The board is subjected to a tensile force of 200200 lb. Determine the average normal and average shear stress in the wood fibers, which are oriented along plane a−a at 20∘ with the axis of the board.
The board is subjected to a tensile force of 200200 lb. Determine the average normal and average shear stress in the wood fibers, which are oriented along plane a−a at 20∘ with the axis of the board.