Dependency of effective modulus of polycrystalline aggregates on macro-geometric configuration
Polycrystalline aggregates are made in different macro-geometric configurations (line, thin film, bulk configurations etc.) for various engineering applications. Different mechanical behaviors and properties have been noticed among these configurations. In the present study, a finite element scheme...
| Main Authors: | , |
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| Format: | Journal Article |
| Language: | English |
| Published: |
2013
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| Online Access: | https://hdl.handle.net/10356/101582 http://hdl.handle.net/10220/16837 |
| _version_ | 1826122249084600320 |
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| author | Fan, Hui Xie, XiaoMei |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Fan, Hui Xie, XiaoMei |
| author_sort | Fan, Hui |
| collection | NTU |
| description | Polycrystalline aggregates are made in different macro-geometric configurations (line, thin film, bulk configurations etc.) for various engineering applications. Different mechanical behaviors and properties have been noticed among these configurations. In the present study, a finite element scheme with statistical consideration is employed to systematically investigate the effective modulus of polycrystalline copper in various geometric configurations. The numerical results show that the macro-scale geometric configuration is a key factor in determining the effective modulus of polycrystalline aggregates. The influence of microstructure on the effective modulus is examined by comparing the Voronoi model and uniform square grain model. The negligible discrepancy between the above two models indicates that the simple uniform model is feasible in simulating the real microstructure of polycrystalline aggregates with low and medium anisotropy. |
| first_indexed | 2024-10-01T05:45:04Z |
| format | Journal Article |
| id | ntu-10356/101582 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:45:04Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/1015822020-03-07T13:22:20Z Dependency of effective modulus of polycrystalline aggregates on macro-geometric configuration Fan, Hui Xie, XiaoMei School of Mechanical and Aerospace Engineering DRNTU::Engineering::Mechanical engineering Polycrystalline aggregates are made in different macro-geometric configurations (line, thin film, bulk configurations etc.) for various engineering applications. Different mechanical behaviors and properties have been noticed among these configurations. In the present study, a finite element scheme with statistical consideration is employed to systematically investigate the effective modulus of polycrystalline copper in various geometric configurations. The numerical results show that the macro-scale geometric configuration is a key factor in determining the effective modulus of polycrystalline aggregates. The influence of microstructure on the effective modulus is examined by comparing the Voronoi model and uniform square grain model. The negligible discrepancy between the above two models indicates that the simple uniform model is feasible in simulating the real microstructure of polycrystalline aggregates with low and medium anisotropy. 2013-10-24T08:44:18Z 2019-12-06T20:40:52Z 2013-10-24T08:44:18Z 2019-12-06T20:40:52Z 2012 2012 Journal Article Fan, H., & Xie, X. (2012). Dependency of effective modulus of polycrystalline aggregates on macro-geometric configuration. International journal of applied mechanics, 4(3), 1250031-. https://hdl.handle.net/10356/101582 http://hdl.handle.net/10220/16837 10.1142/S1758825112500317 en International journal of applied mechanics |
| spellingShingle | DRNTU::Engineering::Mechanical engineering Fan, Hui Xie, XiaoMei Dependency of effective modulus of polycrystalline aggregates on macro-geometric configuration |
| title | Dependency of effective modulus of polycrystalline aggregates on macro-geometric configuration |
| title_full | Dependency of effective modulus of polycrystalline aggregates on macro-geometric configuration |
| title_fullStr | Dependency of effective modulus of polycrystalline aggregates on macro-geometric configuration |
| title_full_unstemmed | Dependency of effective modulus of polycrystalline aggregates on macro-geometric configuration |
| title_short | Dependency of effective modulus of polycrystalline aggregates on macro-geometric configuration |
| title_sort | dependency of effective modulus of polycrystalline aggregates on macro geometric configuration |
| topic | DRNTU::Engineering::Mechanical engineering |
| url | https://hdl.handle.net/10356/101582 http://hdl.handle.net/10220/16837 |
| work_keys_str_mv | AT fanhui dependencyofeffectivemodulusofpolycrystallineaggregatesonmacrogeometricconfiguration AT xiexiaomei dependencyofeffectivemodulusofpolycrystallineaggregatesonmacrogeometricconfiguration |