Identifiability of single crystal plasticity parameters from residual topographies in Berkovich nanoindentation on FCC nickel
| Autor: | Fabrice Richard, Emile Renner, Patrick Delobelle, Fabien Amiot, Yves Gaillard, Alexandre Bourceret |
|---|---|
| Přispěvatelé: | Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174) (FEMTO-ST), Université de Technologie de Belfort-Montbeliard (UTBM)-Ecole Nationale Supérieure de Mécanique et des Microtechniques (ENSMM)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Mechanical Engineering Mathematical analysis 02 engineering and technology [PHYS.MECA]Physics [physics]/Mechanics [physics] Inverse problem Nanoindentation Plasticity 021001 nanoscience & nanotechnology 16. Peace & justice Condensed Matter Physics Residual 01 natural sciences Finite element method 010305 fluids & plasmas Mechanics of Materials Indentation 0103 physical sciences Identifiability Sensitivity (control systems) 0210 nano-technology |
| Zdroj: | Journal of the Mechanics and Physics of Solids Journal of the Mechanics and Physics of Solids, Elsevier, 2020, 138, pp.103916 (20). ⟨10.1016/j.jmps.2020.103916⟩ |
| ISSN: | 0022-5096 |
| Popis: | International audience; The information richness of imprints topographies obtained after Berkovich nanoindenta- tion tests at grain scale is assessed for identifying all or part of the parameters of a sin- gle crystal plasticity law. In a previous paper (Renner et al., 2016), the strong potential of imprints topographies has been shown through a large experimental campaign con- ducted on nickel samples. A 3D crystal plasticity finite element modelling (CPFEM) of the nanoindentation experiment using the Méric-Cailletaud has also showed a large sensitivity of residual topographies to the indenter/grain orientation and to the plastic parameters, including the interaction matrix coefficients specifying the interactions between disloca- tions on different slip systems. This makes imprints topographies very good candidates to provide information for the single crystal parameters identification. The present paper fo- cuses on the Méric-Cailletaud law parameters identifiability using residual topographies. A method is built to define the best well-posed inverse problem to ensure the parame- ters identification using a crystal plasticity finite element modelling updating (CPFEMU) method. An identifiability index proposed by Richard et al. (Richard et al., 2013) for mea- suring the information richness of the indentation curve is extended to the analysis of residual topographies. This index quantifies the possibility to achieve a stable/unstable so- lution using an inverse method. For the studied behaviour, the results show that eight of the nine Méric-Cailletaud law parameters can be identified using three topographies. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect