Fig. 15
From: Hygro-mechanical response of oak wood cabinet door panels under relative humidity fluctuations
Free hygral shrinkage (left) and restrained hygral shrinkage (right). The restrained hygral shrinkage originates from a difference in the coefficient of hygroscopic expansion of structural components forming a connection, i.e., Type 2 shrinkage. The solid grey lines indicate the original dimensions of the board, whereas the solid black lines represent the dimensional change upon hygral shrinkage