抄録
This study proposed a simple method for estimating local stresses in as-welded joints and established a fatigue assessment method by using the estimated local stress. In this method, the local stress at the as-welded toe is estimated from the stress at the weld toe finished by grinding, where the stress can be measured by strain gauges. Fatigue tests and finite element analyses were conducted with out-of-plane gusset welded joints in as-welded and finished conditions. Based on the results, the local stress at the as-welded toe was correlated with the stress at the finished groove. It was concluded that the fatigue strength of the as-welded joints can be evaluated by using the local stress estimated by the proposed method.
