Home > Search Results: keywords:"structural joints"
Search:
Search Tips :: Advanced Search
Search collections:
Sort by: Display results: Output format:
National Repository of Grey Literature 1 records found  Search took 0.00 seconds. 
Pevnost vybraných konstrukčních spojů s použitím modifikovaného dřeva buku
 Valíčková, Lenka
The thesis focuses on the influence of selected European beech wood modifications (Fagus sylvatica L.), i.e. acetylation and thermal modification at 200 °C and 220 °C, on the strength of structural joints used in the furniture industry. Based on the literature research, three types of structural joints were selected, which were subsequently tested. The strength of the glued joint was tested according to ČSN EN 205, withdrawal capacity of a screw according to ČSN 49 0135 and the corner screw joint. The results of the measurements were statistically evaluated using a one-way ANOVA and the measured groups were compared to each other. The results demonstrate that all types of modification lead to a decrease in mechanical strength. Wood acetylation lead to a statistically significant differences in the values for the glued joint. The thermal modification at 200 °C achieved statistically significant differences in the withdrawal capacity of a screw. The biggest drop in values came after a thermal modification at 220 °C, which were statistically significantly different when testing all selected joints. In the case of acetylation and heat modification up to 200 °C, it is not possible to unequivocally identify a method that showed significantly better results across all tests. Both metods of modyfying wood showed possibilities of use in furniture design. However, a decrease in the mechanical properties ofthe modifies material muse be taken into account when determining the dimensions of the structure.
Detailed record

Interested in being notified about new results for this query?
Subscribe to the RSS feed.
Digital Repository :: Search :: Submit :: Personalize :: Help
Powered by Invenio v1.1.2
Maintained by admin.invenio@techlib.cz
This site is also available in the following languages:
Česky  English