Transverse Shrinkage of Coniferous Wood Cells Examined Using Replica Method and Power Spectrum Analysis

Abstract

The shrinkage behavior of coniferous wood cells was investigated by the power spectrum analysis as well as by the replica method. During drying, cell lumens shrank in normal wood and expanded in compression wood, depending on their cell wall structures. The tracheids of Agathis bornensis with no distinct growth rings also showed the anisotropic shrinkage. The representative cell models before and after shrinkage constructed by the power spectrum analysis revealed that the difference in the anisotropic shrinkage among wood species greatly depended on their transverse cell shapes.