Strain Concentration and Fracture at the Impact Site during the Compression of a Carbon/Epoxy Composite

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00010669%3A_____%2F13%3A%230001560" target="_blank" >RIV/00010669:_____/13:#0001560 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.vzlu.cz/cz/transfer-vysledku/clanky-ve-sbornicich-d/" target="_blank" >http://www.vzlu.cz/cz/transfer-vysledku/clanky-ve-sbornicich-d/</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Strain Concentration and Fracture at the Impact Site during the Compression of a Carbon/Epoxy Composite

Popis výsledku v původním jazyce

Polymer composite panels are widely used in aeronautic and aerospace structures due to the high strength-to-weight ratios of these structures. A series of compression-after-impact (CAI) tests was performed on a composite made of a carbon-fibre-reinforcedepoxy resin matrix. The objective of this study is to determine the strain fields and failure mechanisms during the failure of the impacted composite laminates when subjected to compression. A digital image correlation and fractographic analysis by means of optical and electron microscopy are used for this purpose. The full-field strain measurements indicate a concentrated band of compressive strain near the impact, where buckling occurs. The results indicate that the strain concentration factor can beconsidered to be a failure criterion. The shear strain visualisation around the impact reveals an area of heterogeneous deformation that is comparable to the detected delamination area acquired by an ultrasonic technique. Fibre and inter

Název v anglickém jazyce

Strain Concentration and Fracture at the Impact Site during the Compression of a Carbon/Epoxy Composite

Popis výsledku anglicky

Polymer composite panels are widely used in aeronautic and aerospace structures due to the high strength-to-weight ratios of these structures. A series of compression-after-impact (CAI) tests was performed on a composite made of a carbon-fibre-reinforcedepoxy resin matrix. The objective of this study is to determine the strain fields and failure mechanisms during the failure of the impacted composite laminates when subjected to compression. A digital image correlation and fractographic analysis by means of optical and electron microscopy are used for this purpose. The full-field strain measurements indicate a concentrated band of compressive strain near the impact, where buckling occurs. The results indicate that the strain concentration factor can beconsidered to be a failure criterion. The shear strain visualisation around the impact reveals an area of heterogeneous deformation that is comparable to the detected delamination area acquired by an ultrasonic technique. Fibre and inter

Druh

D - Stať ve sborníku

CEP obor

JI - Kompositní materiály

OECD FORD obor

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Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název statě ve sborníku

3rd International Conference of Engineering Against Failure (ICEAF III)

ISBN

978-960-88104-3-3

ISSN

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e-ISSN

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Počet stran výsledku

8

Strana od-do

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Název nakladatele

Laboratory of Technology & Strength of Materials, University of Patras (Greece)

Místo vydání

Kos (Greece)

Místo konání akce

Kos (Greece)

Datum konání akce

26. 6. 2013

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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