Micromechanical simulation and experimental investigation of aluminum-based nanocomposites
Ceramic reinforced metal matrix nanocomposites are widely used in aerospace and auto industries due to their enhanced mechanical and physical properties. In this research, we investigate the mechanical properties of aluminum/Nano-silica composites through experiments and simulations. Aluminum/Nano-s...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2021-02-01
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| Series: | Defence Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214914719313492 |
| _version_ | 1819090978223423488 |
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| author | Mohammad Javad Ghasemi Mohammad Silani Ali Maleki Mostafa Jamshidian |
| author_facet | Mohammad Javad Ghasemi Mohammad Silani Ali Maleki Mostafa Jamshidian |
| author_sort | Mohammad Javad Ghasemi |
| collection | DOAJ |
| description | Ceramic reinforced metal matrix nanocomposites are widely used in aerospace and auto industries due to their enhanced mechanical and physical properties. In this research, we investigate the mechanical properties of aluminum/Nano-silica composites through experiments and simulations. Aluminum/Nano-silica composite samples with different weight percentages of silica nanoparticles are prepared via powder metallurgy. In this method, Nano-silica and aluminum powders are mixed and compressed in a mold, followed by sintering at high temperatures. Uniaxial tensile testing of the nanocomposite samples shows that adding one percent of Nano-silica causes a considerable increase in mechanical properties of nanocomposite compared to pure aluminum. A computational micromechanical model, based on a representative volume element of aluminum/silica nanocomposite, is developed in a commercial finite element software. The model employs an elastoplastic material model along with a ductile damage model for aluminum matrix and linear elastic model for nano-silica particles. Via careful determination of model parameters from the experimental results of pure aluminum samples prepared by powder metallurgy, the proposed computational model has shown satisfactory agreement with experiments. The validated computational model can be used to perform a parametric study to optimize the microstructure of nanocomposite for enhanced mechanical properties. |
| first_indexed | 2024-12-21T22:32:25Z |
| format | Article |
| id | doaj.art-89faba52311542b3b59c48903c9a8f9c |
| institution | Directory Open Access Journal |
| issn | 2214-9147 |
| language | English |
| last_indexed | 2024-12-21T22:32:25Z |
| publishDate | 2021-02-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Defence Technology |
| spelling | doaj.art-89faba52311542b3b59c48903c9a8f9c2022-12-21T18:48:03ZengKeAi Communications Co., Ltd.Defence Technology2214-91472021-02-01171196201Micromechanical simulation and experimental investigation of aluminum-based nanocompositesMohammad Javad Ghasemi0Mohammad Silani1Ali Maleki2Mostafa Jamshidian3Department of Mechanical Engineering, Isfahan University of Technology, Isfahan, 84156-83111, IranCorresponding author.; Department of Mechanical Engineering, Isfahan University of Technology, Isfahan, 84156-83111, IranDepartment of Mechanical Engineering, Isfahan University of Technology, Isfahan, 84156-83111, IranDepartment of Mechanical Engineering, Isfahan University of Technology, Isfahan, 84156-83111, IranCeramic reinforced metal matrix nanocomposites are widely used in aerospace and auto industries due to their enhanced mechanical and physical properties. In this research, we investigate the mechanical properties of aluminum/Nano-silica composites through experiments and simulations. Aluminum/Nano-silica composite samples with different weight percentages of silica nanoparticles are prepared via powder metallurgy. In this method, Nano-silica and aluminum powders are mixed and compressed in a mold, followed by sintering at high temperatures. Uniaxial tensile testing of the nanocomposite samples shows that adding one percent of Nano-silica causes a considerable increase in mechanical properties of nanocomposite compared to pure aluminum. A computational micromechanical model, based on a representative volume element of aluminum/silica nanocomposite, is developed in a commercial finite element software. The model employs an elastoplastic material model along with a ductile damage model for aluminum matrix and linear elastic model for nano-silica particles. Via careful determination of model parameters from the experimental results of pure aluminum samples prepared by powder metallurgy, the proposed computational model has shown satisfactory agreement with experiments. The validated computational model can be used to perform a parametric study to optimize the microstructure of nanocomposite for enhanced mechanical properties.http://www.sciencedirect.com/science/article/pii/S2214914719313492Aluminum/nano-silica compositesPowder metallurgyMicromechanics |
| spellingShingle | Mohammad Javad Ghasemi Mohammad Silani Ali Maleki Mostafa Jamshidian Micromechanical simulation and experimental investigation of aluminum-based nanocomposites Defence Technology Aluminum/nano-silica composites Powder metallurgy Micromechanics |
| title | Micromechanical simulation and experimental investigation of aluminum-based nanocomposites |
| title_full | Micromechanical simulation and experimental investigation of aluminum-based nanocomposites |
| title_fullStr | Micromechanical simulation and experimental investigation of aluminum-based nanocomposites |
| title_full_unstemmed | Micromechanical simulation and experimental investigation of aluminum-based nanocomposites |
| title_short | Micromechanical simulation and experimental investigation of aluminum-based nanocomposites |
| title_sort | micromechanical simulation and experimental investigation of aluminum based nanocomposites |
| topic | Aluminum/nano-silica composites Powder metallurgy Micromechanics |
| url | http://www.sciencedirect.com/science/article/pii/S2214914719313492 |
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