Numerical and analytical assessment of elastic properties of metal foams - a comparative study of modulus-porosity relations

0430898 - ÚTAM 2015 DE eng C - Konferenční příspěvek (zahraniční konf.)
Koudelka_ml., P. - Jiroušek, O. - Doktor, Tomáš - Zlámal, Petr - Fíla, Tomáš
Numerical and analytical assessment of elastic properties of metal foams - a comparative study of modulus-porosity relations.
Experimental methods and numerical simulation in engineering science. Proceedings of the XIVth bilateral Czech/German symposium. Wuppertal: Institute for statics and dynamics of structures. University of Wuppertal, 2014 - (Harte, R.). ISBN N.
[Experimental methods and numerical simulation in engineering science. Bilateral Czech/German symposium. /14./. Wuppertal (DE), 04.06.2014-07.06.2014]
Grant CEP: GA ČR(CZ) GAP105/12/0824
Institucionální podpora: RVO:68378297
Klíčová slova: metal foams * modulus-porosity relations * finite element method * compression * effective elastic properties
Kód oboru RIV: JI - Kompozitní materiály

Recently, titanium metal foams are being considered as a suitable replacement for substituting trabecular bone microstructure especially for their similar pore distribution. The most common methods for determination of compressive effective elastic properties of such materials involve different approaches based on finite element analysis (FEA) of their microstructure. The internal geometry is usually modeled by two different methods - directly on the basis of a series of CT scans or using one of discretization schemes. However, all these techniques require highly specialized hardware, software and significant amount of computational time. In this paper, the effective elastic properties of the metal foam are instead obtained by analytical modulus-porosity relations and results are compared with previous FE based analysis.
Trvalý link: http://hdl.handle.net/11104/0235608