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Naslov:Thermal post-impact behaviour of closed-cell cellular structures with fillers
Avtorji:Vesenjak, Matej (Avtor)
Öchsner, Andreas (Avtor)
Ren, Zoran (Avtor)
Datoteke:URL http://www.scientific.net/0-87849-438-3/196/
 
Jezik:Angleški jezik
Vrsta gradiva:Neznano ()
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FS - Fakulteta za strojništvo
Opis:The study describes the behavior of regular closed-cell cellular structure with gaseous fillers under impact conditions and consequent post-impact thermal conduction due to the compression of filler gas. Two dependent but different analyses types have been carried out for this purpose: (i) a strongly coupled fluid-structure interaction and (ii) a weakly coupled thermal- structural analysis. This paper describes the structural analyses of the closed-cell cellular structure under impact loading. The explicit code LS-DYNA was used to computationally determine the behavior of cellular structure under compressive dynamic loading, where one unit volume element of the cellular structure has been discretised with finite elements considering a simultaneous strongly coupled interaction with the gaseous pore filler. Closed-cell cellular structures with different relative densities and initial pore pressures have been considered. Computational simulations have shown that the gaseous filler influences the mechanical behavior of cellular structure regarding the loading type, relative density and type of the base material. It was determined that the filler's temperature significantly increases due to the compressive impact loading, which might influence the macroscopic behavior of the cellular structure.
Ključne besede:mechanics, cellular structures, closed cells, gas fillers, impact loading, fluid-structure interaction, dynamic loads, LS-DYNA, ANSYS CFX 10.0, computational simulations
Leto izida:2007
UDK:620.178.7:[531/533:519.61/.64]
COBISS_ID:11159318 Novo okno
ISSN pri članku:0255-5476
NUK URN:URN:SI:UM:DK:HTFPJXEJ
Število ogledov:1144
Število prenosov:24
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
Področja:Ostalo
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Gradivo je del revije

Naslov:Materials science forum
Skrajšan naslov:Mater. sci. forum
Založnik:Trans Tech
ISSN:0255-5476
COBISS.SI-ID:15486725 Novo okno

Sekundarni jezik

Jezik:Angleški jezik
Ključne besede:mehanika, celične strukture, zaprte celice, plinsko polnilo, udarne obremenitve, interakcija fluid-konstrukcija, dinamične obremenitve, LS-DYNA, ANSYS CFX 10.0, računalniške simulacije


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