Characterization of superelastic NiTi films by nanoindentation: experiments and simulations

0432237 - ÚT 2015 CZ eng A - Abstrakt
Frost, Miroslav - Kruisová, Alena - Sedlák, Petr - Sháněl, Vít - Landa, Michal - Kabla, M. - Shilo, D.
Characterization of superelastic NiTi films by nanoindentation: experiments and simulations.
13th International Symposium on Physics of Materials : ISPMA 13. Praha: Department of Physics of Materials, Charles University in Prague, 2014.
[ISPMA /13./. 31.08.2014-04.09.2014, Praha]
Grant CEP: GA ČR GA14-15264S; GA ČR(CZ) GP14-28306P
Grant ostatní: Rada Programu interní podpory projektů mezinárodní spolupráce AV ČR(CZ) M100761203
Program: M
Institucionální podpora: RVO:61388998
Klíčová slova: numerical simulations * nanoindentation * shape memory alloys
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus

In the present work, we explore what kind of information on material can be obtained from the approach combining nanoindentation experiments and computational modeling; we also assess benefits and limits of such an approach. A computational model of the tests was developed in a finite element software package using our own constitutive model tailored for NiTi-based SMA and simulations with various sets of material input parameters were performed. Detailed analysis of results of these simulations helps to better understand how each material parameter influences the net response of the film to a nanoindentation test.
Trvalý link: http://hdl.handle.net/11104/0239525