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Thermal conductivity of unidirectional composites consisting of randomly dispersed glass fibers and temperature-dependent polyethylene matrix
| Content Provider | Scilit |
|---|---|
| Author | Lin, Wan-Qing Zhang, Yu-Xuan Wang, Hui |
| Copyright Year | 2019 |
| Abstract | This extensive study investigated the influence of microstructure on the effective transverse thermal conductivity of unidirectional glass fiber reinforced composites, in which the fibers are randomly dispersed and the thermal conductivity of polyethylene matrix is a function of test temperature. The microstructure is characterized by parameters such as the number of fibers, fiber volume fraction, fiber size, fiber arrangement and thermal property contrast. Firstly, a simple algorithm is developed to automatically generate closest-to-real random array of fibers in unit cell to reconstruct the composite microstructure. Then, the established two-dimensional random two-component composite unit cell is solved using finite element simulation and the obtained effective thermal conductivities are compared with the theoretical predictions and the experimental results. Subsequently, the effects of microstructure parameters and test temperature are investigated, respectively. It is found that the finite element predicted properties are in very good agreement with the experimental predictions, while they are always lower than the analytically predicted properties. These results can find applications in the design of composite materials taking into account the fiber distribution morphology. |
| Related Links | http://www.degruyter.com/downloadpdf/j/secm.2019.26.issue-1/secm-2019-0024/secm-2019-0024.xml |
| Ending Page | 422 |
| Page Count | 11 |
| Starting Page | 412 |
| ISSN | 07921233 |
| e-ISSN | 21910359 |
| DOI | 10.1515/secm-2019-0024 |
| Journal | Science and Engineering of Composite Materials |
| Issue Number | 1 |
| Volume Number | 26 |
| Language | English |
| Publisher | Walter de Gruyter GmbH |
| Publisher Date | 2019-01-28 |
| Access Restriction | Open |
| Subject Keyword | Science and Engineering of Composite Materials Composite Materials Fiber Reinforced Composites Microstructure Randomness Thermal Conductivity Finite Element Method Journal: Science and Engineering of Composite Materials, Issue- 3 |
| Content Type | Text |
| Resource Type | Article |
