Simulation of an Impact Test of Composite with Closed Cell Aluminium Foam

Kód výsledku v IS VaVaI

RIV/68407700:21110/14:00222259 - isvavai.cz

Výsledek na webu

http://dx.doi.org/10.4203/ccp.106

DOI - Digital Object Identifier

10.4203/ccp.106

Jazyk výsledku

angličtina

Název v původním jazyce

Simulation of an Impact Test of Composite with Closed Cell Aluminium Foam

Popis výsledku v původním jazyce

The paper is focused on modeling and simulation of deformation behavior of a sandwich structure composed of closed-cell metal foam, expanded polystyren and plastic foil. Such structure is intended to be used for energy absorbing application like motorcycle helmets. At first, individual materials as well as sandwich panels were tested in a drop tower for different impact velocities to generate high strain rate conditions. Digital image correlation method was employed to receive stress-strain curves at three impact speeds. At second, virtual experiments with selected strain rate sensitive constitutive models were performed to best fit the experimental results. Good correlation between experimental and numerical results was achieved with Chang?s continuummaterial model for low density foams. Parameters of the model were identified directly from the experimental stress-strain curves. Finally, continuum finite element simulations of a sandwich structure were performed and compared with exp

Název v anglickém jazyce

Simulation of an Impact Test of Composite with Closed Cell Aluminium Foam

Popis výsledku anglicky

The paper is focused on modeling and simulation of deformation behavior of a sandwich structure composed of closed-cell metal foam, expanded polystyren and plastic foil. Such structure is intended to be used for energy absorbing application like motorcycle helmets. At first, individual materials as well as sandwich panels were tested in a drop tower for different impact velocities to generate high strain rate conditions. Digital image correlation method was employed to receive stress-strain curves at three impact speeds. At second, virtual experiments with selected strain rate sensitive constitutive models were performed to best fit the experimental results. Good correlation between experimental and numerical results was achieved with Chang?s continuummaterial model for low density foams. Parameters of the model were identified directly from the experimental stress-strain curves. Finally, continuum finite element simulations of a sandwich structure were performed and compared with exp

Druh

D - Stať ve sborníku

CEP obor

JI - Kompositní materiály

OECD FORD obor

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Projekt

GAP105/12/0824: Stanovení strukturálních a mechanických vlastností kovových pěn pomocí nanoindentace, mikrostrukturálních MKP modelů a mechanických zkoušek

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název statě ve sborníku

PROCEEDINGS OF THE TWELFTH INTERNATIONAL CONFERENCE ON COMPUTATIONAL STRUCTURES TECHNOLOGY

ISBN

978-1-905088-61-4

ISSN

1759-3433

e-ISSN

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Počet stran výsledku

21

Strana od-do

1-21

Název nakladatele

Civil-Comp Press Ltd

Místo vydání

Stirling

Místo konání akce

Neapol

Datum konání akce

2. 9. 2014

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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