抄録
The article was mainly composed of the three approaches- stress distribution by the finite element method, mechanical model based on fracture mechanics and basic beam theory, and the experiment whose parameters were size effect, the ratio of bending moment and shear force, hole size, and the arrangement of the hole. We, in this article, propose a manual strength calculation method of the timber with..circular hole taken into account the size effect, hole size, and the ratio of the bending moment and shear force as the parameters. The validity of the proposed calculation method was confirmed by the experimental results.
