Abstract
This paper is a report on the results of the static and fatigue strength tests of the Welded T Joints. Twelve different types of the weld (A to J as shown in Fig. 1) are tested in the experiments. The results of the tests are summarized as follows: 1) In the static test, all specimens of the twelve types showed sufficient strength. 2) In the fatigue test, the Fillet Weld (A and B type in Fig. 1) was broken at the lowest stress, while the K-Groove Butt Weld (H and H_2 type) was broken at the highest stress. 3) The C-type joint showed not only the sufficient strength in the static test, but also in the fatigue test, it showed almost the same strength as the K-Groove Butt Weld.