The Influence of Cyclic Loading on Ultimate Bending Strength of Beech Solid and Laminated Wood

被引：6
|
作者：
Gaff, Milan [1 ]
Gasparik, Miroslav [2 ]
Barcik, Stefan [2 ]
机构：
[1] Tech Univ, Fac Wood Sci & Technol, Dept Furniture & Wood Prod, Zvolen, Slovakia
[2] Czech Univ Life Sci Prague, Fac Forestry & Wood Sci, Dept Wood Proc, Prague 16521 6, Suchdol, Czech Republic
来源：
DRVNA INDUSTRIJA | 2014年 / 65卷 / 03期
关键词：
cyclic loading; laminated wood; solid wood; ultimate bending strength; beech wood; PVAC adhesive;
D O I：
10.5552/drind.2014.1336
中图分类号：
TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];
学科分类号：
0805 ; 080502 ; 0822 ;
摘要：
This work investigates the influence of cyclic loading of beech solid and laminated wood of various thicknesses on ultimate bending strength (ultimate flexural strength) sigma(p) during bending in radial direction. For identification of ultimate bending strength, the static bending test with three-point loading was used. The ultimate bending strength was detected on testing samples that were not cyclically loaded and the results were compared with other results obtained from samples that were cyclically loaded. The results of this work show that the influence of cyclic loading on values of ultimate bending strength for solid and laminated wood is not significant. Thickness influence is a significant factor for both tested materials. The results show that the increase of thickness causes the decrease of ultimate bending strength. In our opinion, the decrease of ultimate bending strength is not caused by the sample thickness but by different sample lengths. With the increase of the sample length, the influence of inhomogeneous wood properties also increases.
引用
收藏
页码：197 / 203
页数：7
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