WebBecause wood is an irregular, heterogeneous, and anisotropic material (Thuvander et al. 2002), the longitudinal, tangential, and radial shrinkages of wood are different during the drying process, and they may produce drying defects such as cracks, warps, and splits. Previous reports have clarified that in normal wood, the longitudinal shrinkage ... WebDuring bending, normal stress and tangential stresses develop. As a viscous elastic material, in time the wood deforms in the plastic domain, causing permanent deformations. ... As the test samples showed a variable section with respect to both the longitudinal axis and the height, the displacements along the bars were measured in 7 points. ...
CHAPTER 1 - STRUCTURE AND PROPERTIES OF WOOD
WebWood surfaces are classified into three categories, or geometric planes of reference, that indicate the type of surface uncovered after a cut has been made. The three reference planes are the cross section, radial section and tangential section. Figure 1 depicts the three reference planes of wood. Weborientation are longitudinal: they follow the cells orientation in the trunk. The first type of longitudinal section, the so-called radial one, passes through the pith: the centre of the trunk. The second type, the tangential section does … city bank \u0026 trust
Wood under the microscope
Webdirectly proportional to moisture content changes in the wood. Wood shrinks and swells the greatest amount in the tangential direction, about half as much in the radial direction, and about 0.1% to 0.2% in the longitudinal direction, Figure 4. … WebTHREE VIEWS OF WOOD; TRANSVERSE, RADIAL, AND TANGENTIAL Transverse sections are cross sections through a stem, root, or branch [A]. Radial sections are longitudinal cuts … http://cupac.bh.cornell.edu/anatomy_manual/Topic9.html city bank to bkash