Effective thermal conductivity of functionally graded random micro-heterogeneous materials using representative volume element and BEM
This work introduces a numerical methodology for the computation of the effective thermal conductivity (ETC) of random micro-heterogeneous materials using representative volume elements and the Fast Multipole Boundary Element Method (FMBEM). The methodology is applied to solve a foam-like microstruc...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2011 |
| País: | Argentina |
| Institución: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repositorio: | CONICET Digital (CONICET) |
| Idioma: | inglés |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/10145 |
| Acceso en línea: | http://hdl.handle.net/11336/10145 |
| Access Level: | acceso abierto |
| Palabra clave: | Functionally Graded Materials Numerical Modelling Effective Thermal Conductivity Random Composites Boundary Element Method Homogenization Representative Volume Element https://purl.org/becyt/ford/2.3 https://purl.org/becyt/ford/2 |
| Sumario: | This work introduces a numerical methodology for the computation of the effective thermal conductivity (ETC) of random micro-heterogeneous materials using representative volume elements and the Fast Multipole Boundary Element Method (FMBEM). The methodology is applied to solve a foam-like microstructures consisting of a random distribution of circular isolated holes. The computed ETC values are successfully used to predict the temperature distributions of two materials with functionally graded ETCs. Numerical and analytical results are experimentally validated. The proposed methodology is flexible and versatile, as it is capable to account for both, the geometrical and topological details of the material microstructure. |
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