Micro-mechanical tests on tissue slices of Norway spruce: tensile and shear performance.

The characterization of the wood behavior at the tissue scale is still scarcely explored compared with the macroscopic scale, especially for shear. This work focuses on the mechanical properties of tissue samples of Norway spruce (<italic>Picea abies</italic>). Tensile and shear tests were conducted in different anatomical directions and relative humidity (RH) levels. The results provide insights into the distinct behaviors of early- and latewood and their combination within growth rings, showing the significant impact of RH on performance. [ABSTRACT FROM AUTHOR]