ABSTRACT
The authors proposed a technique for improving the fatigue strength of the weld root by filling the resin. In this study, fatigue tests were carried out on sole plate specimens with or without filling the resin between sole and base plates. As the results of the fatigue tests, the fatigue strength of weld root was extremely improved by the complete filling the resin even for partial filling the resin. Furthermore, it was shown that fatigue life could be estimated by the fatigue strength evaluation method using deformation of the weld root.
