Inspection of local influenced zones in micro-scale aluminium specimens

0428834 - ÚTAM 2015 RIV CH eng C - Conference Paper (international conference)
Zlámal, Petr - Doktor, Tomáš - Koudelka_ml., Petr - Fíla, Tomáš - Kytýř, Daniel - Jiroušek, Ondřej - Králík, V. - Němeček, J.
Inspection of local influenced zones in micro-scale aluminium specimens.
Key Engineering Materials. Vol. 606. Durnten-Zurich: Trans Tech Publications, 2014 - (Haušild, P.), s. 39-42. ISBN 978-3-03835-062-0. ISSN 1013-9826.
[Local Mechanical Properties /10./. Kutná Hora (CZ), 06.11.2013-08.11.2013]
R&D Projects: GA ČR(CZ) GAP105/12/0824
Institutional support: RVO:68378297
Keywords : aluminium foam * nanoindentation * microscale specimens * local influenced zone
Subject RIV: JI - Composite Materials
http://www.scientific.net/KEM.606.39

This study is focused on detection and characterisation of influenced zones in micro-scale specimens of aluminium foam after thermal and mechanical loading induced by preparation process for three-point bending test. Two cell-wall specimens were prepared from a slab of aluminium foam and influences of preparation process (machining) and thermal load on local mechanical properties were investigated using nanoindentation. Although the nanoindentation is powerful method for investigation of material properties of small zones, it can be reliably used only to obtain information about elastic properties. Due to limitation of the nanoindentation for reliable measurement of inelastic properties, plastic properties were determined using a set of indirect finite element simulations of nanoindentation tests. The procedure is based on fitting numerical results to experimentally measured force-depth curves.
Permanent Link: http://hdl.handle.net/11104/0234146