期刊
COMPOSITE STRUCTURES
卷 274, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compstruct.2021.114319
关键词
Bending work; Plastic work; Elastic work; Total work; Degree of densification
资金
- Advanced Research Supporting the Forestry and Wood-processing Sector's Adaptation to Global Change and the 4th Industrial Revolution - OP RDE [01/0.0/0.0/16_019/0000803]
- Internal Grant Agency (IGA) of the Faculty of Forestry and Wood Sciences [IGA B_19_03]
This study analyzes the composition of laminated materials based on solid and thermo-mechanically densified beech wood, as well as the use of reinforcing fibers. By examining factors such as input thickness, densification degree, and type of reinforcing fibers, the behavior of elastic, plastic, and total bending work was investigated. The findings point to a more efficient choice of wood modifications by densification and reinforcing fibers.
This work analyzes the influence of the composition of laminated materials based on solid and thermo- mechanically densified beech wood and the application of reinforcing elements in the form of reinforcing fibers. The paper investigates the behavior of the elastic, plastic, and total bending work and their ratios concerning the composition of the material. These characteristics are essential in determining the appropriate application of these materials in structural systems concerning the deformation energy in the elastic and plastic stress-strain areas. From the material point of view, factors such as the input thickness of beech lamellas (5 and 9 mm), the degree of densification of lamellas (references, 10%, 20%, 30%, and 40%), and the application of reinforcing fibers (carbon and glass) were observed and distinguished. There are several approaches to evaluate elastic and plastic work in bending. This paper deals with a more accurate method by integrating the curve of the force-deflection diagram. The output of the article points to a more efficient choice of beech wood modifications by densification concerning the formation of internal cracks in conjunction with the reinforcing fibers.
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