Elastic moduli of model random three-dimensional closed-cell cellular solids
Description
<p>Most cellular solids are random materials, while practically all theoretical structure-property results are for periodic models. To be able to generate theoretical results for random models, the finite element method (FEM) was used to study the elastic properties of solids with a closed-cell cellular structure. We have computed the density (ρ) and microstructure dependence of the Young's modulus (E) and Poisson's ratio (PR) for several different isotropic random models based on Voronoi tessellations and level-cut Gaussian random fields. The effect of partially open cells is also considered. The results, which are best described by a power law E∝ρ<sup>n</sup> (1<n<2), show the influence of randomness and isotropy on the properties of closed-cell cellular materials, and are found to be in good agreement with experimental data.</p>
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| ID Code: | 235863 | ||
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| Item Type: | Contribution to Journal (Journal Article) | ||
| Refereed: | Yes | ||
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| Additional Information: | Funding Information: A.R. thanks the Fulbright Foundation and Australian Research Council for financial support. We also thank the Partnership for High-Performance Concrete program of the National Institute of Standards and Technology for partial support of this work. | ||
| Measurements or Duration: | 9 pages | ||
| DOI: | 10.1016/S1359-6454(00)00314-1 | ||
| ISSN: | 1359-6454 | ||
| Pure ID: | 116891795 | ||
| Divisions: | Current > QUT Faculties and Divisions > Faculty of Science Current > Schools > School of Mathematical Sciences |
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| Funding Information: | A.R. thanks the Fulbright Foundation and Australian Research Council for financial support. We also thank the Partnership for High-Performance Concrete program of the National Institute of Standards and Technology for partial support of this work. | ||
| Copyright Owner: | Consult author(s) regarding copyright matters | ||
| Copyright Statement: | This work is covered by copyright. Unless the document is being made available under a Creative Commons Licence, you must assume that re-use is limited to personal use and that permission from the copyright owner must be obtained for all other uses. If the document is available under a Creative Commons License (or other specified license) then refer to the Licence for details of permitted re-use. It is a condition of access that users recognise and abide by the legal requirements associated with these rights. If you believe that this work infringes copyright please provide details by email to qut.copyright@qut.edu.au | ||
| Deposited On: | 28 Oct 2022 02:49 | ||
| Last Modified: | 02 Aug 2024 16:49 |
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