Abstract
The physical properties of high-density plywood produced from Tego-bonded birch veneer, the grain direction of all plies parallel, are presented and compared with the corresponding properties of various metals. It is shown that the strength properties are directly related to the specific gravity. Stress-strain curves in tension indicate that this material not only has no normal yield point but actually shows a decrease in elongation per unit load at high loads. The moduli of elasticity in tension and compression are shown to be greatly different. The behavior in torsion is discussed, and the effect on the tensile strength of cross-laying the veneers is presented. The effect of immersion in water and the effect of various humidity conditions are given.
