DETERMINATION OF HYGROEXPANSION COEFFICIENTS OF WOOD USING ANALYTICAL AND NUMERICAL HOMOGENIZATION
This paper is concerned with the determination of hygroexpansion coefficients of wood. Wood is a naturally hygroscopic material, attracting moisture from its surroundings. Its dimensions change depending on the actual moisture content. This dependence is characterized by the coefficient of hygroexpa...
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| Language: | English |
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Czech Technical University in Prague
2018-12-01
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| Series: | Acta Polytechnica CTU Proceedings |
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| Online Access: | https://ojs.cvut.cz/ojs/index.php/APP/article/view/5325 |
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| author | Lucie Kucíková Michal Šejnoha Jan Vorel |
| author_facet | Lucie Kucíková Michal Šejnoha Jan Vorel |
| author_sort | Lucie Kucíková |
| collection | DOAJ |
| description | This paper is concerned with the determination of hygroexpansion coefficients of wood. Wood is a naturally hygroscopic material, attracting moisture from its surroundings. Its dimensions change depending on the actual moisture content. This dependence is characterized by the coefficient of hygroexpansion. For complex microstructures, this coefficient can be determined, similarly to the coefficient of thermal expansion, either from analytical or numerical homogenization. The homogenization procedure, used in this paper, comprises several steps corresponding to the wood structural composition. Accuracy of this approach is governed by correctness of the chosen input parameters. One of the most important parameters are the volume fractions of the earlywood and latewood. Ascertained dependence of the earlywood and latewood volume fractions on dry wood density is also presented. |
| format | Article |
| id | doaj-art-e11f615e13e44e659d733301d5f28b43 |
| institution | DOAJ |
| issn | 2336-5382 |
| language | English |
| publishDate | 2018-12-01 |
| publisher | Czech Technical University in Prague |
| record_format | Article |
| series | Acta Polytechnica CTU Proceedings |
| spelling | doaj-art-e11f615e13e44e659d733301d5f28b432025-08-20T02:50:55ZengCzech Technical University in PragueActa Polytechnica CTU Proceedings2336-53822018-12-01150515610.14311/APP.2018.15.00514347DETERMINATION OF HYGROEXPANSION COEFFICIENTS OF WOOD USING ANALYTICAL AND NUMERICAL HOMOGENIZATIONLucie KucíkováMichal ŠejnohaJan VorelThis paper is concerned with the determination of hygroexpansion coefficients of wood. Wood is a naturally hygroscopic material, attracting moisture from its surroundings. Its dimensions change depending on the actual moisture content. This dependence is characterized by the coefficient of hygroexpansion. For complex microstructures, this coefficient can be determined, similarly to the coefficient of thermal expansion, either from analytical or numerical homogenization. The homogenization procedure, used in this paper, comprises several steps corresponding to the wood structural composition. Accuracy of this approach is governed by correctness of the chosen input parameters. One of the most important parameters are the volume fractions of the earlywood and latewood. Ascertained dependence of the earlywood and latewood volume fractions on dry wood density is also presented.https://ojs.cvut.cz/ojs/index.php/APP/article/view/5325wood, homogenization, hygroexpansion coefficient |
| spellingShingle | Lucie Kucíková Michal Šejnoha Jan Vorel DETERMINATION OF HYGROEXPANSION COEFFICIENTS OF WOOD USING ANALYTICAL AND NUMERICAL HOMOGENIZATION Acta Polytechnica CTU Proceedings wood, homogenization, hygroexpansion coefficient |
| title | DETERMINATION OF HYGROEXPANSION COEFFICIENTS OF WOOD USING ANALYTICAL AND NUMERICAL HOMOGENIZATION |
| title_full | DETERMINATION OF HYGROEXPANSION COEFFICIENTS OF WOOD USING ANALYTICAL AND NUMERICAL HOMOGENIZATION |
| title_fullStr | DETERMINATION OF HYGROEXPANSION COEFFICIENTS OF WOOD USING ANALYTICAL AND NUMERICAL HOMOGENIZATION |
| title_full_unstemmed | DETERMINATION OF HYGROEXPANSION COEFFICIENTS OF WOOD USING ANALYTICAL AND NUMERICAL HOMOGENIZATION |
| title_short | DETERMINATION OF HYGROEXPANSION COEFFICIENTS OF WOOD USING ANALYTICAL AND NUMERICAL HOMOGENIZATION |
| title_sort | determination of hygroexpansion coefficients of wood using analytical and numerical homogenization |
| topic | wood, homogenization, hygroexpansion coefficient |
| url | https://ojs.cvut.cz/ojs/index.php/APP/article/view/5325 |
| work_keys_str_mv | AT luciekucikova determinationofhygroexpansioncoefficientsofwoodusinganalyticalandnumericalhomogenization AT michalsejnoha determinationofhygroexpansioncoefficientsofwoodusinganalyticalandnumericalhomogenization AT janvorel determinationofhygroexpansioncoefficientsofwoodusinganalyticalandnumericalhomogenization |