Experimental and numerical study on shear properties of timber-to-timber joint using a dowel reinforced with a self-tapping screw

Herein, a beech wood dowel reinforced with self-tapping screw (composite in brief) is proposed. Composite dowels were welded into the predrilled holes by high speed rotation. Force-displacement curves obtained using single-shear and dual connection. A double-peaked pattern was found bearing process, indicating that wooden had synergistic effect process. Regarding failure mode, bent, whilst default fractured. Further, numerical simulation carried out finite element analysis software ABAQUS, result differed from test value only 4.30%, showing prediction accuracy. The study of capacity composite provides theoretical basis for practical application screws.