anisotropy evaluation is twofold: the first method is based on determination of the wave propagation velocities in different directions. The second way exploits the spectral non-linearity between harmonic frequencies ratios and signal amplitude, which is an important parameter for defects detection in NDT (non-destructive testing). Both experimental data were statistically validated and the obtained result

Název v anglickém jazyce

Ultrasonic Characterization of CFRP Anisotropy

Popis výsledku anglicky

The knowledge about an elastic anisotropy is very important in characterization of materials. In this paper, a new method for evaluation of CFRP (carbon fiber-reinforced plastic) anisotropy is presented. Such material is composed of carbon fabric, i. e.epoxy layers with different orientation, which makes material stronger and lighter. These specific properties are generally used in aerospace and automotive industry. Measurement method is based on a special multi-directional ultrasonic probe with eightbuilt-in piezoceramic elements used for elastic wave propagation measurement. CFRP anisotropy evaluation is twofold: the first method is based on determination of the wave propagation velocities in different directions. The second way exploits the spectral non-linearity between harmonic frequencies ratios and signal amplitude, which is an important parameter for defects detection in NDT (non-destructive testing). Both experimental data were statistically validated and the obtained result

Druh

D - Stať ve sborníku

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

SPMS 2015 - Stochastic and Physical Monitoring Systems - Proceedings

ISBN

978-80-01-05841-1

ISSN

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e-ISSN

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Počet stran výsledku

9

Strana od-do

71-79

Název nakladatele

ČVUT

Místo vydání

Praha

Místo konání akce

Drhleny

Datum konání akce

22. 6. 2015

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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