Effect of interlaminar flaw on composite panel behaviour under acoustic loading

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00010669%3A_____%2F18%3AN0000091" target="_blank" >RIV/00010669:_____/18:N0000091 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.matec-conferences.org/articles/matecconf/abs/2018/47/matecconf_iceaf-v2018_01005/matecconf_iceaf-v2018_01005.html" target="_blank" >https://www.matec-conferences.org/articles/matecconf/abs/2018/47/matecconf_iceaf-v2018_01005/matecconf_iceaf-v2018_01005.html</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/matecconf/201818801005" target="_blank" >10.1051/matecconf/201818801005</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of interlaminar flaw on composite panel behaviour under acoustic loading

Popis výsledku v původním jazyce

A design of airframe structures has to be accompanied by material properties testing. Special focus has to be laid on high frequency fatigue behaviour. The acoustic fatigue test equipment for grazing wave’s incidence was designed based on the FE analyses. Flat composite panels were designed and manufactured using the Hexply 8552/AGP193-PW prepreg with different fiber lay-ups and with simulation of production imperfections or operational damage. Dynamic behaviour of panels was tested using three regimes of acoustic loading: white noise spectrum, engine noise spectrum and discrete harmonic frequencies loading. Rayleigh damping coefficients were evaluated for later use in FE models. Panel health was checked periodically through a power spectral density response on white noise signal. The ultrasonic NDT instruments were used for monitoring of relevant delamination increment. No increments of delamination were detected. The available acoustic power was below the fatigue limit of the tested structure.

Název v anglickém jazyce

Effect of interlaminar flaw on composite panel behaviour under acoustic loading

Popis výsledku anglicky

A design of airframe structures has to be accompanied by material properties testing. Special focus has to be laid on high frequency fatigue behaviour. The acoustic fatigue test equipment for grazing wave’s incidence was designed based on the FE analyses. Flat composite panels were designed and manufactured using the Hexply 8552/AGP193-PW prepreg with different fiber lay-ups and with simulation of production imperfections or operational damage. Dynamic behaviour of panels was tested using three regimes of acoustic loading: white noise spectrum, engine noise spectrum and discrete harmonic frequencies loading. Rayleigh damping coefficients were evaluated for later use in FE models. Panel health was checked periodically through a power spectral density response on white noise signal. The ultrasonic NDT instruments were used for monitoring of relevant delamination increment. No increments of delamination were detected. The available acoustic power was below the fatigue limit of the tested structure.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20304 - Aerospace engineering

Projekt

<a href="/cs/project/TE02000032" target="_blank" >TE02000032: Výzkumné centrum pokročilých leteckých konstrukcí</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

MATEC Web of Conferences, vol. 188, art. no. 01005

ISBN

—

ISSN

2261236X

e-ISSN

—

Počet stran výsledku

8

Strana od-do

nestránkováno

Název nakladatele

EDP Sciences

Místo vydání

Neuveden

Místo konání akce

ostrov Chios, Řecko

Datum konání akce

20. 6. 2018

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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