Influence of the material microstructural properties on a 3-point bending test
| Autor: | Laurent Tabourot, Ahmed Maati, Salim Belaid, Pascale Balland |
|---|---|
| Přispěvatelé: | Systèmes RF (XLIM-SRF), XLIM (XLIM), Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS)-Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS), Laboratoire SYstèmes et Matériaux pour la MEcatronique (SYMME), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]), Hydrologie-Hydraulique (UR HHLY), Centre national du machinisme agricole, du génie rural, des eaux et forêts (CEMAGREF), BALLAND, PASCALE |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0209 industrial biotechnology
Materials science Three point flexural test Constitutive equation Context (language use) 02 engineering and technology Bending Plasticity Industrial and Manufacturing Engineering [PHYS.MECA.MEMA]Physics [physics]/Mechanics [physics]/Mechanics of materials [physics.class-ph] springback [SPI]Engineering Sciences [physics] 020901 industrial engineering & automation [PHYS.MECA.MEMA] Physics [physics]/Mechanics [physics]/Mechanics of materials [physics.class-ph] local behavior General Materials Science Bending test Composite material ComputingMilieux_MISCELLANEOUS Mechanical Engineering Elastic energy Forming processes 021001 nanoscience & nanotechnology Microstructure strain gradient heterogeneity 0210 nano-technology |
| Zdroj: | Mechanics & Industry Mechanics & Industry, EDP Sciences, 2020, 21 (5), pp.518. ⟨10.1051/meca/2020060⟩ Colloque franco-roumain en hommage au Prof. Cristian Teodosiu, 24ème congrès français de mécanique Colloque franco-roumain en hommage au Prof. Cristian Teodosiu, 24ème congrès français de mécanique, Aug 2019, Brest, France |
| ISSN: | 2257-7777 2257-7750 |
| DOI: | 10.1051/meca/2020060⟩ |
| Popis: | International audience; The purpose of this study is to highlight the role played by some important factors on sprinback phenomenon. This latter affects significantly the geometry of the manufactured product. Large automotive or plane body parts are specifically affected by this phenomenon which complicates the tools design. The study focuses here on specific materials with high trend to develop heterogeneous strains during forming processes. Due to its hexagonal crystalline structure, titanium has initial heterogeneous microstructure that grows stronger when plastic strain occurs. Heterogeneous microstructures induce the coexistence in the material of volumes with different mechanical properties even, in some case, with different mechanical behaviours. Therefore, accommodation between these volumes generates distributed internal stresses and important elastic energy storage. The macroscopic behaviour can be provided either by average phenomenological constitutive equation identical for all locations in the material or by integrating a set of local constitutive relations taking into account the variability of the behaviour as a function of the position in the material. In this context, experimental and numerical studies of a 3-point bending test on titanium alloy are considered. |
| Databáze: | OpenAIRE |
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