溶接継手の平面曲げ疲れ(その1)

概要

論文の詳細を見る
To obtain the fatigue strength of welded joints important in connection with strength, design and manufacture of truck frame or axle and wheel, some brief plain bending fatigue tests were conducted. Specimens of two kinds of Structural steels i.e. mild steels and high tension steels were butt-welded, and bent under two kinds of loads, parallel or rectangular to the beads. The results show that : (1) When the bending stress is rectangular to the bead the fatigue limit of the welded mild steel specimen scarcely decreases as compared with the base specimen, but that of the welded high tension steel is reduced to 70% of the base metal. In case of the bending stress being parallel to the beads, both have the same fatigue limit as the base specimens. (2) With such a thin plate as tested this time, the projection of the bead has much influence on the fatigue failure. (3) The results of the present test do not furnish sufficient data to make evaluation of strength by comparison between stress test under running conditions and fatigue test. Therefore, further studies on this subject will be necessary.
一般社団法人日本機械学会の論文
1958-11-25