Fatigue Performance Study of E36 Steel Welding Joint
Fatigue test was carried out on E36 steel no reinforcement welding joint under the same constant amplitude load with ultrasound fatigue tester independent designed by Tianjin University. Test results showed that the specimen would enter infinite life area after 1 x 109 cycle times; All broken specimens fractured in the welding seam. We observed fracture surface using SEM and found all the crack initiation from defects. This paper further analysed the influence of nature, size, position, and distribution of defects on fatigue life.
Linli Xu, Wenya Tian and Elwin Mao
Z.X. Song et al., "Fatigue Performance Study of E36 Steel Welding Joint", Applied Mechanics and Materials, Vols. 80-81, pp. 173-177, 2011