Simulation of an impact test of a composite with closed cell aluminium foam

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F14%3A00431440" target="_blank" >RIV/68378297:_____/14:00431440 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.ctresources.info/ccp/paper.html?id=8231" target="_blank" >http://www.ctresources.info/ccp/paper.html?id=8231</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4203/ccp.106.88" target="_blank" >10.4203/ccp.106.88</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Simulation of an impact test of a composite with closed cell aluminium foam

Popis výsledku v původním jazyce

This paper focuses on modeling and simulation of deformation behavior of a sandwich structure composed of closed-cell metal foam, expanded polystyrene and plastic foil. Such a structure is intended to be used for energy absorbing applications such as motorcycle helmets. First, individual materials as well as sandwich panels were tested in a drop tower for different impact velocities to generate high strain rate conditions. The digital image correlation method was employed to use stress-strain curves atthree impact speeds. 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 expe

Název v anglickém jazyce

Simulation of an impact test of a composite with closed cell aluminium foam

Popis výsledku anglicky

This paper focuses on modeling and simulation of deformation behavior of a sandwich structure composed of closed-cell metal foam, expanded polystyrene and plastic foil. Such a structure is intended to be used for energy absorbing applications such as motorcycle helmets. First, individual materials as well as sandwich panels were tested in a drop tower for different impact velocities to generate high strain rate conditions. The digital image correlation method was employed to use stress-strain curves atthree impact speeds. 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 expe

Druh

D - Stať ve sborníku

CEP obor

JI - Kompositní materiály

OECD FORD obor

—

Projekt

<a href="/cs/project/GAP105%2F12%2F0824" target="_blank" >GAP105/12/0824: Stanovení strukturálních a mechanických vlastností kovových pěn pomocí nanoindentace, mikrostrukturálních MKP modelů a mechanických zkoušek</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název statě ve sborníku

Civil-Comp Proceedings 106. Proceedings of the twelfth international conference on computational structures technology

ISBN

978-1-905088-61-4

ISSN

1759-3433

e-ISSN

—

Počet stran výsledku

21

Strana od-do

—

Název nakladatele

Civil-Comp Press

Místo vydání

Kippen

Místo konání akce

Neapol

Datum konání akce

2. 9. 2014

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—