リブ補強に関する研究 : 第3報, 直交する部材の剛性が互に異なる場合の三角形リブすみ肉部の応力集中

概要

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By using the two-dimensional photoelastic method, the authors have investigated the various factors affecting the scf. at the reentrant corner of triangular rib, when the rigidities of intersecting members were different and subjected to pure bending. The results obtained were as follows : 1. The stress concentration factor (scf.) was not affected by the rigidity of the opposite member unless the rib was very small. 2. The scf. decreased as the fillet radius and dimension of rib increased. On the other hand, the scf. increased as the angle of rib and thickness of member increased. 3. For reinforcing the intersecting members with different rigidities, the dimensions of triangular rib should be so chosen as the longer side is attached to the member of higher rigidity and the shorter one to that of lower rigidity, because the maximum stresses at the reentrant corners could be thus equalized. And the most appropriate ratio of the shorter side to longer one decreased with increasing ratio of rigidity of intersecting members, dimension of rib and fillet radius.
一般社団法人日本機械学会の論文
1963-07-25