期刊
MATERIALS
卷 15, 期 11, 页码 -出版社
MDPI
DOI: 10.3390/ma15113974
关键词
structural timber; pine sawn timber; wood defects; modulus of elasticity; strength properties
类别
资金
- National Centre for Research and Development [BIOSTRATEG3/344303/14/NCBR/2018]
- Faculty of Forestry and Wood Technology, Poznan University of Life Sciences [506.224.02.00]
Pine timber of Polish origin for structural purposes exhibits significant variability in quality parameters. Technological suitability is determined by evaluating mechanical, physical, and visual properties. Research shows a correlation between the occurrence of specific defects and the modulus of elasticity.
Pine timber of Polish origin intended for structural purposes is characterized by significant variability in the quality parameters. Technological suitability determined on the basis of relevant international classifications is based on the assessment of both selected mechanical and physical properties of wood. Moreover, the description of visual properties is also a valuable indicator regarding defect distribution. In the group of quality features playing a crucial role in the classification of sawn timber, there are knots, disruptions of grains, cracks, etc. Thus, the aim of the research was to determine the correlation between the presence of selected defects and the strength properties of individual timber pieces. This type of study is based on a nondestructive test method that allows for high optimization of sawn materials processing. In the case of sawn timber of Polish origin, the modulus of elasticity (MOE) determined using the sonic test is commonly used as a criterion. The research material was harvested from southern Poland. The results of the conducted studies confirmed a correlation between an increasing occurrence of particular types of defects and the results of MOE. Furthermore, as a result of the performed investigations, no significant effect of narrow surface cracks on strength properties was observed.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据