X-ray and finite element analysis of deformation response of closed-cell metal foam subjected to compressive loading

0388997 - ÚTAM 2013 RIV GB eng J - Journal Article
Jiroušek, Ondřej - Doktor, Tomáš - Kytýř, Daniel - Zlámal, Petr - Fíla, Tomáš - Koudelka_ml., Petr - Jandejsek, Ivan - Vavřík, Daniel
X-ray and finite element analysis of deformation response of closed-cell metal foam subjected to compressive loading.
Journal of Instrumentation. Roč. 8, č. 2 (2013), s. 2012-2016. ISSN 1748-0221. E-ISSN 1748-0221
R&D Projects: GA ČR GAP105/12/0824
Institutional support: RVO:68378297
Keywords : X-ray radiography and digital radiography * computerized tomography and computed radiography * pixelated detectors and associated VLSI electronics
Subject RIV: JG - Metallurgy
Impact factor: 1.526, year: 2013
http://iopscience.iop.org/1748-0221/8/02/C02012

Time-lapse X-ray computed microtomography was employed to quantify the deformation behaviour of closed-cell aluminium foam. The specimen was incrementally loaded and tomographically scanned using a custom X-ray tomographic device to capture the deforming microstructure. Because of the very small thickness of the cell walls and the high ratio between pore size and cell wall thickness cone-beam reconstruction procedure was applied. A finite element (FE) model was developed based on the reconstructed three-dimensional data. The FE model was used for two purposes: i) the nodal points were used for tracking the displacements of the deforming structure, ii) verification of the material model for description of the foam's deformational behaviour.
Permanent Link: http://hdl.handle.net/11104/0218045