Fig. 4
From: Theoretical modeling and experimental study of Japanese “Watari-ago” joints
a Geometry of compressed deformation of “Watari-ago” joint under a deformation angle θ (top view of the joint in Fig. 2). Darker parts mean deformed areas. b Three dimensionally expression of a deformed part in upper beam. It is divided into 4 parts. The axis x, y, z is according to Fig. 2. a, d, e and j size parameters in Fig. 2, P u and P l embedment forces produced on the upper and lower beams, l u and l l length from the rotational center to loading points P u and P l