Indirect Determination of Material Properties of Closed-Cell Metal Foam: Comparison of Voxel and Tetrahedral Finite Element Models

Jiroušek, Ondřej; Koudelka_ml., Petr; Zlámal, Petr

doi:https://dx.doi.org/10.4203/ccp.100.95

Number of the records: 1

Indirect Determination of Material Properties of Closed-Cell Metal Foam: Comparison of Voxel and Tetrahedral Finite Element Models

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SYSNO ASEP	0383338
Document Type	C - Proceedings Paper (int. conf.)
R&D Document Type	Conference Paper
Title	Indirect Determination of Material Properties of Closed-Cell Metal Foam: Comparison of Voxel and Tetrahedral Finite Element Models
Author(s)	Jiroušek, Ondřej (UTAM-F)_{RID, SAI} Koudelka_ml., Petr (UTAM-F)_{RID, SAI, ORCID} Zlámal, Petr (UTAM-F)_{RID, SAI, ORCID}
Number of authors	3
Source Title	Proc. of the 8th International conference on Engineering computational technology 2012. - Stirlingshire : Civil-Comp Press, 2012 / Topping B.H.V. - ISBN 978-1-905088-55-3
Pages	s. 243-253
Number of pages	11 s.
Publication form	Print - P
Action	Engineering Computational Technology 2012 /8./
Event date	04.09.2012-07.09.2012
VEvent location	Dubrovník
Country	HR - Croatia
Event type	WRD
Language	eng - English
Country	GB - United Kingdom
Keywords	metal foam ; closed-cell material ; orthotropic material properties ; indirect methods ; micro-CT ; voxel models ; tetrahedral models
Subject RIV	JI - Composite Materials
Institutional support	UTAM-F - RVO:68378297
DOI	https://doi.org/10.4203/ccp.100.95
Annotation	In this paper a comprehensive evaluation of the microstructural finite element (micro- FE) models of closed-cell aluminum metal foam is given. Comparison of models developed using high resolution three-dimensional image data obtained using microtomographic scanning of a sample with different resolutions is presented. Two sets of micro-finite element models are prepared using the same image data: i) voxel finite element models ii) tetrahedral finite element models. A virtual uni-axial compression test is simulated in threemutually perpendicular directions to obtain the elastic moduli and the maximum values of the principal stresses as well as to quantify the anisotropy of the back-calculated material characteristics. The requirements in terms of the minimal spatial resolution of the microtomographic images needed for proper estimation of elastic properties of a closed-cell metal foams are given.
Workplace	Institute of Theoretical and Applied Mechanics
Contact	Kulawiecová Kateřina, kulawiecova@itam.cas.cz, Tel.: 225 443 285
Year of Publishing	2013

Number of the records: 1