Towards behavior by design: A case study on corrugated architectures
| Autor: | Rémy Dendievel, Damien Fabrègue, Emeric Plancher, Pierre Lhuissier, L. Héraud, Guilhem Martin, Jean-Jacques Blandin |
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| Přispěvatelé: | Science et Ingénierie des Matériaux et Procédés (SIMaP ), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Matériaux, ingénierie et science [Villeurbanne] (MATEIS), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Mechanical Engineering Mechanical engineering Titanium alloy 02 engineering and technology Design strategy Gauge (firearms) [SPI.MECA]Engineering Sciences [physics]/Mechanics [physics.med-ph] 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Finite element method 0104 chemical sciences [SPI.MAT]Engineering Sciences [physics]/Materials Stress (mechanics) Mechanics of Materials Ultimate tensile strength lcsh:TA401-492 Cathode ray lcsh:Materials of engineering and construction. Mechanics of materials General Materials Science [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering Tomography 0210 nano-technology ComputingMilieux_MISCELLANEOUS |
| Zdroj: | Materials and Design Materials and Design, Elsevier, 2019, 166, pp.107604. ⟨10.1016/j.matdes.2019.107604⟩ Materials & Design, Vol 166, Iss, Pp-(2019) |
| ISSN: | 0264-1275 |
| Popis: | A design strategy, referred to as behavior by design, was introduced to develop novel architectured materials starting from their expected stress-strain response. Target behaviors in this strategy have unusual shapes that provide new functions to the material. Here, a numerical toolbox was employed to predict the geometry of metal tensile samples with a corrugated gauge section, given the expected characteristics of their stress-strain response. A multiscale approach, based on a finite element model, was used to construct characteristic points and indices on the macroscopic stress-strain curves to select the relevant input geometrical parameters. Additive manufacturing (electron beam melting) was employed to build several predicted geometries in Ti-6Al-4V titanium alloy. Mechanical testing revealed a good agreement between the experimental and predicted behaviors with limited difference in strain (0.8%) and stress (50 MPa). Shape variations such as local thickness fluctuations were identified using X-ray tomography as a source of mismatch between simulations and experiments. The ability to control the whole shape of unusual stress-strain curves is expected to bring new exciting functionalities to architectured materials. Keywords: Behavior by design, Additive manufacturing, Architectured materials, Strain hardening, X-ray tomography |
| Databáze: | OpenAIRE |
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