Methods for determining the critical deformations of wood with various moisture content
During construction of bridges, the possibility of flooding periods should be considered. Therefore, it is necessary to understand the degree of possible deformation of wooden structures and calculate the limit of their plasticity and elasticity at different values of moisture content. Thus, the pur...
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| Format: | Article |
| Language: | English |
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Zhytomyr National Agroecological University
2023-01-01
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| Series: | Наукові горизонти |
| Subjects: | |
| Online Access: | https://sciencehorizon.com.ua/en/journals/tom-26-1-2023/metodika-viznachennya-kritichnikh-deformatsiy-derevini-za-riznoyi-vologosti |
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| author | Sviatoslav Homon Serhii Litnitsky Petro Gomon Leonid Kulakovskyi Iryna Kutsyna |
| author_facet | Sviatoslav Homon Serhii Litnitsky Petro Gomon Leonid Kulakovskyi Iryna Kutsyna |
| author_sort | Sviatoslav Homon |
| collection | DOAJ |
| description | During construction of bridges, the possibility of flooding periods should be considered. Therefore, it is necessary to understand the degree of possible deformation of wooden structures and calculate the limit of their plasticity and elasticity at different values of moisture content. Thus, the purpose of study is to find the method for determining the relative critical deformations of wood with different moisture content and analyse the dynamics of their change. Problems of a deformable solid material were investigated by the analysis of a model of complete deformation diagram “stress σс – deformation uс ”, methods of mathematical statistics, and systematic analysis of experimental results. This study allowed formulating the method for determining the relative critical deformations of solid wood at different moisture levels by axial compression along the fibres of experimental samples. Based on the experiment results, the formula for determining the relative critical deformations of solid wood with different moisture was proposed. The dynamics of changes in critical relative deformations at different moisture, and its elastic and plastic components were presented. It was found that in case of drying wood from 30 to 12%, the plastic component of relative critical deformations decreases and the elastic one, on the contrary, increases. The findings can be used in the deformation calculation methodology for wooden elements and structures of bridges, hydraulic structures, buildings, taking into account the changes in the moisture content of the material |
| first_indexed | 2024-03-13T00:31:30Z |
| format | Article |
| id | doaj.art-f46274b7fa8146afaf48de6f993a641b |
| institution | Directory Open Access Journal |
| issn | 2663-2144 |
| language | English |
| last_indexed | 2024-03-13T00:31:30Z |
| publishDate | 2023-01-01 |
| publisher | Zhytomyr National Agroecological University |
| record_format | Article |
| series | Наукові горизонти |
| spelling | doaj.art-f46274b7fa8146afaf48de6f993a641b2023-07-10T14:17:30ZengZhytomyr National Agroecological UniversityНаукові горизонти2663-21442023-01-01261738610.48077/scihor.26(1).2023.73-86Methods for determining the critical deformations of wood with various moisture contentSviatoslav Homon0Serhii Litnitsky1Petro Gomon2Leonid Kulakovskyi3Iryna Kutsyna4National University of Water and Environmental Engineering 33028, 11 Soborna Str., Rivne, UkraineNational University of Water and Environmental Engineering 33028, 11 Soborna Str., Rivne, UkraineNational University of Water and Environmental Engineering 33028, 11 Soborna Str., Rivne, UkraineNational Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute” 03056, 37 Peremohy Sq., Kyiv, UkraineUzhhorod National University 88000, 14 University Str., Uzhgorod, UkraineDuring construction of bridges, the possibility of flooding periods should be considered. Therefore, it is necessary to understand the degree of possible deformation of wooden structures and calculate the limit of their plasticity and elasticity at different values of moisture content. Thus, the purpose of study is to find the method for determining the relative critical deformations of wood with different moisture content and analyse the dynamics of their change. Problems of a deformable solid material were investigated by the analysis of a model of complete deformation diagram “stress σс – deformation uс ”, methods of mathematical statistics, and systematic analysis of experimental results. This study allowed formulating the method for determining the relative critical deformations of solid wood at different moisture levels by axial compression along the fibres of experimental samples. Based on the experiment results, the formula for determining the relative critical deformations of solid wood with different moisture was proposed. The dynamics of changes in critical relative deformations at different moisture, and its elastic and plastic components were presented. It was found that in case of drying wood from 30 to 12%, the plastic component of relative critical deformations decreases and the elastic one, on the contrary, increases. The findings can be used in the deformation calculation methodology for wooden elements and structures of bridges, hydraulic structures, buildings, taking into account the changes in the moisture content of the materialhttps://sciencehorizon.com.ua/en/journals/tom-26-1-2023/metodika-viznachennya-kritichnikh-deformatsiy-derevini-za-riznoyi-vologostimoisture content“stress-strain” curvecompression along the fibresmodulus of elasticityultimate strength |
| spellingShingle | Sviatoslav Homon Serhii Litnitsky Petro Gomon Leonid Kulakovskyi Iryna Kutsyna Methods for determining the critical deformations of wood with various moisture content Наукові горизонти moisture content “stress-strain” curve compression along the fibres modulus of elasticity ultimate strength |
| title | Methods for determining the critical deformations of wood with various moisture content |
| title_full | Methods for determining the critical deformations of wood with various moisture content |
| title_fullStr | Methods for determining the critical deformations of wood with various moisture content |
| title_full_unstemmed | Methods for determining the critical deformations of wood with various moisture content |
| title_short | Methods for determining the critical deformations of wood with various moisture content |
| title_sort | methods for determining the critical deformations of wood with various moisture content |
| topic | moisture content “stress-strain” curve compression along the fibres modulus of elasticity ultimate strength |
| url | https://sciencehorizon.com.ua/en/journals/tom-26-1-2023/metodika-viznachennya-kritichnikh-deformatsiy-derevini-za-riznoyi-vologosti |
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